Mb_substr _php Tutorial on intercepting small knowledge of Chinese

Mb_substr function is an upgraded version of the SUBSTR function, MB_SUBSTR supports Chinese interception and does not appear garbled problem, let me introduce mb_substr basic knowledge.

Cases

The code is as follows	Copy Code
$str = ' so that my string will not have garbled ^_^ '; echo "MB_SUBSTR:". Mb_substr ($str, 0, 7, ' utf-8′); Result: so that my word echo " ”; echo "Mb_strcut:". Mb_strcut ($str, 0, 6, ' utf-8′); Result: this ?>

As can be seen from the above example, Mb_substr is to divide characters by word, while mb_strcut splits characters by Byte, but does not produce a half-character phenomenon.

In the actual use of the process needs and mb_strlen with the use of Mb_strlen, the use of strlen similar, just one more encoding parameters: Mb_strlen ("I am to be computed length character", "GBK"); the result is 11.

Detailed examples of use:

For example, a string of more than 20 needs to be intercepted:

The code is as follows	Copy Code
if (Mb_strlen ($str, "GBK") >20) { $str = mb_substr ($str, 0, "GBK"); }

Attention:

Make sure you have php_mbstring.dll this file under your windows/system32, and don't copy it into Windows/system32 from your PHP installation directory extensions.

2. Find php.ini in Windows directory Open edit, search Mbstring.dll, find
Extension=php_mbstring.dll the front of the number, so that the MB_SUBSTR function can take effect.

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