<?php
$foo = Array
(
1 => 'nanananana,lol,',
2 => 'laaaaalalalala,asd,',
3 => 'r0tfl,lmfao,ahah,'
);
$bar = Array
(
1 => 'dunnoWhat,write,',
3 => 'hello,wooorld,'
);
$result =
array_diff_key($foo, $bar)
+
array_combine(
$y = array_keys(array_intersect_key($foo, $bar)),
array_map(function($x) use ($foo, $bar)
{
return $foo[$x]."\n".$bar[$x];
}, $y)
)
+
array_diff_key($bar, $foo);
var_dump($result);
preferences:
39.94 ms | 402 KiB | 5 Q