xat/gist:5690206

## gistfile1.php
<?php

function setter($val) {
  return function(&$val) use ($val) {}
};


$fooSetter = setter('foo');
$fooSetter($x);

echo $x; // 'foo'
	<?php

	function setter($val) {
	return function(&$val) use ($val) {}
	};


	$fooSetter = setter('foo');
	$fooSetter($x);

	echo $x; // 'foo'