Multibyte String 函数
PHP Manual

mb_stristr

(PHP 5 >= 5.2.0)

mb_stristrFinds first occurrence of a string within another, case insensitive

说明

string mb_stristr ( string $haystack , string $needle [, bool $part = false [, string $encoding ]] )

mb_stristr() finds the first occurrence of needle in haystack and returns the portion of haystack. Unlike mb_strstr(), mb_stristr() is case-insensitive. If needle is not found, it returns FALSE.

参数

haystack

The string from which to get the first occurrence of needle

needle

The string to find in haystack

part

Determines which portion of haystack this function returns. If set to TRUE, it returns all of haystack from the beginning to the first occurrence of needle. If set to FALSE, it returns all of haystack from the first occurrence of needle to the end,

encoding

Character encoding name to use. If it is omitted, internal character encoding is used.

返回值

Returns the portion of haystack, or FALSE if needle is not found.

参见


Multibyte String 函数
PHP Manual