st:php: remove array

gistfile1.txt

$posts = array(
 array(
  'title' => 'some title',
	'description' => 'some description',
	'url'  => 'http://aurel'
	),
	array(
'title' => 'some time',
	'description' => 'some one',
	'url'  => 'http://aurel'
		)
	);

foreach ($posts as $key1 => $value) {
	foreach ($value as $key => $value) {
		if ($value == 'some description') {
			unset($posts[$key1]);
		}
	}
}