PHP Manual: Find the first occurrence of a string

Description

string strstr ( string $haystack , mixed $needle [, bool $before_needle = false ] )

Returns part of haystack string starting from and including the first occurrence of needle to the end of haystack.

Note:
This function is case-sensitive. For case-insensitive searches, use stristr.

Note:
If you only want to determine if a particular needle occurs within haystack, use the faster and less memory intensive function strpos instead.

Parameters

haystack: The input string.
needle: If needle is not a string, it is converted to an integer and applied as the ordinal value of a character.
before_needle: If TRUE, strstr returns the part of the haystack before the first occurrence of the needle (excluding the needle).

Return Values

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

Changelog

Version	Description
5.3.0	Added the optional parameter `before_needle`.
4.3.0	strstr was made binary safe.

Examples

Example #1 strstr example


<?php
$email  = 'name@example.com';
$domain = strstr($email, '@');
echo $domain; // prints @example.com

$user = strstr($email, '@', true); // As of PHP 5.3.0
echo $user; // prints name
?>

strstr

Description

Parameters

Return Values

Changelog

Examples

See Also