What to do if php intercepts garbled Chinese characters

In PHP, you can use the PHP built-in function "mb_substr()" to solve the problem of intercepting garbled Chinese characters. The syntax of this function is "mb_substr($str, $start, $length, $encoding)". The parameter "$str" represents the Chinese string that needs to be truncated.

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Solution to the garbled Chinese character string intercepted by PHP

When there is a need to intercept a string, the first thing that comes to mind is substr(), but there will be problems with garbled characters. So if you want to intercept a Chinese string, you can use PHP's built-in function Chinese interception: mb_substr (), this is

mb_substr( $str, $start, $length, $encoding )

$str: the Chinese string that needs to be intercepted;

$start: intercept the start parameter, starting at 0;

$length: The number of words to be intercepted;

$encoding: web page encoding, such as UTF-8, GB2312, GBK;

In addition, a function to obtain the length of the Chinese string is attached to obtain the Chinese length: mb_strlen()

mb_strlen( $str, $encoding )
$str : 中文字符串 ;
$encoding : 网页编码，如UTF-8,GB2312,GBK;

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