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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