PHP mb_substr (), mb_strcut () functions that intercept Chinese string lengths

SUBSTR () function can be used to split the text, but the text to be divided if the inclusion of Chinese characters tend to encounter problems, you can use MB_SUBSTR ()/mb_strcut This function, Mb_substr ()/mb_strcut usage and substr () similar, Just in Mb_substr ()/mb_strcut to add more than one parameter to set the string encoding, but the general server did not open Php_mbstring.dll, need to php.ini in the Php_mbstring.dll to open.

As an example:

<?phpecho mb_substr (' This way my string will not have garbled ^_^ ', 0, 7, ' utf-8′); >

Output: so that my word

<?phpecho mb_strcut (' This way my string will not have garbled ^_^ ', 0, 7, ' utf-8′); >

Output: this

As can be seen from the above example, MB_SUBSTR is the word to divide the characters, and mb_strcut is to divide the characters by Byte, but will not produce a half-character phenomenon ...

The above paragraph is a excerpt from the network, the results are tested by myself.

Personal Understanding:
The Mb_substr () function represents one unit for English or Chinese characters.
The Mb_strcut () function pairs Chinese characters in 3 units, and English is 1 units.

For example:

<?php$str = "Such ABCD Comes", echo "Mb_substr:". Mb_substr ($str, 0, 5, ' utf-8′); echo "<br>", echo "Mb_strcut:". mb_ Strcut ($str, 0, 8, ' utf-8′);? >

The output results are as follows:

MB_SUBSTR: So abcmb_strcut:  so AB

Report:

The difference between strlen and Mb_strlen:

<?php $str = "Chinese a character 1 characters"; echo strlen ($STR); echo "<br/>"; Echo Mb_strlen ($str, ' utf8′);?>

Output Result:

14 6

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