| 1 |  |  | <?php | 
            
                                                                                                            
                            
            
                                    
            
            
                | 2 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 3 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 4 |  |  | namespace Sfneal\Helpers\Strings; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 5 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 6 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 7 |  |  | class StringHelpers | 
            
                                                                                                            
                            
            
                                    
            
            
                | 8 |  |  | { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 9 |  |  |     /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 10 |  |  |      * @var string | 
            
                                                                                                            
                            
            
                                    
            
            
                | 11 |  |  |      */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 12 |  |  |     private $string; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 13 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 14 |  |  |     /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 15 |  |  |      * StringHelpers constructor. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 16 |  |  |      * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 17 |  |  |      * @param string $string | 
            
                                                                                                            
                            
            
                                    
            
            
                | 18 |  |  |      */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 19 |  |  |     public function __construct(string $string) | 
            
                                                                                                            
                            
            
                                    
            
            
                | 20 |  |  |     { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 21 |  |  |         $this->string = $string; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 22 |  |  |     } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 23 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 24 |  |  |     /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 25 |  |  |      * Sanitize a file name to remove illegal chars. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 26 |  |  |      * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 27 |  |  |      * @return string | 
            
                                                                                                            
                            
            
                                    
            
            
                | 28 |  |  |      */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 29 |  |  |     public function sanitizeFileName(): string | 
            
                                                                                                            
                            
            
                                    
            
            
                | 30 |  |  |     { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 31 |  |  |         return preg_replace('/[^A-Za-z0-9_\-]/', '_', $this->string); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 32 |  |  |     } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 33 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 34 |  |  |     /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 35 |  |  |      * Truncate a string to be no longer than $chars. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 36 |  |  |      * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 37 |  |  |      * @param int $chars | 
            
                                                                                                            
                            
            
                                    
            
            
                | 38 |  |  |      * @param string $suffix | 
            
                                                                                                            
                            
            
                                    
            
            
                | 39 |  |  |      * @return string | 
            
                                                                                                            
                            
            
                                    
            
            
                | 40 |  |  |      */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 41 |  |  |     public function truncate(int $chars = 100, string $suffix = '...'): string | 
            
                                                                                                            
                            
            
                                    
            
            
                | 42 |  |  |     { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 43 |  |  |         return (strlen($this->string) <= $chars) ? $this->string : substr($this->string, 0, $chars) . $suffix; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 44 |  |  |     } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 45 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 46 |  |  |     /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 47 |  |  |      * Covert a camel cased string into a $char separated string. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 48 |  |  |      * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 49 |  |  |      * @param string $char | 
            
                                                                                                            
                            
            
                                    
            
            
                | 50 |  |  |      * @return string | 
            
                                                                                                            
                            
            
                                    
            
            
                | 51 |  |  |      */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 52 |  |  |     public function camelCaseConvert(string $char = '-'): string | 
            
                                                                                                            
                            
            
                                    
            
            
                | 53 |  |  |     { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 54 |  |  |         return strtolower(preg_replace('/(?<!^)[A-Z]/', $char.'$0', $this->string)); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 55 |  |  |     } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 56 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 57 |  |  |     /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 58 |  |  |      * Remove illegal characters from a string to create an ID. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 59 |  |  |      * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 60 |  |  |      * @return string | 
            
                                                                                                            
                                                                
            
                                    
            
            
                | 61 |  |  |      */ | 
            
                                                                        
                            
            
                                    
            
            
                | 62 |  |  |     public function id(): string | 
            
                                                                        
                            
            
                                    
            
            
                | 63 |  |  |     { | 
            
                                                                        
                            
            
                                    
            
            
                | 64 |  |  |         return strtolower( | 
            
                                                                        
                            
            
                                    
            
            
                | 65 |  |  |             str_replace(' ', '-', str_replace('&', '-', $this->string)) | 
            
                                                                                                            
                            
            
                                    
            
            
                | 66 |  |  |         ); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 67 |  |  |     } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 68 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 69 |  |  |     /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 70 |  |  |      * Remove ' ', '-', '&' characters. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 71 |  |  |      * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 72 |  |  |      * @return string | 
            
                                                                                                            
                            
            
                                    
            
            
                | 73 |  |  |      */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 74 |  |  |     public function strip() | 
            
                                                                                                            
                            
            
                                    
            
            
                | 75 |  |  |     { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 76 |  |  |         return strtolower( | 
            
                                                                                                            
                            
            
                                    
            
            
                | 77 |  |  |             str_replace( | 
            
                                                                                                            
                            
            
                                    
            
            
                | 78 |  |  |                 ',', '', str_replace( | 
            
                                                                                                            
                            
            
                                    
            
            
                | 79 |  |  |                     ' ', '-', str_replace( | 
            
                                                                                                            
                            
            
                                    
            
            
                | 80 |  |  |                         '&', | 
            
                                                                                                            
                            
            
                                    
            
            
                | 81 |  |  |                         '', | 
            
                                                                                                            
                            
            
                                    
            
            
                | 82 |  |  |                         $this->string | 
            
                                                                                                            
                            
