PHP - array_merge

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Metóda - array_merge

(PHP 4, PHP 5, PHP 7)

The function merges several arrays into one array. The result array is created by appending the array to the end of the previous one. If the key exists in the array, it will be replaced. If we only merge arrays with numerical indexes, they are not replaced, but they are simply put one by one where the result array is renumbered from zero.

Procedurálne

• function array_merge (array $array1, array $...) : array

Parametre

Názov	Dátový typ	Predvolená hodnota	Popis
$array1	array		An array.
$...	array		Several arrays.

Mávratovej hodnoty

Vracia: array

An array made by merging several arrays.

Príklady

Firstly, we merge simple, numerically-indexed arrays:

<?php
$a = [1, 2, 3];
$b = [4, 5, 6];
$c = [7, 8, 9];
$array = array_merge($a, $b, $c);

print_r($array);

Let's show a more complex example:

<?php
$a = [1, 2, 3];
$b = ['Simpson' => 'Homer', 'Flinstone' => 'Fred'];
$c = ['Simpson' => 'Lisa', 1, 2];
$array = array_merge($a, $b, $c);

print_r($array);