strripos

Find the position of the last occurrence of a case-insensitive substring in a string

&reftitle.description; `int` `strripos` `string` `haystack` `string` `needle` `int` `offset` 0

Find the numeric position of the last occurrence of `needle` in the `haystack` string.

Unlike the `strrpos`, `strripos` is case-insensitive.

&reftitle.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.

&reftitle.returnvalues;

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.

&return.falseproblem;
&reftitle.examples;

### 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)";
    }
    ?>

&example.outputs;

       Congratulations!
       We found the last (aB) in (ababcd) at position (2)

&reftitle.seealso;

- `strpos`
- `stripos`
- `strrpos`
- `strrchr`
- `stristr`
- `substr`