| 1 |  |  | <?php | 
            
                                                                                                            
                            
            
                                    
            
            
                | 2 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 3 |  |  | namespace Egulias\EmailValidator; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 4 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 5 |  |  | use Doctrine\Common\Lexer\AbstractLexer; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 6 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 7 |  |  | class EmailLexer extends AbstractLexer | 
            
                                                                                                            
                            
            
                                    
            
            
                | 8 |  |  | { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 9 |  |  |     //ASCII values | 
            
                                                                                                            
                            
            
                                    
            
            
                | 10 |  |  |     const C_DEL              = 127; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 11 |  |  |     const C_NUL              = 0; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 12 |  |  |     const S_AT               = 64; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 13 |  |  |     const S_BACKSLASH        = 92; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 14 |  |  |     const S_DOT              = 46; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 15 |  |  |     const S_DQUOTE           = 34; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 16 |  |  |     const S_OPENPARENTHESIS  = 49; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 17 |  |  |     const S_CLOSEPARENTHESIS = 261; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 18 |  |  |     const S_OPENBRACKET      = 262; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 19 |  |  |     const S_CLOSEBRACKET     = 263; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 20 |  |  |     const S_HYPHEN           = 264; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 21 |  |  |     const S_COLON            = 265; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 22 |  |  |     const S_DOUBLECOLON      = 266; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 23 |  |  |     const S_SP               = 267; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 24 |  |  |     const S_HTAB             = 268; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 25 |  |  |     const S_CR               = 269; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 26 |  |  |     const S_LF               = 270; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 27 |  |  |     const S_IPV6TAG          = 271; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 28 |  |  |     const S_LOWERTHAN        = 272; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 29 |  |  |     const S_GREATERTHAN      = 273; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 30 |  |  |     const S_COMMA            = 274; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 31 |  |  |     const S_SEMICOLON        = 275; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 32 |  |  |     const S_OPENQBRACKET     = 276; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 33 |  |  |     const S_CLOSEQBRACKET    = 277; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 34 |  |  |     const S_SLASH            = 278; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 35 |  |  |     const S_EMPTY            = null; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 36 |  |  |     const GENERIC            = 300; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 37 |  |  |     const CRLF               = 301; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 38 |  |  |     const INVALID            = 302; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 39 |  |  |     const ASCII_INVALID_FROM = 127; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 40 |  |  |     const ASCII_INVALID_TO   = 199; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 41 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 42 |  |  |     /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 43 |  |  |      * US-ASCII visible characters not valid for atext (@link http://tools.ietf.org/html/rfc5322#section-3.2.3) | 
            
                                                                                                            
                            
            
                                    
            
            
                | 44 |  |  |      * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 45 |  |  |      * @var array | 
            
                                                                                                            
                            
            
                                    
            
            
                | 46 |  |  |      */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 47 |  |  |     protected $charValue = array( | 
            
                                                                                                            
                            
            
                                    
            
            
                | 48 |  |  |         '('    => self::S_OPENPARENTHESIS, | 
            
                                                                                                            
                            
            
                                    
            
            
                | 49 |  |  |         ')'    => self::S_CLOSEPARENTHESIS, | 
            
                                                                                                            
                            
            
                                    
            
            
                | 50 |  |  |         '<'    => self::S_LOWERTHAN, | 
            
                                                                                                            
                            
            
                                    
            
            
                | 51 |  |  |         '>'    => self::S_GREATERTHAN, | 
            
                                                                                                            
                            
            
                                    
            
            
                | 52 |  |  |         '['    => self::S_OPENBRACKET, | 
            
                                                                                                            
                            
            
                                    
            
            
                | 53 |  |  |         ']'    => self::S_CLOSEBRACKET, | 
            
                                                                                                            
                            
            
                                    
            
            
                | 54 |  |  |         ':'    => self::S_COLON, | 
            
                                                                                                            
                            
            
                                    
