(PHP 4, PHP 5, PHP 7)
strstr — Find the first occurrence of a string
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
needleoccurs withinhaystack, use the faster and less memory intensive function strpos() instead.
haystackThe 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).
Returns the portion of string, or FALSE if needle
is not found.
| Version | Description |
|---|---|
| 5.3.0 |
Added the optional parameter before_needle.
|
| 4.3.0 | strstr() was made binary safe. |
Example #1 strstr() example
<?php
$email = '[email protected]';
$domain = strstr($email, '@');
echo $domain; // prints @example.com
$user = strstr($email, '@', true); // As of PHP 5.3.0
echo $user; // prints name
?>