note 47475 deleted from function.in-array by felipe

Note Submitter: memandeemail at gmail dot com 

----

Some very helpfuly variant's, of functions:

class shared {
	/**lordfarquaad at notredomaine dot net 09-Sep-2004 11:44
	* @return bool
	* @param mixed $needle
	* @param mixed $haystack
	* @desc This function will be faster, as it doesn't compare all elements, it stops when it founds the good one. It also works if $haystack is not an array :-)
	*/

	function in_array_multi($needle, $haystack)
	{
		if(!is_array($haystack)) return $needle == $haystack;
		foreach($haystack as $value) if(shared::in_array_multi($needle, $value)) return true;
		return false;
	}

	/**lordfarquaad function's variant1
	* @return bool
	* @param string $needle_key
	* @param mixed $haystack
	* @desc Search a key in the array and return if founded or not.
	*/

	function in_array_key_multi($needle_key, $haystack)
	{
		if(!is_array($haystack)) return $needle_key == $haystack;
		foreach($haystack as $key => $value)
		{
			$value; // TODO: Extract the $key without seting $value
			if(shared::in_array_key_multi($needle_key, $key)) return true;
		}
		return false;
	}

	/**lordfarquaad function's variant2
	* @return bool
	* @param string $needlekey
	* @param mixed $needlevalue
	* @param mixed[optional] $haystack_array
	* @param string[optional] $haystack_key
	* @param mixed[optional] $haystack_value
	* @desc Search in array for the key and value equal.
	*/
	function in_array_multi_and_key($needlekey, $needlevalue, $haystack_array = null, $haystack_key = null, $haystack_value = null)
	{
		if (!is_array($haystack_array)) return ($needlekey == $haystack_key and $needlevalue == $haystack_value);
		foreach ($haystack_array as $key => $value) if (shared::in_array_multi_and_key($needlekey, $needlevalue, $value, $key, $value)) return true;
		return false;
	}
}

HOW TO USE:

shared::in_array_multi(......)

it's very simple.