PHP Array Tips - Part 16: Do you want to re-index a numerically indexed array after removing elements? You can use array_values() function like this:
<?php
$arr = array("zero","zero","zero","one", "two", "three", "four", "five", "six");
$arr2 = array_unique($arr);
print_r($arr2);
// result: Array ( [0] => zero [3] => one [4] => two [5] => three [6] => four [7] => five [8] => six )
echo "<br>";
$arr3 = array_values($arr2);
print_r($arr3);
// result: Array ( [0] => zero [1] => one [2] => two [3] => three [4] => four [5] => five [6] => six )
?>
