| 1 |  |  | <?php namespace Tarsana\Functional; | 
            
                                                                                                            
                            
            
                                    
            
            
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                | 3 |  |  | /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 4 |  |  |  * This file contains operators as functions. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 5 |  |  |  * @file | 
            
                                                                                                            
                            
            
                                    
            
            
                | 6 |  |  |  */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 7 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 8 |  |  | /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 9 |  |  |  * Returns `$a && $b`. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 10 |  |  |  * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 11 |  |  |  * ```php | 
            
                                                                                                            
                            
            
                                    
            
            
                | 12 |  |  |  * $isTrue = F\and_(true); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 13 |  |  |  * $isTrue(false); //=> false | 
            
                                                                                                            
                            
            
                                    
            
            
                | 14 |  |  |  * $isTrue(true); //=> true | 
            
                                                                                                            
                            
            
                                    
            
            
                | 15 |  |  |  * ``` | 
            
                                                                                                            
                            
            
                                    
            
            
                | 16 |  |  |  * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 17 |  |  |  * @stream | 
            
                                                                                                            
                            
            
                                    
            
            
                | 18 |  |  |  * @signature Boolean -> Boolean -> Boolean | 
            
                                                                                                            
                            
            
                                    
            
            
                | 19 |  |  |  * @param  bool $a | 
                            
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                | 20 |  |  |  * @param  bool $b | 
                            
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                | 21 |  |  |  * @return bool | 
            
                                                                                                            
                            
            
                                    
            
            
                | 22 |  |  |  */ | 
            
                                                                                                            
                            
            
                                                                    
                                                                                                        
            
            
                | 23 |  | View Code Duplication | function and_() { | 
                            
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                | 24 |  |  |     static $and = false; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 25 |  |  |     $and = $and ?: curry(function($a, $b){ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 26 |  |  |         return $a && $b; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 27 |  |  |     }); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 28 |  |  |     return _apply($and, func_get_args()); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 29 |  |  | } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 30 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 31 |  |  | /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 32 |  |  |  * Returns `$a || $b`. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 33 |  |  |  * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 34 |  |  |  * ```php | 
            
                                                                                                            
                            
            
                                    
            
            
                | 35 |  |  |  * $isTrue = F\or_(false); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 36 |  |  |  * $isTrue(false); //=> false | 
            
                                                                                                            
                            
            
                                    
            
            
                | 37 |  |  |  * $isTrue(true); //=> true | 
            
                                                                                                            
                            
            
                                    
            
            
                | 38 |  |  |  * ``` | 
            
                                                                                                            
                            
            
                                    
            
            
                | 39 |  |  |  * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 40 |  |  |  * @stream | 
            
                                                                                                            
                            
            
                                    
            
            
                | 41 |  |  |  * @signature Boolean -> Boolean -> Boolean | 
            
                                                                                                            
                            
            
                                    
            
            
                | 42 |  |  |  * @param  bool $a | 
                            
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                | 43 |  |  |  * @param  bool $b | 
                            
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                | 44 |  |  |  * @return bool | 
            
                                                                                                            
                            
            
                                    
            
            
                | 45 |  |  |  */ | 
            
                                                                                                            
                            
            
                                                                    
                                                                                                        
            
            
                | 46 |  | View Code Duplication | function or_() { | 
                            
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                | 47 |  |  |     static $or = false; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 48 |  |  |     $or = $or ?: curry(function($a, $b){ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 49 |  |  |         return $a || $b; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 50 |  |  |     }); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 51 |  |  |     return _apply($or, func_get_args()); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 52 |  |  | } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 53 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 54 |  |  | /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 55 |  |  |  * Returns `!$x`. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 56 |  |  |  * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 57 |  |  |  * ```php | 
            
                                                                                                            
                            
            
                                    
            
            
                | 58 |  |  |  * F\map(F\not(), [true, false, true]); //=> [false, true, false] | 
            
                                                                                                            
                            
            
                                    
            
            
                | 59 |  |  |  * ``` | 
            
                                                                                                            
                            
            
                                    
            
            
                | 60 |  |  |  * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 61 |  |  |  * @stream | 
            
                                                                                                            
                            
            
                                    
            
            
                | 62 |  |  |  * @signature Boolean -> Boolean | 
            
                                                                                                            
                            
            
                                    
            
            
                | 63 |  |  |  * @param  bool $x | 
                            
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                | 64 |  |  |  * @return bool | 
            