            
                                    
            
            
                | 83 |  |  |                     ) | 
            
                                                                                                            
                            
            
                                    
            
            
                | 84 |  |  |                 ) | 
            
                                                                                                            
                            
            
                                    
            
            
                | 85 |  |  |             ) | 
            
                                                                                                            
                            
            
                                    
            
            
                | 86 |  |  |         ); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 87 |  |  |     } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 88 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 89 |  |  |     /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 90 |  |  |      * Check if a needle string is in a haystack string. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 91 |  |  |      * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 92 |  |  |      * @param string $needle | 
            
                                                                                                            
                            
            
                                    
            
            
                | 93 |  |  |      * @return bool | 
            
                                                                                                            
                            
            
                                    
            
            
                | 94 |  |  |      */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 95 |  |  |     public function inString(string $needle): bool | 
            
                                                                                                            
                            
            
                                    
            
            
                | 96 |  |  |     { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 97 |  |  |         return strpos($this->string, $needle) !== false; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 98 |  |  |     } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 99 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 100 |  |  |     /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 101 |  |  |      * Determine if the $string is a plain text list of values. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 102 |  |  |      * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 103 |  |  |      *  - if $string is a list, an array of values is returned | 
            
                                                                                                            
                            
            
                                    
            
            
                | 104 |  |  |      *  - if $sting is a string, false is returned | 
            
                                                                                                            
                            
            
                                    
            
            
                | 105 |  |  |      * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 106 |  |  |      * @param array|string[] $separators | 
            
                                                                                                            
                            
            
                                    
            
            
                | 107 |  |  |      * @return bool|false|string[] | 
            
                                                                                                            
                            
            
                                    
            
            
                | 108 |  |  |      */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 109 |  |  |     public function isListString(array $separators = [', ', ' ']) | 
            
                                                                                                            
                            
            
                                    
            
            
                | 110 |  |  |     { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 111 |  |  |         foreach ($separators as $needle) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 112 |  |  |             // If the $needle is found in the $string | 
            
                                                                                                            
                            
            
                                    
            
            
                | 113 |  |  |             // we know the string is a plain text list | 
            
                                                                                                            
                            
            
                                    
            
            
                | 114 |  |  |             // so an array of values is returned | 
            
                                                                                                            
                            
            
                                    
            
            
                | 115 |  |  |             if ($this->inString($needle)) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 116 |  |  |                 return explode($needle, $this->string); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 117 |  |  |             } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 118 |  |  |         } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 119 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 120 |  |  |         // If none of the separators are found | 
            
                                                                                                            
                            
            
                                    
            
            
                | 121 |  |  |         // we know the string is not a list | 
            
                                                                                                            
                            
            
                                    
            
            
                | 122 |  |  |         return false; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 123 |  |  |     } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 124 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 125 |  |  |     /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 126 |  |  |      * Explode a string using an array of delimiters instead of a single string. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 127 |  |  |      * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 128 |  |  |      * @param array|string[] $delimiters | 
            
                                                                                                            
                            
            
                                    
            
            
                | 129 |  |  |      * @param string $replacer | 
            
                                                                                                            
                            
            
                                    
            
            
                | 130 |  |  |      * @return array | 
            
                                                                                                            
                            
            
                                    
            
            
                | 131 |  |  |      */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 132 |  |  |     public function explodeMany(array $delimiters = [',', '&', '/', '-'], string $replacer = '***'): array | 
            
                                                                                                            
                            
            
                                    
            
            
                | 133 |  |  |     { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 134 |  |  |         // Replace all of $delimiters chars with the | 
            
                                                                                                            
                            
            
                                    
            
            
                | 135 |  |  |         // $replacer so that a single delimiter can | 
            
                                                                                                            
                            
            
                                    
            
            
                | 136 |  |  |         // be used to explode the string | 
            
                                                                                                            
                            
            
                                    
            
            
                | 137 |  |  |         $cleaned = str_replace($delimiters, $replacer, $this->string); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 138 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 139 |  |  |         // Use the replacer as the $delimiter | 
            
                                                                                                            
                            
            
                                    
            
            
                | 140 |  |  |         // since it has replaced each of the | 
            
                                                                                                            
                            
            
                                    
            
            
                | 141 |  |  |         // passed $delimiters | 
            
                                                                                                            
                            
            
                                    
            
            
                | 142 |  |  |         $split = explode($replacer, $cleaned); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 143 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 144 |  |  |         // Utilize collection's if laravel/framework is installed | 
            
                                                                                                            
                            
            
                                    
            
            
                | 145 |  |  |         if (function_exists('collect')) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 146 |  |  |             // Collect the array of strings | 
            
                                                                                                            
                            
            
                                    
            
            
                | 147 |  |  |             return collect($split) | 
            
                                                                                                            
                            
            
                                    
            
            
                | 148 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 149 |  |  |                 // Remove empty strings from the collection | 
            
                                                                                                            
                            
            
                                    
            
            
                | 150 |  |  |                 ->filter(function (string $item) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 151 |  |  |                     return strlen($item) > 0; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 152 |  |  |                 }) | 
            
