<?php
	function test_parse_time($f)
	{
		if (preg_match("/[0-9]{12}/", $f)) {
			$type = "YYYYMMDDHHii";
		}
		else if (preg_match("/[0-9]{8}\ [0-9]{4}/", $f)) {
			$type = "YYYYMMDD HHii";
		}
		else if (preg_match("/[0-9]{4}-[0-9]{2}-[0-9]{2}/", $f)) {
			$type = "YYYY-MM-DD";
		}
		else {
			$type = "*unknown*";
		}

		echo "This is a $type format.\n";
	}

	$formats = array('2004-08-17 21:20', '20040817 2120');
	foreach ($formats as $format) {
		test_parse_time($format);
	}
?>