                                                                                                            
                            
            
                                    
            
            
                | 65 |  |  |  */ | 
            
                                                                                                            
                            
            
                                                                    
                                                                                                        
            
            
                | 66 |  | View Code Duplication | function not() { | 
                            
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                | 67 |  |  |     static $not = false; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 68 |  |  |     $not = $not ?: curry(function($x) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 69 |  |  |         return !$x; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 70 |  |  |     }); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 71 |  |  |     return _apply($not, func_get_args()); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 72 |  |  | } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 73 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 74 |  |  | /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 75 |  |  |  * Returns `$x == $y`. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 76 |  |  |  * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 77 |  |  |  * ```php | 
            
                                                                                                            
                            
            
                                    
            
            
                | 78 |  |  |  * F\eq('10', 10); //=> true | 
            
                                                                                                            
                            
            
                                    
            
            
                | 79 |  |  |  * ``` | 
            
                                                                                                            
                            
            
                                    
            
            
                | 80 |  |  |  * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 81 |  |  |  * @stream | 
            
                                                                                                            
                            
            
                                    
            
            
                | 82 |  |  |  * @signature * -> * -> Boolean | 
            
                                                                                                            
                            
            
                                    
            
            
                | 83 |  |  |  * @param  mixed $a | 
                            
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                | 84 |  |  |  * @param  mixed $b | 
                            
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                | 85 |  |  |  * @return bool | 
            
                                                                                                            
                            
            
                                    
            
            
                | 86 |  |  |  */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 87 |  |  | function eq() { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 88 |  |  |     $eq = curry(function($a, $b){ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 89 |  |  |         return $a == $b; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 90 |  |  |     }); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 91 |  |  |     return _apply($eq, func_get_args()); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 92 |  |  | } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 93 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 94 |  |  | /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 95 |  |  |  * Returns `$x != $y`. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 96 |  |  |  * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 97 |  |  |  * ```php | 
            
                                                                                                            
                            
            
                                    
            
            
                | 98 |  |  |  * F\notEq('Hi', 'Hello'); //=> true | 
            
                                                                                                            
                            
            
                                    
            
            
                | 99 |  |  |  * ``` | 
            
                                                                                                            
                            
            
                                    
            
            
                | 100 |  |  |  * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 101 |  |  |  * @stream | 
            
                                                                                                            
                            
            
                                    
            
            
                | 102 |  |  |  * @signature * -> * -> Boolean | 
            
                                                                                                            
                            
            
                                    
            
            
                | 103 |  |  |  * @param  mixed $a | 
                            
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                | 104 |  |  |  * @param  mixed $b | 
                            
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                | 105 |  |  |  * @return bool | 
            
                                                                                                            
                            
            
                                    
            
            
                | 106 |  |  |  */ | 
            
                                                                                                            
                            
            
                                                                    
                                                                                                        
            
            
                | 107 |  | View Code Duplication | function notEq() { | 
                            
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                | 108 |  |  |     static $notEq = false; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 109 |  |  |     $notEq = $notEq ?: curry(function($a, $b){ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 110 |  |  |         return $a != $b; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 111 |  |  |     }); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 112 |  |  |     return _apply($notEq, func_get_args()); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 113 |  |  | } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 114 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 115 |  |  | /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 116 |  |  |  * Returns `$x === $y`. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 117 |  |  |  * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 118 |  |  |  * ```php | 
            
                                                                                                            
                            
            
                                    
            
            
                | 119 |  |  |  * F\eqq(10, '10'); //=> false | 
            
                                                                                                            
                            
            
                                    
            
            
                | 120 |  |  |  * ``` | 
            
                                                                                                            
                            
            
                                    
            
            
                | 121 |  |  |  * @stream | 
            
                                                                                                            
                            
            
                                    
            
            
                | 122 |  |  |  * @signature * -> * -> Boolean | 
            
                                                                                                            
                            
            
                                    
            
            
                | 123 |  |  |  * @param  mixed $a | 
                            
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                | 124 |  |  |  * @param  mixed $b | 
                            
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                | 125 |  |  |  * @return bool | 
            
                                                                                                            
                            
            
                                    
            
            
                | 126 |  |  |  */ | 
            
                                                                                                            
                            
            
                                                                    
                                                                                                        
            
