How to useIndex Assignment in PHP
The most straightforward way to replace an element in a PHP array is to directly assign a new value to the desired index.
PHP
<?php $arr = array (10, 30, 40, 50, 70); $arr [1] = 100; // Display the updated array print_r( $arr ); ?> |
Output
Array ( [0] => 10 [1] => 100 [2] => 40 [3] => 50 [4] => 70 )
How to Replace an Element Inside Array in PHP ?
Given an array containing some elements, the task is to replace an element inside the array in PHP. There are various methods to manipulate arrays, including replacing elements.
Examples:
Input: arr = [10, 20, 30, 40, 50], index_1 = 100
Output: [10, 100, 30, 40, 50]
Input: arr = ['GFG', 'Geeks', 'Hello'], index_2 = 'Welcome'
Output: ['GFG', 'Geeks', 'Welcome']