php PHP only function curry args func_get_args args unset args return

<?php
// PHP 5.3 only
function curry(){
	$args = func_get_args();
	$f = $args[0];
	unset($args[0]);
	return function() use($f, $args) {$a = func_get_args(); return call_user_func_array($f, $args+$a); }; 
}

$mass_log = curry('array_map', 'log');
print_r($mass_log(array(2, 3, 5, 7)));
?>