Online PHP editor | output for WJnYu

@ 2021-01-15T17:47:15Z

<?php

function array_remove_null($input) { 
  foreach ($input as &$value) { 
    if (is_array($value)) { 
      $value = array_remove_null($value); 
    }
  }
  return array_filter($input, function($item){
    return $item !== null && $item !== '';
  }); 
}

/**
 * Using https://www.php.net/manual/en/function.array-replace-recursive.php
 */

$array1 = [
	"2020-12" => [
		"Mois" => "2020-12",
		"Nbr vendus" => null,
		"CA TTC" => null,
		"number" => "1",
	],
	"2021-01" => [
		"Mois" => "2021-01",
		"Nbr vendus" => null,
		"CA TTC" => null,
		"number" => "2",
	],
];

$array2 = [
	"2020-12" => [
		"Mois" => "2020-12",
		"Nbr vendus" => "1",
		"CA TTC" => "790",
		"number" => null,
	],
	"2021-01" => [
		"Mois" => "2021-01",
		"Nbr vendus" => "3",
		"CA TTC" => "1680",
		"number" => null,
	],
];

$array = array_replace_recursive(array_remove_null($array1), array_remove_null($array2));

var_dump($array);

Output for 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.4, 8.3.6: array(2) { ["2020-12"]=> array(4) { ["Mois"]=> string(7) "2020-12" ["number"]=> string(1) "1" ["Nbr vendus"]=> string(1) "1" ["CA TTC"]=> string(3) "790" } ["2021-01"]=> array(4) { ["Mois"]=> string(7) "2021-01" ["number"]=> string(1) "2" ["Nbr vendus"]=> string(1) "3" ["CA TTC"]=> string(4) "1680" } }
Output for 8.3.5: Warning: PHP Startup: Unable to load dynamic library 'sodium.so' (tried: /usr/lib/php/8.3.5/modules/sodium.so (libsodium.so.23: cannot open shared object file: No such file or directory), /usr/lib/php/8.3.5/modules/sodium.so.so (/usr/lib/php/8.3.5/modules/sodium.so.so: cannot open shared object file: No such file or directory)) in Unknown on line 0 array(2) { ["2020-12"]=> array(4) { ["Mois"]=> string(7) "2020-12" ["number"]=> string(1) "1" ["Nbr vendus"]=> string(1) "1" ["CA TTC"]=> string(3) "790" } ["2021-01"]=> array(4) { ["Mois"]=> string(7) "2021-01" ["number"]=> string(1) "2" ["Nbr vendus"]=> string(1) "3" ["CA TTC"]=> string(4) "1680" } }

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