stripos
(PHP 5)
stripos — Find position of first occurrence of a case-insensitive string
Description
int stripos
( string $haystack
, string $needle
[, int $offset
] )
Unlike strpos(), stripos() is
case-insensitive.
Parameters
-
haystack
-
The string to search in
-
needle
-
Note that the needle
may be a string of one or
more characters.
If needle
is not a string, it is converted to
an integer and applied as the ordinal value of a character.
-
offset
-
The optional offset
parameter allows you
to specify which character in haystack
to
start searching. The position returned is still relative to the
beginning of haystack
.
Return Values
If needle
is not found,
stripos() will return boolean FALSE.
WarningThis function may
return Boolean FALSE, but may also return a non-Boolean value which
evaluates to FALSE, such as 0 or
"". Please read the section on Booleans for more
information. Use the ===
operator for testing the return value of this
function.
Examples
Example #1 stripos() examples
<?php
$findme = 'a';
$mystring1 = 'xyz';
$mystring2 = 'ABC';
$pos1 = stripos($mystring1, $findme);
$pos2 = stripos($mystring2, $findme);
if ($pos1 === false) {
echo "The string '$findme' was not found in the string '$mystring1'";
}
if ($pos2 !== false) {
echo "We found '$findme' in '$mystring2' at position $pos2";
}
?>
Notes
Note: This function is
binary-safe.
stripcslashes
