本文给大家分享一个PHP解密Unicode及Escape加密字符串函数
<?phpfunction uni_decode($s) {preg_match_all("/([0-9]{2,5});/", $s, $html_uni);preg_match_all("/[\\%]u([0-9a-f]{4})/ie", $s, $js_uni);$source = array_merge($html_uni[0], $js_uni[0]);$js = array();for($i=0;$i<count($js_uni[1]);$i++) {$js[] = hexdec($js_uni[1][$i]);}$utf8 = array_merge($html_uni[1], $js);$code = $s;for($j=0;$j<count($utf8);$j++) {$code = str_replace($source[$j], unicode2utf8($utf8[$j]), $code);}return $code;//$s;//preg_replace("/\u([0-9a-f]{4})/ie", "chr(hexdec("\1"))", $s);}function unicode2utf8($c) {$str="";if ($c < 0x80) { $str.=chr($c);} else if ($c < 0x800) { $str.=chr(0xc0 | $c>>6); $str.=chr(0x80 | $c & 0x3f);} else if ($c < 0x10000) { $str.=chr(0xe0 | $c>>12); $str.=chr(0x80 | $c>>6 & 0x3f); $str.=chr(0x80 | $c & 0x3f);} else if ($c < 0x200000) { $str.=chr(0xf0 | $c>>18); $str.=chr(0x80 | $c>>12 & 0x3f); $str.=chr(0x80 | $c>>6 & 0x3f); $str.=chr(0x80 | $c & 0x3f);}return $str;}$str="%u5927%u5BB6%u597D%uFF0C我是孤魂!<br />u8FD9u662Fu6D4Bu8BD5u6587u672CuFF01";echo uni_decode($str); // 大家好,我是孤魂!这是测试文本!在网上搜索一把,很多用php实现的escape函数,大同小异
function phpescape($str){ preg_match_all("/[x80-xff].|[x01-x7f]+/",$str,$newstr); $ar = $newstr[0]; foreach($ar as $k=>$v){ if(ord($ar[$k])>=127){ $tmpString=bin2hex(iconv("GBK","ucs-2",$v)); if (!eregi("WIN",PHP_OS)){ $tmpString = substr($tmpString,2,2).substr($tmpString,0,2); } $reString.="%u".$tmpString; } else { $reString.= rawurlencode($v); } } return $reString; } 以上所述就是本文的全部内容了,希望大家能够喜欢。