unset an array php code example

Example 1: php remove item array

$items = ['banana', 'apple'];

unset($items[0]);

var_dump($items); // ['apple']

Example 2: php delete element from array

//Delete array items with unset(no re-index) or array_splice(re-index)
$colors = array("red","blue","green");                             
unset($colors[1]);//remove second element, do not re-index array

$colors = array("red","blue","green");
array_splice($colors, 1, 1); //remove second element, re-index array

Example 3: Deleting an element from an array in PHP

$array = [0 => "a", 1 => "b", 2 => "c"];
unset($array[1]); //Key which you want to delete
/*
$array:
[
    [0] => a
    [2] => c
]
*/
//OR
$array = [0 => "a", 1 => "b", 2 => "c"];
array_splice($array, 1, 1);//Offset which you want to delet
/*
$array:
[
    [0] => a
    [1] => c
]
*/

Example 4: php unset

// Destroy a variable
<?php
unset ($var1, $var2.... )
?>

Example 5: unset by key name php

unset($array['key-here']);