3v4l.org

run code in 300+ PHP versions simultaneously

@ 2019-09-17T07:25:57Z

<?php

$a = Array
(
    '0' => Array
        (
            'id' => 1,
            'color' => 'red'

        ),

    '1' => Array
        (
            '0' => Array
                (
                    'id' => 2,
                    'color' => 'blue'
                ),

            '1' => Array
                (
                    '0' => Array
                        (
                            'id' => 3,
                            'color' => 'green'
                        )

                ),

            '2' => Array
                (
                    'id' => 4,
                    'color' => 'blue'
                )

        ),

    '2' => Array
        (
            'id' => 5,
            'color' => 'purple'
        )

);
$i = 0;
array_walk_recursive($a, function($v,$k)use(&$r,&$i){
	$r[$i][$k] = $v;
	($k == 'color') ? $i++ :$i; 
});
echo '<pre>';
print_r($r);

print_r: documentation ( source)
array_walk_recursive: documentation ( source)

preferences:dark modelive previewkey bindings

176.86 ms | 405 KiB | 5 Q