1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18
<? $x = 1; $y = 1; if($x == 1) if($y == 1)echo("x=1 and y=1"); else echo("x!=1"); ?> <? $x = 1; $y = 1; if($x==1) { if($y==1)echo("x=1 and y=1"); } else echo("x!=1"); ?>