simple php daemon

daemon.php

<?php

if($argv[1] == '-d') {
	echo "start daemon\n";
	while(true) {
		if(file_exists('message.txt')) {
			$oMessage = json_decode(file_get_contents('message.txt'));
			if($oMessage->action == 'sayHello') {
				echo "Hello...\n";
			}
			if($oMessage->action == 'exit') {
				echo "exit daemon\n";
				unlink('message.txt');
				die();
			}
			
			unlink('message.txt');
		}
	}
}

if($argv[1] == '-sayhallo') {
	$oMessage = new stdClass;
	$oMessage->action = 'sayHello';
	file_put_contents('message.txt', json_encode($oMessage));
}

if($argv[1] == '-exit') {
	$oMessage = new stdClass;
	$oMessage->action = 'exit';
	file_put_contents('message.txt', json_encode($oMessage));
}