removeKeysAsArray.php

<?php

function removeArray ($data, $blacklist) {
	return array_filter($data, function ( $k, $v = null ) use ($blacklist) {
		return !in_array($k, $blacklist);
	});
}

$result = removeArray ( [ "blue", "red", "green", "yellow" => "yup", ], ["red" => "hey", "green" => "someData", ]);

var_dump( $result );

// 	array(4) {
//  		[0] => string(4) "blue"
//  		[1] => string(3) "red"
//  		[2] => string(5) "green"
//  		["yellow"] => string(3) "yup"
//	}