How to replace the value of an array in php

How to replace array values ​​in php: Use the function [array_replace()] to replace the value of the first array with the value of the following array. The syntax is [array_replace(array1,array2,array3...)].

php method to replace array values:

Definition and usage

array_replace() The function replaces the value of the first array with the value of the subsequent array.

Tip: You can pass an array, or multiple arrays, to the function.

If a key exists in the first array array1 and also exists in the second array array2, the value in the first array array1 will be replaced by the value in the second array array2. If a key only exists in the first array array1, it will remain unchanged. (See Example 1 below for details)

If a key exists in the second array array2, but does not exist in the first array array1, the element will be created in the first array array1. (See Example 2 below for details)

If multiple replacement arrays are passed, they will be processed in order, and the values ​​of the subsequent arrays will overwrite the values ​​of the previous arrays. (See Example 3 below for details)

Tips: Please use array_replace_recursive() to recursively replace the value of the first array with the value of the subsequent array.

Syntax

array_replace(array1,array2,array3...)

##Examples

Use no. Replace the value of the first array ($a1) with the values ​​of the two arrays ($a2):

Related free learning recommendations:

php programming (video)

The above is the detailed content of How to replace the value of an array in php. For more information, please follow other related articles on the PHP Chinese website!