note 35618 deleted from function.strrpos by vincent
| From: | vincent@php.net | Date: | Mon, 08 Sep 2003 15:48:56 +0000 |
| Subject: | note 35618 deleted from function.strrpos by vincent | ||
| References: | 1 | Groups: | php.notes |
| Request: | Send a blank email to php-notes+get-55853@lists.php.net to get a copy of this message | ||
Note Submitter: lee at 5ss dot net
----
Sorry, I posted the function incorrectly. I used the function as a method in a class, hence the
recursion looked like "return $this->..." Just remove the "$this-> " from
the return statement and it will work. Below is the corrected version of the function:
//Find last occurance of needle in haystack
function str_rpos($haystack, $needle, $start = 0){
$tempPos = strpos($haystack, $needle, $start);
if($tempPos === false){
if($start == 0){
//Needle not in string at all
return false;
}else{
//No more occurances found
return $start - strlen($needle);
}
}else{
//Find the next occurance
return str_rpos($haystack, $needle, $tempPos + strlen($needle));
}
}
By the way, I believe this function to be *much* more effecient that the reverse and search solution
when dealing with larger strings, such as entire documents or templates. Sorry for the mistake in
the first posting.