how does array_diff work?
- by SpawnCxy
I just wonder how array_diff() works.And obviously it couldn't work as follows
function array_diff($arraya, $arrayb)
{
$diffs = array();
foreach ($arraya as $keya => $valuea)
{
foreach ($arrayb as $valueb)
{
if ($valuea == $valueb)
{
break;
}
$diffs[$keya]=$valuea;
}
}
return $diffs;
} //couldn't be worse than this
Hope someone can show me some better solution.
Thanks.
