PHP URL Chinese encoding cn_urlencode function _php Tutorial

PHP in the code for the URL, you can use UrlEncode () or Rawurlencode (), the difference is that the former space is encoded as \ ' +\ ', and the latter to encode the space as \ '%20\ ', but it should be noted that the encoding should be only part of the URL encoding, Otherwise, the colon and backslash in the URL are also escaped. Here is a detailed explanation:

String UrlEncode (String str)

Returns a string, in addition to-_, in this string. All non-alphanumeric characters are replaced with a percent sign (%) followed by a two-digit hexadecimal number, and a space is encoded as a plus (+).

Example 1:urlencode function differs from Rawurlencode function

The code is as follows	Copy Code
$str = ' blog '; echo UrlEncode ($STR); echo " "; echo Rawurlencode ($STR); ?>

URL Result:

%b2%a9+%bf%cd
%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;

The code is as follows	Copy Code
$url = ' http://www.baidu.com/s?wd= blog '; $arr =explode (' = ', $url); $url = $arr [0]. ' = '. Rawurlencode ($arr [1]); echo $url; ?>

Results:

Http://www.baidu.com/s?wd=%E5%8D%9A%20%E5%AE%A2

Perhaps use the following URL encoding function

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), $url);//translate translation into Chinese } if (Strpos ($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

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