                                                                                                            
                            
            
                                    
            
            
                | 153 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 154 |  |  |                 // Trim the remaining strings in the collection | 
            
                                                                                                            
                            
            
                                    
            
            
                | 155 |  |  |                 ->map(function (string $item) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 156 |  |  |                     return trim($item); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 157 |  |  |                 }) | 
            
                                                                                                            
                            
            
                                    
            
            
                | 158 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 159 |  |  |                 // Encode as array | 
            
                                                                                                            
                            
            
                                    
            
            
                | 160 |  |  |                 ->toArray(); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 161 |  |  |         } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 162 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 163 |  |  |         // Use built in array functions | 
            
                                                                                                            
                            
            
                                    
            
            
                | 164 |  |  |         else { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 165 |  |  |             // Remove empty strings from the collection | 
            
                                                                                                            
                            
            
                                    
            
            
                | 166 |  |  |             $filtered = array_filter($split, function (string $item) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 167 |  |  |                 return strlen($item) > 0; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 168 |  |  |             }); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 169 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 170 |  |  |             // Trim the remaining strings in the collection | 
            
                                                                                                            
                            
            
                                    
            
            
                | 171 |  |  |             return  array_map(function (string $item) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 172 |  |  |                 return trim($item); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 173 |  |  |             }, $filtered); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 174 |  |  |         } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 175 |  |  |     } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 176 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 177 |  |  |     /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 178 |  |  |      * Add whitespace padding to a string. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 179 |  |  |      * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 180 |  |  |      * @param int $amount | 
            
                                                                                                            
                            
            
                                    
            
            
                | 181 |  |  |      * @param string $pad | 
            
                                                                                                            
                            
            
                                    
            
            
                | 182 |  |  |      * @param bool $front add whitespace to 'front' of the string | 
            
                                                                                                            
                            
            
                                    
            
            
                | 183 |  |  |      * @param bool $back add whitespace to the 'back' of the string | 
            
                                                                                                            
                            
            
                                    
            
            
                | 184 |  |  |      * @return string | 
            
                                                                                                            
                            
            
                                    
            
            
                | 185 |  |  |      */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 186 |  |  |     public function whitespacePad(int $amount = 1, | 
            
                                                                                                            
                            
            
                                    
            
            
                | 187 |  |  |                                   string $pad = ' ', | 
            
                                                                                                            
                            
            
                                    
            
            
                | 188 |  |  |                                   bool $front = true, | 
            
                                                                                                            
                            
            
                                    
            
            
                | 189 |  |  |                                   bool $back = true) | 
            
                                                                                                            
                            
            
                                    
            
            
                | 190 |  |  |     { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 191 |  |  |         // Multiple $pad chars by $amount | 
            
                                                                                                            
                            
            
                                    
            
            
                | 192 |  |  |         $whitespace = str_repeat($pad, $amount); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 193 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 194 |  |  |         // Return string with padding | 
            
                                                                                                            
                            
            
                                    
            
            
                | 195 |  |  |         return ($front ? $whitespace : '') . $this->string . ($back ? $whitespace : ''); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 196 |  |  |     } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 197 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 198 |  |  |     /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 199 |  |  |      * Add whitespace padding to only the 'back' of the string. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 200 |  |  |      * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 201 |  |  |      * @param int $amount | 
            
                                                                                                            
                            
            
                                    
            
            
                | 202 |  |  |      * @param string $pad | 
            
                                                                                                            
                            
            
                                    
            
            
                | 203 |  |  |      * @return string | 
            
                                                                                                            
                            
            
                                    
            
            
                | 204 |  |  |      */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 205 |  |  |     public function whitespacePadBack(int $amount = 1, string $pad = ' ') | 
            
                                                                                                            
                            
            
                                    
            
            
                | 206 |  |  |     { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 207 |  |  |         return $this->whitespacePad($amount, $pad, false, true); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 208 |  |  |     } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 209 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 210 |  |  |     /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 211 |  |  |      * Add whitespace padding to only the 'back' of the string. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 212 |  |  |      * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 213 |  |  |      * @param int $amount | 
            
                                                                                                            
                            
            
                                    
            
            
                | 214 |  |  |      * @param string $pad | 
            
                                                                                                            
                            
            
                                    
            
            
                | 215 |  |  |      * @return string | 
            
                                                                                                            
                            
            
                                    
            
            
                | 216 |  |  |      */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 217 |  |  |     function whitespacePadFront(int $amount = 1, string $pad = ' ') | 
                            
                    |  |  |  | 
                                                                                        
                                                                                     | 
            
                                                                                                            
                            
            
                                    
            
            
                | 218 |  |  |     { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 219 |  |  |         return $this->whitespacePad($amount, $pad, true, false); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 220 |  |  |     } | 
            
                                                                                                            
                                                                
            
                                    
            
            
                | 221 |  |  | } | 
            
                                                        
            
                                    
            
            
                | 222 |  |  |  | 
            
                        
Adding explicit visibility (
private,protected, orpublic) is generally recommend to communicate to other developers how, and from where this method is intended to be used.