            
                | 127 |  | View Code Duplication | function eqq() { | 
                            
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                | 128 |  |  |     static $eqq = false; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 129 |  |  |     $eqq = $eqq ?: curry(function($a, $b){ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 130 |  |  |         return $a === $b; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 131 |  |  |     }); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 132 |  |  |     return _apply($eqq, func_get_args()); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 133 |  |  | } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 134 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 135 |  |  | /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 136 |  |  |  * Returns `$x !== $y`. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 137 |  |  |  * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 138 |  |  |  * ```php | 
            
                                                                                                            
                            
            
                                    
            
            
                | 139 |  |  |  * F\notEqq(10, '10'); //=> true | 
            
                                                                                                            
                            
            
                                    
            
            
                | 140 |  |  |  * ``` | 
            
                                                                                                            
                            
            
                                    
            
            
                | 141 |  |  |  * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 142 |  |  |  * @stream | 
            
                                                                                                            
                            
            
                                    
            
            
                | 143 |  |  |  * @signature * -> * -> Boolean | 
            
                                                                                                            
                            
            
                                    
            
            
                | 144 |  |  |  * @param  mixed $a | 
                            
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                | 145 |  |  |  * @param  mixed $b | 
                            
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                | 146 |  |  |  * @return bool | 
            
                                                                                                            
                            
            
                                    
            
            
                | 147 |  |  |  */ | 
            
                                                                                                            
                            
            
                                                                    
                                                                                                        
            
            
                | 148 |  | View Code Duplication | function notEqq() { | 
                            
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                | 149 |  |  |     static $notEqq = false; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 150 |  |  |     $notEqq = $notEqq ?: curry(function($a, $b){ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 151 |  |  |         return $a !== $b; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 152 |  |  |     }); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 153 |  |  |     return _apply($notEqq, func_get_args()); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 154 |  |  | } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 155 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 156 |  |  | /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 157 |  |  |  * Returns `true` if the two elements have the same type and are deeply equivalent. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 158 |  |  |  * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 159 |  |  |  * ```php | 
            
                                                                                                            
                            
            
                                    
            
            
                | 160 |  |  |  * $a = (object) ['a' => 1, 'b' => (object) ['c' => 'Hello'], 'd' => false]; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 161 |  |  |  * $b = (object) ['a' => 1, 'b' => (object) ['c' => 'Hi'], 'd' => false]; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 162 |  |  |  * $c = (object) ['a' => 1, 'b' => ['c' => 'Hello'], 'd' => false]; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 163 |  |  |  * // should have the same type | 
            
                                                                                                            
                            
            
                                    
            
            
                | 164 |  |  |  * F\equals(5, '5'); //=> false | 
            
                                                                                                            
                            
            
                                    
            
            
                | 165 |  |  |  * F\equals([1, 2, 3], [1, 2, 3]); //=> true | 
            
                                                                                                            
                            
            
                                    
            
            
                | 166 |  |  |  * // should have the same order | 
            
                                                                                                            
                            
            
                                    
            
            
                | 167 |  |  |  * F\equals([1, 3, 2], [1, 2, 3]); //=> false | 
            
                                                                                                            
                            
            
                                    
            
            
                | 168 |  |  |  * F\equals($a, $b); //=> false | 
            
                                                                                                            
                            
            
                                    
            
            
                | 169 |  |  |  * F\equals($a, $c); //=> false | 
            
                                                                                                            
                            
            
                                    
            
            
                | 170 |  |  |  * $b->b->c = 'Hello'; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 171 |  |  |  * F\equals($a, $b); //=> true | 
            
                                                                                                            
                            
            
                                    
            
            
                | 172 |  |  |  * ``` | 
            
                                                                                                            
                            
            
                                    
            
            
                | 173 |  |  |  * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 174 |  |  |  * @stream | 
            
                                                                                                            
                            
            
                                    
            
            
                | 175 |  |  |  * @signature * -> * -> Boolean | 
            
                                                                                                            
                            
            
                                    
            
            
                | 176 |  |  |  * @param  mixed $a | 
                            
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                | 177 |  |  |  * @param  mixed $b | 
                            
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                | 178 |  |  |  * @return bool | 
            
                                                                                                            
                                                                
            
                                    
            
            
                | 179 |  |  |  */ | 
            
                                                                        
                            
            
                                    
            
            
                | 180 |  |  | function equals() { | 
            
                                                                        
                            
            
                                    
            
            
                | 181 |  |  |     static $equals = false; | 
            
                                                                        
                            
            
                                    
