strripos
Find the position of the last occurrence of a case-insensitive substring in a string
Description
int strripos
( string $haystack
, string $needle
[, int $offset = 0
] )
Unlike the strrpos, strripos is
case-insensitive.
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.
-
offset
-
If specified, search will start this number of characters counted from the
beginning of the string. If the value is negative, search will instead start
from that many characters from the end of the string, searching backwards.
Return Values
Returns the position where the needle exists relative to the beginnning of
the haystack string (independent of search direction
or offset).
Also note that string positions start at 0, and not 1.
Returns FALSE if the needle was not found.
WarningThis function may
return Boolean FALSE, but may also return a non-Boolean value which
evaluates to FALSE. Please read the section on Booleans for more
information. Use the ===
operator for testing the return value of this
function.
Examples
Example #1 A simple strripos example
<?php
$haystack = 'ababcd';
$needle = 'aB';
$pos = strripos($haystack, $needle);
if ($pos === false) {
echo "Sorry, we did not find ($needle) in ($haystack)";
} else {
echo "Congratulations!\n";
echo "We found the last ($needle) in ($haystack) at position ($pos)";
}
?>
The above example will output:
Congratulations!
We found the last (aB) in (ababcd) at position (2)
See Also
- strpos
- stripos
- strrpos
- strrchr
- stristr
- substr