(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
needle
occurs withinhaystack
, use the faster and less memory intensive function strpos() instead.
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.
This behavior is deprecated as of PHP 7.3.0, and relying on it is highly
discouraged. Depending on the intended behavior, the
needle
should either be explicitly cast to string,
or an explicit call to chr() should be performed.
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 = '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
?>