PHP append one array to another

Last Updated : 03 Nov, 2018

Given two array arr1 and arr2 and the task is to append one array to another array. Examples:

 Input : arr1 = [ 1, 2 ] arr2 = [ 3, 4 ] Output : arr1 = [ 1, 2, 3, 4 ] Input : arr1 = [ "Geeks", "g4g" ] arr2 = [ "GeeksforGeeks" ] Output : arr1 = [ "Geeks", "g4g", "GeeksforGeeks" ]

Using array_merge function: This function returns a new array after merging the two arrays. Example:

php

<?php $arr1 = array("Geeks", "g4g"); $arr2 = array("GeeksforGeeks", "Computer science portal"); // Get the merged array in the first array itself. $arr1 = array_merge($arr1, $arr2); echo "arr1 Contents:"; // Use for each loop to print all the array elements. foreach ($arr1 as $value) { echo $value . "\n"; } ?>

Output:

arr1 Contents: Geeks g4g GeeksforGeeks Computer science portal

Using array_push Method: This method pushes the second array element in the first array in-place. Example:

php

<?php $arr1 = array(1, 2); $arr2 = array(3, 4); // arr2 elements are being pushed in the arr1. array_push($arr1 , ...$arr2); echo "arr1 = "; // Use for each loop to print all the array elements. foreach ($arr1 as $value) { echo $value . ' '; } ?>