I've got the problem. Here is my code:
$a = ['elm1' => 1, 'elm2' => []];
$b = ['elm1' => 2, 'elm2' => [3]];
$c = array_replace_recursive($b, $a);
In $c I expect to see ['elm1' => 1, 'elm2' => []], however I get ['elm1' => 1, 'elm2' => [3]]. It does not replace 'elm2' => [3] with 'elm2' => [].
Is this some kind of feature or this is a bug in array_replace_recursive?
Thank you.
Instead of array_replace_recursive you need simple array_replace as
$a = ['elm1' => 1, 'elm2' => []];
$b = ['elm1' => 2, 'elm2' => [3]];
$c = array_replace($b, $a);
print_r($c);//['elm1' => 1, 'elm2' => []]
array_replace_recursive.Use array_merge():-
<?php
$a = ['elm1' => 1, 'elm2' => []];
$b = ['elm1' => 2, 'elm2' => [3]];
$c = array_merge($b,$a); //it will check the indexes in both array and if indexes are same then first array value will remain on that index second will replace.
echo "<pre/>";print_r($c);
?>
Output:- https://eval.in/395368
array_merge will replace all the values for a corresponding key of sub-array while array_replace_recursive replace only the keys which match, rest remain same..array_merge will work over here but the OP need array_replace instead @b0s3 @anantkumarsingh you need to explain why array_merge you have used too