            
            
                | 55 |  |  |         ';'    => self::S_SEMICOLON, | 
            
                                                                                                            
                            
            
                                    
            
            
                | 56 |  |  |         '@'    => self::S_AT, | 
            
                                                                                                            
                            
            
                                    
            
            
                | 57 |  |  |         '\\'   => self::S_BACKSLASH, | 
            
                                                                                                            
                            
            
                                    
            
            
                | 58 |  |  |         '/'    => self::S_SLASH, | 
            
                                                                                                            
                            
            
                                    
            
            
                | 59 |  |  |         ','    => self::S_COMMA, | 
            
                                                                                                            
                            
            
                                    
            
            
                | 60 |  |  |         '.'    => self::S_DOT, | 
            
                                                                                                            
                            
            
                                    
            
            
                | 61 |  |  |         '"'    => self::S_DQUOTE, | 
            
                                                                                                            
                            
            
                                    
            
            
                | 62 |  |  |         '-'    => self::S_HYPHEN, | 
            
                                                                                                            
                            
            
                                    
            
            
                | 63 |  |  |         '::'   => self::S_DOUBLECOLON, | 
            
                                                                                                            
                            
            
                                    
            
            
                | 64 |  |  |         ' '    => self::S_SP, | 
            
                                                                                                            
                            
            
                                    
            
            
                | 65 |  |  |         "\t"   => self::S_HTAB, | 
            
                                                                                                            
                            
            
                                    
            
            
                | 66 |  |  |         "\r"   => self::S_CR, | 
            
                                                                                                            
                            
            
                                    
            
            
                | 67 |  |  |         "\n"   => self::S_LF, | 
            
                                                                                                            
                            
            
                                    
            
            
                | 68 |  |  |         "\r\n" => self::CRLF, | 
            
                                                                                                            
                            
            
                                    
            
            
                | 69 |  |  |         'IPv6' => self::S_IPV6TAG, | 
            
                                                                                                            
                            
            
                                    
            
            
                | 70 |  |  |         '{'    => self::S_OPENQBRACKET, | 
            
                                                                                                            
                            
            
                                    
            
            
                | 71 |  |  |         '}'    => self::S_CLOSEQBRACKET, | 
            
                                                                                                            
                            
            
                                    
            
            
                | 72 |  |  |         ''     => self::S_EMPTY, | 
            
                                                                                                            
                            
            
                                    
            
            
                | 73 |  |  |         '\0'   => self::C_NUL, | 
            
                                                                                                            
                            
            
                                    
            
            
                | 74 |  |  |     ); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 75 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 76 |  |  |     protected $hasInvalidTokens = false; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 77 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 78 |  |  |     protected $previous; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 79 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 80 | 226 |  |     public function __construct() | 
            
                                                                                                            
                            
            
                                    
            
            
                | 81 |  |  |     { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 82 | 226 |  |         $this->reset(); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 83 | 226 |  |     } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 84 | 226 |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 85 |  |  |     public function reset() | 
            
                                                                                                            
                            
            
                                    
            
            
                | 86 | 52 |  |     { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 87 |  |  |         $this->hasInvalidTokens = false; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 88 | 52 |  |         parent::reset(); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 89 |  |  |         $this->previous = $this->token = ['type' => null, 'value' => '', 'position' => 0]; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 90 |  |  |     } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 91 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 92 |  |  |     public function hasInvalidTokens() | 
            
                                                                                                            
                            
            
                                    
            
            
                | 93 |  |  |     { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 94 |  |  |         return $this->hasInvalidTokens; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 95 |  |  |     } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 96 | 48 |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 97 |  |  |     /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 98 | 48 |  |      * @param string $type | 
            
                                                                                                            
                            
            
                                    
            
            
                | 99 | 48 |  |      * @throws \UnexpectedValueException | 
            
                                                                                                            
                            
            
                                    
