//FOR EXAMPLE YOUR FILE FORMAT IS STOCK_2013_05_16.LOG
function glob_files($source_folder, $ext) {
if (!is_dir($source_folder)) {
die("Invalid directory.\\n\\n");
}
$todayDate = date(\'Y-m-d\'); // FILE FORMAT TO BE DELETED STOCK_2013_05_16.LOG
$FILES = glob($source_folder . "\\*." . $ext);
foreach ($FILES as $file) {
$filename= basename($file);
$filename_chunks = explode("_", $filename);
if($filename_chunks[1] == $todayDate.".log"){
continue;
}else{
unlink($source_folder."/".$filename);
}
}
}