Find Last occurrence of a string in php 4

[compose]

Hi ,

Can any body tell how i can trape last occurance of a string in a string. I use strripos()function to do this. But it is available in php 5 ont in 4. And there is php4 installed on my web server. So my scriptting is not running properly. Can any body tell substitute of this function in php4.

Vineet.

[mcibor]

I found in Manual [php.net]

The "find-last-occurrence-of-a-string" functions suggested here do not allow for a starting offset, so here's one, tried and tested, that does:

function my_strrpos($haystack, $needle, $offset=0) {
// same as strrpos, except $needle can be a string
$strrpos = false;
if (is_string($haystack) && is_string($needle) && is_numeric($offset)) {
$strlen = strlen($haystack);
$strpos = strpos(strrev(substr($haystack, $offset)), strrev($needle));
if (is_numeric($strpos)) {
$strrpos = $strlen - $strpos - strlen($needle);
}
}
return $strrpos;
}

Hope this helps
Michal Cibor