If you need to remove elements from an array that have a particular value(s) here’s a neat way of doing it without any looping.

Remove values from array...elegantly

<?php

// PHP: Remove Values from Array
// If you need to remove elements from an array that have a particular value(s) here’s a neat way of doing it without any looping.

// our initial array
$arr = Array("blue", "green", "red", "yellow", "green", "orange", "yellow", "indigo", "red");
print_r($arr);

// remove the elements who's values are yellow or red
$arr = array_diff($arr, array("yellow", "red"));
print_r($arr);

// optionally you could reindex the array
$arr = array_values($arr);

print_r($arr);
?>

This is the output from the code above:

Array ( [0] => blue [1] => green [2] => red [3] => yellow [4] => green [5] => orange [6] => yellow [7] => indigo [8] => red )
Array ( [0] => blue [1] => green [4] => green [5] => orange [7] => indigo )
Array ( [0] => blue [1] => green [2] => green [3] => orange [4] => indigo )

From Pete Graham xXx
of Optimus Pete http://tech.petegraham.co.uk/2007/03/22/php-remove-values-from-array/