            
            
                | 182 |  |  |     $equals = $equals ?: curry(_f('_equals')); | 
            
                                                                        
                            
            
                                    
            
            
                | 183 |  |  |     return _apply($equals, func_get_args()); | 
            
                                                                        
                            
            
                                    
            
            
                | 184 |  |  | } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 185 |  |  | function _equals($a, $b) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 186 |  |  |     $type = type($a); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 187 |  |  |     if ($type != type($b)) | 
            
                                                                                                            
                            
            
                                    
            
            
                | 188 |  |  |         return false; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 189 |  |  |     switch ($type) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 190 |  |  |         case 'List': | 
            
                                                                                                            
                            
            
                                    
            
            
                | 191 |  |  |             $length = count($a); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 192 |  |  |             if (count($b) != $length) | 
            
                                                                                                            
                            
            
                                    
            
            
                | 193 |  |  |                 return false; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 194 |  |  |             $index = 0; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 195 |  |  |             while ($index < $length) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 196 |  |  |                 if (!_equals($a[$index], $b[$index])) | 
            
                                                                                                            
                            
            
                                    
            
            
                | 197 |  |  |                     return false; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 198 |  |  |                 $index ++; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 199 |  |  |             } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 200 |  |  |             return true; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 201 |  |  |         case 'Array': | 
            
                                                                                                            
                            
            
                                    
            
            
                | 202 |  |  |         case 'ArrayObject': | 
            
                                                                                                            
                            
            
                                    
            
            
                | 203 |  |  |         case 'Object': | 
            
                                                                                                            
                            
            
                                    
            
            
                | 204 |  |  |             $keysA = keys($a); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 205 |  |  |             $keysB = keys($b); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 206 |  |  |             $length = count($keysA); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 207 |  |  |             if (count($keysB) != $length) | 
            
                                                                                                            
                            
            
                                    
            
            
                | 208 |  |  |                 return false; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 209 |  |  |             $index = 0; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 210 |  |  |             while ($index < $length) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 211 |  |  |                 if (!_equals($keysA[$index], $keysB[$index])) | 
            
                                                                                                            
                            
            
                                    
            
            
                | 212 |  |  |                     return false; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 213 |  |  |                 if (!_equals(get($keysA[$index], $a), get($keysB[$index], $b))) | 
            
                                                                                                            
                            
            
                                    
            
            
                | 214 |  |  |                     return false; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 215 |  |  |                 $index ++; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 216 |  |  |             } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 217 |  |  |             return true; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 218 |  |  |         default: | 
            
                                                                                                            
                            
            
                                    
            
            
                | 219 |  |  |             return $a == $b; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 220 |  |  |     } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 221 |  |  | } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 222 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 223 |  |  | /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 224 |  |  |  * Returns `true` if the results of applying `$fn` to `$a` and `$b` are deeply equal. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 225 |  |  |  * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 226 |  |  |  * ```php | 
            
                                                                                                            
                            
            
                                    
            
            
                | 227 |  |  |  * $headEquals = F\equalBy(F\head()); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 228 |  |  |  * $headEquals([1, 2], [1, 3]); //=> true | 
            
                                                                                                            
                            
            
                                    
            
            
                | 229 |  |  |  * $headEquals([3, 2], [1, 3]); //=> false | 
            
                                                                                                            
                            
            
                                    
            
            
                | 230 |  |  |  * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 231 |  |  |  * $sameAge = F\equalBy(F\get('age')); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 232 |  |  |  * $foo = ['name' => 'foo', 'age' => 11]; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 233 |  |  |  * $bar = ['name' => 'bar', 'age' => 13]; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 234 |  |  |  * $baz = ['name' => 'baz', 'age' => 11]; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 235 |  |  |  * $sameAge($foo, $bar); //=> false | 
            
                                                                                                            
                            
            
                                    
            
            
                | 236 |  |  |  * $sameAge($foo, $baz); //=> true | 
            
                                                                                                            
                            
            
                                    
            
            
                | 237 |  |  |  * ``` | 
            
                                                                                                            
                            
            
                                    
            
            
                | 238 |  |  |  * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 239 |  |  |  * @stream | 
            
                                                                                                            
                            
            
                                    
            
            
                | 240 |  |  |  * @signature (a -> b) -> a -> a -> Boolean | 
            
                                                                                                            
                            
            
                                    
