3v4l.org

run code in 300+ PHP versions simultaneously
<!DOCTYPE html> <html> <body> <?php $a1=array("a"=>"red","b"=>"green"); $a2=array("c"=>"blue","b"=>"yellow"); print_r(array_merge($a1,$a2)); ?> </body> </html>

preferences:
36.1 ms | 402 KiB | 5 Q