mb_substr

(PHP 4 >= 4.0.6, PHP 5)

mb_substr — Get part of string

说明

string mb_substr ( string $str , int $start [, int $length [, string $encoding ]] )

Performs a multi-byte safe substr() operation based on number of characters. Position is counted from the beginning of str. First character's position is 0. Second character position is 1, and so on.

参数

str: The string being checked.
start: The first position used in str.
length: The maximum length of the returned string.
encoding: encoding 参数为字符编码。如果省略，则使用内部字符编码。

返回值

mb_substr() returns the portion of str specified by the start and length parameters.

参见

mb_strcut() - Get part of string
mb_internal_encoding() - Set/Get internal character encoding