Differences between functions of the mb_series function and functions of common characters.

Differences between functions of the mb_series function and functions of common characters.

The mb function isFunction Extension for processing text based on the encoding format.

Modify the/etc/php. ini configuration file and add extension = php_mbstring.so.

 

Use the substr function that is most commonly used as an example. Clear at a glance.

Example:

1 <? Php 2 // phpinfo (); 3 $ str = 'abcdef '; 4 echo strlen ($ str); // 6 5 echo' <br/> '; 6 echo substr ($ str, 1, 2); // bc 7 echo '<br/>'; 8 9 $ str2 = 'Who am I AB '; 10 echo substr ($ str2, 2, 2); // �� 11 echo '<br/>'; 12 echo mb_substr ($ str2, 2, 2, 'utf-8 '); // who a13 echo '<br/>'; 14 echo strlen ($ str2); // 1115 echo '<br/>'; 16 echo mb_strlen ($ str2, 'utf-8'); // 517 echo '<br/> ';

 

You can see lines 10th and 12 clearly.