PHP url Chinese encoding cn_urlencode function_PHP tutorial

To encode URLs in PHP, you can use urlencode() or rawurlencode(). The difference between the two is that the former encodes spaces as '+', while the latter encodes spaces as '%20', but it should be noted that , you should only encode part of the URL when encoding, otherwise colons and backslashes in the URL will also be escaped. The following is a detailed explanation:

string urlencode ( string str)

Returns a string in which all non-alphanumeric characters except -_. will be replaced with a percent sign (%) followed by two hexadecimal digits, and spaces are encoded as plus signs ( +).

Example 1: The difference between urlencode function and rawurlencode function

The code is as follows

代码如下	复制代码
$str='博 客'; echo urlencode($str); echo " ";     echo rawurlencode($str); ?>

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$str='blog';
echo urlencode($str);
echo "
"; echo rawurlencode($str);

代码如下	复制代码
$url='http://www.baidu.com/s?wd=博 客'; $arr=explode('=',$url); $url=$arr[0].'='.rawurlencode($arr[1]); echo $url; ?>

?>

url result:

%B2%A9+%BF%CD

代码如下

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function cn_urlencode($url){ $pregstr = "/[x{4e00}-x{9fa5}]+/u";//UTF-8中文正则 if(preg_match_all($pregstr,$url,$matchArray)){//匹配中文，返回数组 foreach($matchArray[0] as $key=>$val){             $url=str_replace($val, urlencode($val), $url);//将转译替换中文         }         if(strpos($url,' ')){//若存在空格             $url=str_replace(' ','%20',$url);         }     }     return $url; }     echo  cn_urlencode($url); ?>

%B2%A9%20%BF%CD Example 2: URL Chinese encoding method

From url: "http://www.baidu.com/s?wd=blog" to url: http://www.baidu.com/s?wd=%E5%8D%9A%20%E5%AE %A2;

$url='http://www.baidu.com/s?wd=blog';

$arr=explode('=',$url);

$url=$arr[0].'='.rawurlencode($arr[1]);

echo $url; ?> Result: http://www.baidu.com/s?wd=%E5%8D%9A%20%E5%AE%A2 Maybe use the following url encoding function

The code is as follows	Copy code

The code is as follows

Copy code

function cn_urlencode($url){ $pregstr = "/[x{4e00}-x{9fa5}]+/u";//UTF-8 Chinese regular If(preg_match_all($pregstr,$url,$matchArray)){//Match Chinese, return array<🎜>          foreach($matchArray[0] as $key=>$val){                $url=str_replace($val, urlencode($val), $url);//Replace translation with Chinese } If(strpos($url,' ')){//If there are spaces                 $url=str_replace(' ','%20',$url); } } Return $url; } echo cn_urlencode($url); ?> url result: http://www.baidu.com/s?wd=%E5%8D%9A%20%E5%AE%A2 http://www.bkjia.com/PHPjc/629031.htmlwww.bkjia.comtruehttp: //www.bkjia.com/PHPjc/629031.htmlTechArticleTo encode URLs in PHP, you can use urlencode() or rawurlencode(). The difference between the two is that the former Spaces are encoded as '+', while the latter encodes spaces as '%20', but it should be noted...