Arr::keys_exists($keys, $array)

gistfile1.aw

<?php

class Arr extends Kohana_Arr {
	
	/**
	 * Checks that keys exists in the array.
	 * Keys, not key (singular), as built-in function does.
	 *
	 * @param  array   The array of keys
	 * @param  array   The array to check
	 * @return boolean Does all keys exists in the array?
	 */
	static function keys_exists(array $keys, array $array) {
		
		foreach ($keys as $key) {
			
			if (array_key_exists($key, $array) === false) {
				
				return false;
				
			}
			
		}
		
		return true;
		
	}
	
}