本文给大家分享一个PHP解密Unicode及Escape加密字符串函数
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PHP
function uni_decode($s) {
preg_match_all('/\&\#([0-9]{2,5})\;/',$s,$html_uni);
preg_match_all('/[\\\%]u([0-9a-f]{4})/ie',$js_uni);
$source = array_merge($html_uni[0],$js_uni[0]);
$js = array();
for($i=0;$ifunction unicode2utf8($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;
}
$str="";
if ($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;
}
$str='%u5927%u5BB6%u597D%uFF0C我是孤魂！
\u8FD9\u662F\u6D4B\u8BD5\u6587\u672C\uFF01';
echo uni_decode($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
$v){
if(ord($ar[$k])>=127){
$tmpString=bin2hex(iconv("GBK","ucs-2",$v));
if (!eregi("WIN",PHP_OS)){
$tmpString = substr($tmpString,2,2).substr($tmpString,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。
原文链接：https://www.f2er.com/php/21913.html