PHP loop API

loops.php

<?php

function loop($count, $callback) {
	if (is_int($count)) {
		for ($i = 0; $i < $count; $i++) {
        	$callback($i);
		}
	}
	elseif(is_array($count)) {
		$_copy = $count;
		while($v = array_shift($_copy)) $callback($v);
	}
	elseif(is_callable($count)) {
		while($r = $count()) $callback($r);
	}
}


loop(5, function() {
	print "I'm new here.\n";
});

loop(3, function($i) {
	loop(3, function($z) use ($i) {
		print "$i : $z\n";
	});
});

loop([2, 3, 4, 5], function($v) {
	print "This is $v.\n";
});

loop(
	function() {
		static $cnt = 0;
		$cnt++;
		return $cnt > 5 ? NULL : $cnt;
	},
	function($v) {
		print "I was called.\n";
	}
);