            
            
                | 100 |  |  |      * @return boolean | 
            
                                                                                                            
                            
            
                                    
            
            
                | 101 | 48 |  |      */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 102 | 7 |  |     public function find($type) | 
            
                                                                                                            
                            
            
                                    
            
            
                | 103 |  |  |     { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 104 | 41 |  |         $search = clone $this; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 105 |  |  |         $search->skipUntil($type); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 106 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 107 |  |  |         if (!$search->lookahead) { | 
                            
                    |  |  |  | 
                                                                                        
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                | 108 |  |  |             throw new \UnexpectedValueException($type . ' not found'); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 109 |  |  |         } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 110 |  |  |         return true; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 111 |  |  |     } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 112 | 119 |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 113 |  |  |     /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 114 | 119 |  |      * getPrevious | 
            
                                                                                                            
                            
            
                                    
            
            
                | 115 |  |  |      * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 116 |  |  |      * @return array token | 
            
                                                                                                            
                            
            
                                    
            
            
                | 117 |  |  |      */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 118 |  |  |     public function getPrevious() | 
            
                                                                                                            
                            
            
                                    
            
            
                | 119 |  |  |     { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 120 |  |  |         return $this->previous; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 121 |  |  |     } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 122 | 225 |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 123 |  |  |     /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 124 | 225 |  |      * moveNext | 
            
                                                                                                            
                            
            
                                    
            
            
                | 125 |  |  |      * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 126 | 225 |  |      * @return boolean | 
            
                                                                                                            
                            
            
                                    
            
            
                | 127 |  |  |      */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 128 |  |  |     public function moveNext() | 
            
                                                                                                            
                            
            
                                    
            
            
                | 129 |  |  |     { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 130 |  |  |         $this->previous = $this->token; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 131 |  |  |         $hasNext = parent::moveNext(); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 132 |  |  |         $this->token = $this->token ?: ['type' => null, 'value' => '', 'position' => 0]; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 133 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 134 | 1 |  |         return $hasNext; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 135 |  |  |     } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 136 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 137 | 1 |  |     /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 138 | 1 |  |      * Lexical catchable patterns. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 139 | 1 |  |      * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 140 | 1 |  |      * @return string[] | 
            
                                                                                                            
                            
            
                                    
            
            
                | 141 | 1 |  |      */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 142 | 1 |  |     protected function getCatchablePatterns() | 
            
                                                                                                            
                            
            
                                    
            
            
                | 143 | 1 |  |     { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 144 | 1 |  |         return array( | 
            
                                                                                                            
                            
            
                                    
            
            
                | 145 |  |  |             '[a-zA-Z_]+[46]?', //ASCII and domain literal | 
            
                                                                                                            
                            
            
                                    
            
            
                | 146 |  |  |             '[^\x00-\x7F]',  //UTF-8 | 
            
                                                                                                            
                            
            
                                    
            
            
                | 147 |  |  |             '[0-9]+', | 
            
                                                                                                            
                            
            
                                    
            
            
                | 148 |  |  |             '\r\n', | 
            
                                                                                                            
                            
            
                                    
            
            
                | 149 |  |  |             '::', | 
            
                                                                                                            
                            
            
                                    
            
            
                | 150 |  |  |             '\s+?', | 
            
                                                                                                            
                            
            
                                    
            
            
                | 151 |  |  |             '.', | 
            
                                                                                                            
                            
            
                                    
            
            
                | 152 | 1 |  |             ); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 153 |  |  |     } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 154 | 1 |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 155 |  |  |     /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 156 |  |  |      * Lexical non-catchable patterns. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 157 |  |  |      * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 158 |  |  |      * @return string[] | 
            
                                                                                                            
                                                                
            
                                    
            
            
                | 159 |  |  |      */ | 
            
                                                                        
                            
            
                                    
            
            
                | 160 |  |  |     protected function getNonCatchablePatterns() | 
            
                                                                        
                            
            
                                    
