mb_strpos Find position of first occurrence of string in a string


mb_strpos

(PHP 4 >= 4.0.6, PHP 5)

mb_strposFind position of first occurrence of string in a string

说明

int mb_strpos ( string $haystack , string $needle [, int $offset = 0 [, string $encoding ]] )

Finds position of the first occurrence of a string in a string.

Performs a multi-byte safe strpos() operation based on number of characters. The first character's position is 0, the second character position is 1, and so on.

参数

haystack

The string being checked.

needle

The string to find in haystack. In contrast with strpos(), numeric values are not applied as the ordinal value of a character.

offset

The search offset. If it is not specified, 0 is used.

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

Returns the numeric position of the first occurrence of needle in the haystack string. If needle is not found, it returns FALSE.

参见


«  mb_strlen
» mb_strrchr
快速导航

Copyright © 2016 phpStudy | 皖ICP备18014864号-4