PHP 8 reference · Array Functions

PHP array_push() Function

Add one or more elements to the end of an array and return its new length. $array[] = $value does the same for one value.

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Syntax

array_push(array &$array, mixed ...$values): int

Parameter	Description
`array`	The array to add to (changed in place).
`values`	The values to append.

The new number of elements.

Append several valuesTry it yourself

<?php
$stack = ["a", "b"];
$length = array_push($stack, "c", "d");
echo $length, "\n";
print_r($stack);

Output

4
Array
(
    [0] => a
    [1] => b
    [2] => c
    [3] => d
)

The [] shortcutTry it yourself

<?php
$cart = [];
$cart[] = "tea";   // the usual way to add one value
$cart[] = "cake";
print_r($cart);

Output

Array
(
    [0] => tea
    [1] => cake
)

Version	Change
PHP 4.0	Added
PHP 7.3	Can be called with only the array argument.

array_pop() · Remove the last element of an array and return it. Returns null if the array is empty.
array_unshift() · Add one or more elements to the start of an array and return its new length. Numeric keys are renumbered.
array_merge() · Merge one or more arrays into a new array. Numeric keys are renumbered; for string keys the later value wins.
PHP Arrays · tutorial
PHP Array Functions · tutorial