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PHP解密Unicode及Escape加密字符串

WBOY
WBOYOriginal
2016-06-13 09:04:331293browse

PHP解密Unicode及Escape加密字符串

   在json中不支持中文,用它传送中文数据就会出现数据丢失或者乱码,必须在传送前对要发送的字符串进行编码,由于传送过去需要用js进行数据解析,考虑 到js中有unescape函数,故若在php中有个escape函数,对数据进行编码,在客户端用unescape进行 解码,这样就会方便很多。

  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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function 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

$js[] = hexdec($js_uni[1][$i]);

}

$utf8 = array_merge($html_uni[1], $js);

$code = $s;

for($j=0;$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

$str.=chr($c);

} else if ($c

$str.=chr(0xc0 | $c>>6);

$str.=chr(0x80 | $c & 0x3f);

} else if ($c

$str.=chr(0xe0 | $c>>12);

$str.=chr(0x80 | $c>>6 & 0x3f);

$str.=chr(0x80 | $c & 0x3f);

} else if ($c

$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

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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。

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