What is the method to implement array value replacement in php

The way PHP implements array value replacement is to use the array_replace function to implement replacement, such as [array_replace($a1,$a2)]. This function replaces the values ​​of one array with the values ​​of another array and returns the replaced array.

Function used:

array_replace() function uses the value of the following array to replace the value of the first array and returns the replaced Array, or NULL if an error occurs.

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Syntax:

array_replace(array1,array2,array3...)

Parameters:

• array1 Required. Specify an array.

• array2 Optional. Specifies an array to replace the value of array1 .

• array3,... Optional. Specify multiple arrays to replace the values ​​of array1 and array2, ... . The values ​​in the following array will overwrite the values ​​in the previous array.

Example:

<?php
$a1=array("a"=>"red","green");
$a2=array("a"=>"orange","b"=>"burgundy");
print_r(array_replace($a1,$a2));
?>

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