sWortliste = __DIR__ . '/' . $this -> sWortliste; # SpamRegex: Eintrag beginnt mit Link: $arURLRegex[] = '^ *https{0,1}:\/\/'; $arURLRegex[] = '^ * arURLRegex = $arURLRegex; #5 Sonderzeichen aufeinander: $arHexRegex[] = '&#[0-9a-f]{2,4};&#[0-9a-f]{2,4};&#[0-9a-f]{2,4};&#[0-9a-f]{2,4};&#[0-9a-f]{2,4};'; $this -> arHexRegex = $arHexRegex; #Spam-Begriffe: $ar = file( $this -> sWortliste ); foreach ( $ar as $wort ) { $wort = trim( $wort ); if ( '' !== $wort ) { $arSpamRegex[] = strtolower( $wort ); } } $this -> arSpamRegex = $arSpamRegex; #Ersetzungen: $arReplacements['i'] = '########I#######'; $arReplacements['1'] = '########I#######'; $arReplacements['l'] = '########I#######'; $arReplacements['o'] = '########O#######'; $arReplacements['a'] = '########A#######'; $arReplacements['c'] = '########C#######'; $arReplacements['z'] = '########C#######'; $arReplacements['########I#######'] = '[il1]'; $arReplacements['########O#######'] = '[o0]'; $arReplacements['########A#######'] = '[a@]'; $arReplacements['########C#######'] = '[czxs]'; $this -> arReplacements = $arReplacements; } function detect( $str ) { $str = trim( strtolower( $str ) ); $str = str_replace("\t", " ", $str ); foreach ( $this -> arURLRegex as $strURLRegex ) { if ( preg_match( '#' . str_replace( '#', '\#', $strURLRegex ) . '#', $str ) ) { return true; } } foreach ( $this -> arHexRegex as $strHexRegex ) { if ( preg_match( '#' . str_replace( '#', '\#', $strHexRegex ) . '#', $str ) ) { return true; } } $arKeys = array_keys( $this -> arReplacements ); foreach ( $this -> arSpamRegex as $strSpamRegex ) { foreach ( $arKeys as $key ) { $strSpamRegex = trim( str_replace( $key, $this -> arReplacements[$key], $strSpamRegex ) ); } if ( preg_match( '#' . str_replace( '#', '\#', $strSpamRegex ) . '#', $str ) ) { return true; } } return false; } }