Remove an element from array

An easy way of removing an array element in PHP script is to use function array_diff. For
example:

<?php

	$sample_arr = array("1" => "red", "2" => "blue", "3" => "yellow");

	$sample_arr = array_diff($sample_arr, array("blue"));

	print_r($sample_arr);

	/*
		This will produce:

		Array ( [1] => red [3] => yellow )

	*/

?>