            
            
                | 241 |  |  |  * @return [type] [description] | 
                            
                    |  |  |  | 
                                                                                        
                                                                                     | 
            
                                                                                                            
                            
            
                                    
            
            
                | 242 |  |  |  */ | 
            
                                                                                                            
                            
            
                                                                    
                                                                                                        
            
            
                | 243 |  | View Code Duplication | function equalBy() { | 
                            
                    |  |  |  | 
                                                                                        
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                | 244 |  |  |     static $equalBy = false; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 245 |  |  |     $equalBy = $equalBy ?: curry(function($fn, $a, $b) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 246 |  |  |         return _equals($fn($a), $fn($b)); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 247 |  |  |     }); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 248 |  |  |     return _apply($equalBy, func_get_args()); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 249 |  |  | } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 250 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 251 |  |  | /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 252 |  |  |  * Returns `$a < $b`. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 253 |  |  |  * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 254 |  |  |  * ```php | 
            
                                                                                                            
                            
            
                                    
            
            
                | 255 |  |  |  * F\lt(3, 5); //=> true | 
            
                                                                                                            
                            
            
                                    
            
            
                | 256 |  |  |  * F\lt(5, 5); //=> false | 
            
                                                                                                            
                            
            
                                    
            
            
                | 257 |  |  |  * ``` | 
            
                                                                                                            
                            
            
                                    
            
            
                | 258 |  |  |  * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 259 |  |  |  * @stream | 
            
                                                                                                            
                            
            
                                    
            
            
                | 260 |  |  |  * @signature * -> * -> Boolean | 
            
                                                                                                            
                            
            
                                    
            
            
                | 261 |  |  |  * @param  mixed $a | 
                            
                    |  |  |  | 
                                                                                        
                                                                                     | 
            
                                                                                                            
                            
            
                                    
            
            
                | 262 |  |  |  * @param  mixed $b | 
                            
                    |  |  |  | 
                                                                                        
                                                                                     | 
            
                                                                                                            
                            
            
                                    
            
            
                | 263 |  |  |  * @return bool | 
            
                                                                                                            
                            
            
                                    
            
            
                | 264 |  |  |  */ | 
            
                                                                                                            
                            
            
                                                                    
                                                                                                        
            
            
                | 265 |  | View Code Duplication | function lt() { | 
                            
                    |  |  |  | 
                                                                                        
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                | 266 |  |  |     static $lt = false; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 267 |  |  |     $lt = $lt ?: curry(function($a, $b){ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 268 |  |  |         return $a < $b; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 269 |  |  |     }); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 270 |  |  |     return _apply($lt, func_get_args()); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 271 |  |  | } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 272 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 273 |  |  | /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 274 |  |  |  * Returns `$a <= $b`. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 275 |  |  |  * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 276 |  |  |  * ```php | 
            
                                                                                                            
                            
            
                                    
            
            
                | 277 |  |  |  * F\lte(3, 5); //=> true | 
            
                                                                                                            
                            
            
                                    
            
            
                | 278 |  |  |  * F\lte(5, 5); //=> true | 
            
                                                                                                            
                            
            
                                    
            
            
                | 279 |  |  |  * ``` | 
            
                                                                                                            
                            
            
                                    
            
            
                | 280 |  |  |  * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 281 |  |  |  * @stream | 
            
                                                                                                            
                            
            
                                    
            
            
                | 282 |  |  |  * @signature * -> * -> Boolean | 
            
                                                                                                            
                            
            
                                    
            
            
                | 283 |  |  |  * @param  mixed $a | 
                            
                    |  |  |  | 
                                                                                        
                                                                                     | 
            
                                                                                                            
                            
            
                                    
            
            
                | 284 |  |  |  * @param  mixed $b | 
                            
                    |  |  |  | 
                                                                                        
                                                                                     | 
            
                                                                                                            
                            
            
                                    
            
            
                | 285 |  |  |  * @return bool | 
            
                                                                                                            
                            
            
                                    
            
            
                | 286 |  |  |  */ | 
            
                                                                                                            
                            
            
                                                                    
                                                                                                        
            
            
                | 287 |  | View Code Duplication | function lte() { | 
                            
                    |  |  |  | 
                                                                                        
                                                                                     | 
            
                                                                                                            
                            
            
                                    
