Php WHILE loops only find one element - php

Question

I got a problem with the following php code. It is supposed to list the items of a S3 bucket and find&delete files which contain a certain string in their filenames.
Problem is: only one file is deleted the others remain on the bucket after the execution of the script.
I can't find where the issue comes from so I ask you :/
$aS3Files = $s3->getBucket($bucketName); // list all elements in the bucket
$query = mysql_query("SELECT filename FROM prizes_media WHERE prize_id=" . $_POST["prizeId"]); // finds all filenames linked to the prize
while($media = mysql_fetch_array($query)){
// Find relevant files
while ( list($cFilename, $rsFileData) = each($aS3Files) ) { // reformat the bucket list into a table and reads through it
if(strpos($cFilename,$media['filename'])) {
$s3->deleteObject($bucketName, $cFilename); // deletes all files that contain $media['filename'] in their filename
}
}
}
// 2. Delete DB entry
mysql_query("DELETE FROM prizes WHERE id=" . $_POST['prizeId'] ); // deletes the entry correponding to the prize in the DB (deletes media table in cascade)

Answer 1

You may be getting false negatives on your if, you should be using this:
if(strpos($cFilename,$media['filename']) !== FALSE) { ...
Edit
Here is a different way to loop the bucket, based on the structure on your comment:
foreach($aS3Files as $filename => $filedata) {
if(strpos($filename, $media['filename']) !== FALSE) {
$s3->deleteObject($bucketName, $filename); // deletes all files that contain $media['filename'] in their filename
}
}