$function) {
			if (!function_exists($function)) unset($mathFunctions[$key]);
		}
		for ($i=0; $i < $count; $i++) {
			foreach ($mathFunctions as $function) {
				$r = call_user_func_array($function, array($i));
			}
		}
		return number_format(microtime(true) - $time_start, 3);
	}
	
	
	function test_StringManipulation($count = 1000) {
		$time_start = microtime(true);
		$stringFunctions = array("addslashes", "chunk_split", "metaphone", "strip_tags", "md5", "sha1", "strtoupper", "strtolower", "strrev", "strlen", "soundex", "ord");
		foreach ($stringFunctions as $key => $function) {
			if (!function_exists($function)) unset($stringFunctions[$key]);
		}
		$string = "the quick brown fox jumps over the lazy dog";
		for ($i=0; $i < $count; $i++) {
			foreach ($stringFunctions as $function) {
				$r = call_user_func_array($function, array($string));
			}
		}
		return number_format(microtime(true) - $time_start, 3);
	}


	function test_Loops($count = 1000) {
		$time_start = microtime(true);
		for($i = 0; $i < $count; ++$i);
		$i = 0; while($i < $count) ++$i;
		return number_format(microtime(true) - $time_start, 3);
	}

	
	function test_IfElse($count = 1000) {
		$time_start = microtime(true);
		for ($i=0; $i < $count; $i++) {
			if ($i == -1) {
			} elseif ($i == -2) {
			} else if ($i == -3) {
			}
		}
		return number_format(microtime(true) - $time_start, 3);
	}	
	
	
	$total = 0;
	$functions = get_defined_functions();
	$line = str_pad("-",38,"-");
	echo "
$line\n|".str_pad("PHP BENCHMARK SCRIPT",36," ",STR_PAD_BOTH)."|\n$line\nStart : ".date("Y-m-d H:i:s")."\nServer : {$_SERVER['SERVER_NAME']}@{$_SERVER['SERVER_ADDR']}\nPHP version : ".PHP_VERSION."\nPlatform : ".PHP_OS. "\n$line\n";
	foreach ($functions['user'] as $user) {
		if (preg_match('/^test_/', $user)) {
			$total += $result = $user();
            echo str_pad($user, 25) . " : " . $result ." sec.\n";
        }
	}
	echo str_pad("-", 38, "-") . "\n" . str_pad("Total time:", 25) . " : " . $total ." sec.
";
echo "\n";	
?>