PHP下escape解码函数的实现方法
2019/6/30 15:27:09
本文主要是介绍PHP下escape解码函数的实现方法,对大家解决编程问题具有一定的参考价值,需要的程序猿们随着小编来一起学习吧!
GB2312编码:
function unescape($str) {
$str = rawurldecode($str);
preg_match_all("/%u.{4}|&#x.{4};|&#d+;|.+/U",$str,$r);
$ar = $r[0];
foreach($ar as $k=>$v) {
if(substr($v,0,2) == "%u")
$ar[$k] = iconv("UCS-2","GBK",pack("H4",substr($v,-4)));
elseif(substr($v,0,3) == "&#x")
$ar[$k] = iconv("UCS-2","GBK",pack("H4",substr($v,3,-1)));
elseif(substr($v,0,2) == "&#") {
$ar[$k] = iconv("UCS-2","GBK",pack("n",substr($v,2,-1)));
}
}
return join("",$ar);
}
UTF8编码:
function unescape($str){
$ret = '';
$len = strlen($str);
for ($i = 0; $i < $len; $i++){
if ($str[$i] == '%' && $str[$i+1] == 'u'){
$val = hexdec(substr($str, $i+2, 4));
if ($val < 0x7f) $ret .= chr($val);
else if($val < 0x800) $ret .= chr(0xc0|($val>>6)).chr(0x80|($val&0x3f));
else $ret .= chr(0xe0|($val>>12)).chr(0x80|(($val>>6)&0x3f)).chr(0x80|($val&0x3f));
$i += 5;
}
else if ($str[$i] == '%'){
$ret .= urldecode(substr($str, $i, 3));
$i += 2;
}
else $ret .= $str[$i];
}
return $ret;
}
复制代码 代码如下:
function unescape($str) {
$str = rawurldecode($str);
preg_match_all("/%u.{4}|&#x.{4};|&#d+;|.+/U",$str,$r);
$ar = $r[0];
foreach($ar as $k=>$v) {
if(substr($v,0,2) == "%u")
$ar[$k] = iconv("UCS-2","GBK",pack("H4",substr($v,-4)));
elseif(substr($v,0,3) == "&#x")
$ar[$k] = iconv("UCS-2","GBK",pack("H4",substr($v,3,-1)));
elseif(substr($v,0,2) == "&#") {
$ar[$k] = iconv("UCS-2","GBK",pack("n",substr($v,2,-1)));
}
}
return join("",$ar);
}
UTF8编码:
复制代码 代码如下:
function unescape($str){
$ret = '';
$len = strlen($str);
for ($i = 0; $i < $len; $i++){
if ($str[$i] == '%' && $str[$i+1] == 'u'){
$val = hexdec(substr($str, $i+2, 4));
if ($val < 0x7f) $ret .= chr($val);
else if($val < 0x800) $ret .= chr(0xc0|($val>>6)).chr(0x80|($val&0x3f));
else $ret .= chr(0xe0|($val>>12)).chr(0x80|(($val>>6)&0x3f)).chr(0x80|($val&0x3f));
$i += 5;
}
else if ($str[$i] == '%'){
$ret .= urldecode(substr($str, $i, 3));
$i += 2;
}
else $ret .= $str[$i];
}
return $ret;
}
这篇关于PHP下escape解码函数的实现方法的文章就介绍到这儿,希望我们推荐的文章对大家有所帮助,也希望大家多多支持为之网!
- 2024-11-01用php和mysql写无限分类,有哪几种方法-icode9专业技术文章分享
- 2024-10-31php数据分表导出时部分数据无法导出什么原因-icode9专业技术文章分享
- 2024-10-30有经验的 PHP 开发者学习一门新的编程语言,有哪些推荐的有前景的语言-icode9专业技术文章分享
- 2024-10-21php 检测图片是否篡改过-icode9专业技术文章分享
- 2024-10-20fruitcake/php-cors 该怎么使用-icode9专业技术文章分享
- 2024-10-18PHP7.1可以使用哪个版本的swoole-icode9专业技术文章分享
- 2024-10-17php8 执行php -v提示 command not found是什么原因?-icode9专业技术文章分享
- 2024-10-17nginx 怎么配置 php?-icode9专业技术文章分享
- 2024-09-28怎么把PHP程序打包?-icode9专业技术文章分享
- 2024-09-28怎么用Phar打包PHP程序?-icode9专业技术文章分享