tryphp_func_array_uintersect_uassoc.php:
<!DOCTYPE html> <html> <body> <?php function myfunction_key($a,$b) { if ($a===$b) { return 0; } return ($a>$b)?1:-1; } function myfunction_value($a,$b) { if ($a===$b) { return 0; } return ($a>$b)?1:-1; } $a1=array("a"=>"red","b"=>"green","c"=>"blue"); $a2=array("a"=>"red","b"=>"green","c"=>"green"); $result=array_uintersect_uassoc($a1,$a2,"myfunction_key","myfunction_value"); print_r($result); ?> </body> </html>
Array ( [a] => red [b] => green )