            
            
                | 161 |  |  |     { | 
            
                                                                        
                            
            
                                    
            
            
                | 162 |  |  |         return array('[\xA0-\xff]+'); | 
            
                                                                        
                            
            
                                    
            
            
                | 163 |  |  |     } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 164 | 224 |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 165 |  |  |     /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 166 | 224 |  |      * Retrieve token type. Also processes the token value if necessary. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 167 | 2 |  |      * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 168 |  |  |      * @param string $value | 
            
                                                                                                            
                            
            
                                    
            
            
                | 169 |  |  |      * @throws \InvalidArgumentException | 
            
                                                                                                            
                            
            
                                    
            
            
                | 170 | 223 |  |      * @return integer | 
            
                                                                                                            
                            
            
                                    
            
            
                | 171 | 156 |  |      */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 172 |  |  |     protected function getType(&$value) | 
            
                                                                                                            
                            
            
                                    
            
            
                | 173 |  |  |     { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 174 | 196 |  |         if ($this->isNullType($value)) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 175 | 62 |  |             return self::C_NUL; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 176 | 62 |  |         } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 177 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 178 |  |  |         if ($this->isValid($value)) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 179 | 134 |  |             return $this->charValue[$value]; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 180 |  |  |         } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 181 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 182 | 223 |  |         if ($this->isUTF8Invalid($value)) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 183 |  |  |             $this->hasInvalidTokens = true; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 184 | 223 |  |             return self::INVALID; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 185 | 156 |  |         } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 186 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 187 |  |  |         return  self::GENERIC; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 188 | 196 |  |     } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 189 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 190 |  |  |     protected function isValid($value) | 
            
                                                                                                            
                            
            
                                    
            
            
                | 191 |  |  |     { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 192 |  |  |         if (isset($this->charValue[$value])) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 193 |  |  |             return true; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 194 |  |  |         } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 195 | 224 |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 196 |  |  |         return false; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 197 | 224 |  |     } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 198 | 2 |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 199 |  |  |     /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 200 |  |  |      * @param string $value | 
            
                                                                                                            
                            
            
                                    
            
            
                | 201 | 223 |  |      * @return bool | 
            
                                                                                                            
                            
            
                                    
            
            
                | 202 |  |  |      */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 203 |  |  |     protected function isNullType($value) | 
            
                                                                                                            
                            
            
                                    
            
            
                | 204 |  |  |     { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 205 |  |  |         if ($value === "\0") { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 206 |  |  |             return true; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 207 |  |  |         } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 208 | 196 |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 209 |  |  |         return false; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 210 | 196 |  |     } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 211 | 62 |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 212 |  |  |     /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 213 |  |  |      * @param string $value | 
            
                                                                                                            
                            
            
                                    
            
            
                | 214 | 134 |  |      * @return bool | 
            
                                                                                                            
                            
            
                                    
            
            
                | 215 |  |  |      */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 216 |  |  |     protected function isUTF8Invalid($value) | 
            
                                                                                                            
                            
            
                                    
            
            
                | 217 | 1 |  |     { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 218 |  |  |         if (preg_match('/\p{Cc}+/u', $value)) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 219 | 1 |  |             return true; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 220 |  |  |         } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 221 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 222 |  |  |         return false; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 223 |  |  |     } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 224 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 225 |  |  |     protected function getModifiers() | 
            
                                                                                                            
                            
            
                                    
            
            
                | 226 |  |  |     { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 227 |  |  |         return 'iu'; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 228 |  |  |     } | 
            
                                                                                                            
                                                                
            
                                    
            
            
                | 229 |  |  | } | 
            
                                                        
            
                                    
            
            
                | 230 |  |  |  | 
            
                        
This check marks implicit conversions of arrays to boolean values in a comparison. While in PHP an empty array is considered to be equal (but not identical) to false, this is not always apparent.
Consider making the comparison explicit by using
empty(..)or! empty(...)instead.