strstr
Find the first occurrence of a string
Description
stringfalse strstr(string $haystack, string $needle, bool $before_needle = false)
Note:
This function is case-sensitive. For case-insensitive searches, use
stristr.
Note:
If it is only required to determine if a particular needle
occurs within haystack, the faster and less memory
intensive str_contains function should be used instead.
Parameters
-
haystack
-
The input string.
-
needle
-
The string to search for.
Prior to PHP 8.0.0, 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).
Return Values
Returns the portion of string, or false if needle
is not found.
Examples
Example #1 strstr example
<?php
$email = 'name@example.com';
$domain = strstr($email, '@');
echo $domain; // prints @example.com
$user = strstr($email, '@', true);
echo $user; // prints name
?>
See Also
- stristr
- strrchr
- strpos
- strpbrk
- preg_match