strstr
(PHP 4, PHP 5)
strstr — Find first occurrence of a string
Description
Returns part of haystack string from 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.
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
?>
See Also
- preg_match() - Perform a regular expression match
- stristr() - Case-insensitive strstr
- strpos() - Find position of first occurrence of a string
- strrchr() - Find the last occurrence of a character in a string
- substr() - Return part of a string