            
            
                | 288 |  |  |     static $lte = false; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 289 |  |  |     $lte = $lte ?: curry(function($a, $b){ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 290 |  |  |         return $a <= $b; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 291 |  |  |     }); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 292 |  |  |     return _apply($lte, func_get_args()); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 293 |  |  | } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 294 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 295 |  |  | /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 296 |  |  |  * Returns `$a > $b`. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 297 |  |  |  * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 298 |  |  |  * ```php | 
            
                                                                                                            
                            
            
                                    
            
            
                | 299 |  |  |  * F\gt(5, 3); //=> true | 
            
                                                                                                            
                            
            
                                    
            
            
                | 300 |  |  |  * F\gt(5, 5); //=> false | 
            
                                                                                                            
                            
            
                                    
            
            
                | 301 |  |  |  * ``` | 
            
                                                                                                            
                            
            
                                    
            
            
                | 302 |  |  |  * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 303 |  |  |  * @stream | 
            
                                                                                                            
                            
            
                                    
            
            
                | 304 |  |  |  * @signature * -> * -> Boolean | 
            
                                                                                                            
                            
            
                                    
            
            
                | 305 |  |  |  * @param  mixed $a | 
                            
                    |  |  |  | 
                                                                                        
                                                                                     | 
            
                                                                                                            
                            
            
                                    
            
            
                | 306 |  |  |  * @param  mixed $b | 
                            
                    |  |  |  | 
                                                                                        
                                                                                     | 
            
                                                                                                            
                            
            
                                    
            
            
                | 307 |  |  |  * @return bool | 
            
                                                                                                            
                            
            
                                    
            
            
                | 308 |  |  |  */ | 
            
                                                                                                            
                            
            
                                                                    
                                                                                                        
            
            
                | 309 |  | View Code Duplication | function gt() { | 
                            
                    |  |  |  | 
                                                                                        
                                                                                     | 
            
                                                                                                            
                            
            
                                    
            
            
                | 310 |  |  |     static $gt = false; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 311 |  |  |     $gt = $gt ?: curry(function($a, $b){ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 312 |  |  |         return $a > $b; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 313 |  |  |     }); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 314 |  |  |     return _apply($gt, func_get_args()); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 315 |  |  | } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 316 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 317 |  |  | /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 318 |  |  |  * Returns `$a >= $b`. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 319 |  |  |  * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 320 |  |  |  * ```php | 
            
                                                                                                            
                            
            
                                    
            
            
                | 321 |  |  |  * F\gte(5, 3); //=> true | 
            
                                                                                                            
                            
            
                                    
            
            
                | 322 |  |  |  * F\gte(5, 5); //=> true | 
            
                                                                                                            
                            
            
                                    
            
            
                | 323 |  |  |  * ``` | 
            
                                                                                                            
                            
            
                                    
            
            
                | 324 |  |  |  * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 325 |  |  |  * @stream | 
            
                                                                                                            
                            
            
                                    
            
            
                | 326 |  |  |  * @signature * -> * -> Boolean | 
            
                                                                                                            
                            
            
                                    
            
            
                | 327 |  |  |  * @param  mixed $a | 
                            
                    |  |  |  | 
                                                                                        
                                                                                     | 
            
                                                                                                            
                            
            
                                    
            
            
                | 328 |  |  |  * @param  mixed $b | 
                            
                    |  |  |  | 
                                                                                        
                                                                                     | 
            
                                                                                                            
                            
            
                                    
            
            
                | 329 |  |  |  * @return bool | 
            
                                                                                                            
                            
            
                                    
            
            
                | 330 |  |  |  */ | 
            
                                                                                                            
                            
            
                                                                    
                                                                                                        
            
            
                | 331 |  | View Code Duplication | function gte() { | 
                            
                    |  |  |  | 
                                                                                        
                                                                                     | 
            
                                                                                                            
                            
            
                                    
            
            
                | 332 |  |  |     static $gte = false; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 333 |  |  |     $gte = $gte ?: curry(function($a, $b){ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 334 |  |  |         return $a >= $b; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 335 |  |  |     }); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 336 |  |  |     return _apply($gte, func_get_args()); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 337 |  |  | } | 
            
                                                                                                            
                                                                
            
                                    
            
            
                | 338 |  |  |  | 
            
                                                        
            
                                    
            
            
                | 339 |  |  |  | 
            
                        
This check looks for PHPDoc comments describing methods or function parameters that do not exist on the corresponding method or function.
Consider the following example. The parameter
$italyis not defined by the methodfinale(...).The most likely cause is that the parameter was removed, but the annotation was not.