Returns all of haystack
from the first
occurrence of needle
to the end.
Parameters
haystack
The string to search in
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 (the default is FALSE), stristr()
returns the part of the haystack
before the
first occurence of the needle
.
needle
and haystack
are examined in a case-insensitive manner.
Return Values
Returns the matched substring. If needle
is not
found, returns FALSE.
ChangeLog
Version
Description
5.3.0
Added the optional parameter before_needle
.
4.3.0
stristr() was made binary safe.
Examples
Example #1 stristr() example
<?php $email = '[email protected]'; echo stristr($email, 'e'); // outputs [email protected] echo stristr($email, 'e', true); // As of PHP 5.3.0, outputs US ?>
Example #2 Testing if a string is found or not
<?php $string = 'Hello World!'; if(stristr($string, 'earth') === FALSE) { echo '"earth" not found in string'; } // outputs: "earth" not found in string ?>
Example #3 Using a non "string" needle
<?php $string = 'APPLE'; echo stristr($string, 97); // 97 = lowercase a // outputs: APPLE ?>
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