<?php

function sendMemcacheCommand($command){

	$server = "localhost";
	$port = 11211;

	$s = @fsockopen($server,$port);
	if (!$s){
		die("Cant connect to:".$server.':'.$port);
	}

	fwrite($s, $command."\r\n");

	$buf='';
	while ((!feof($s))) {
		$buf .= fgets($s, 256);
		if (strpos($buf,"END\r\n")!==false) {
		    break;
		}
		if (strpos($buf,"DELETED\r\n")!==false || strpos($buf,"NOT_FOUND\r\n")!==false) {
		    break;
		}
		if (strpos($buf,"OK\r\n")!==false) {
		    break;
		}
	}
    fclose($s);

	return ($buf);
}

function listKeys() {

	$res = array();

	$string = sendMemcacheCommand("stats items");

	$lines = explode("\r\n", $string);

	$slabs = array();

	foreach($lines as $line) {
		if (preg_match("/STAT items:([\d]):/", $line, $matches) == 1) {

			if (isset($matches[1])) {
				if (!in_array($matches[1], $slabs)) {
					$slabs[] = $matches[1];

					$string = sendMemcacheCommand("stats cachedump " . $matches[1] . " 100");

					preg_match_all("/ITEM (.*?) /", $string, $matches);
					$res = array_merge($res, $matches[1]);
				}
			}
		}
	}

	return $res;
}

var_dump(listKeys());

?>