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: The encoding parameter is the character encoding. If it is omitted, the internal character encoding value will be used.

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