PHP

unset in php array key pair value

<?php
$array = array('a','b','c','d','e');
unset($array[4]);
print_r($array);
?>
Array
(
    [0] => a
    [1] => b
    [2] => c
    [3] => d
)  

php array remove keys keep values

<?php
$array = array("size" => "XL", "color" => "gold");
print_r(array_values($array));
?>
Array
(
    [0] => XL
    [1] => gold
)