具有多个值的 PHP if 语句

Question

有没有更短的写法？

<? 
if($_GET['id']==1 ||
$_GET['id']==3 ||
$_GET['id']==4 || 
$_GET['id']==5)
{echo 'does it really have to be this explicit?'};
?>

也许是这样的？

<?
if($_GET['id']==1 || 3 || 4 || 5){echo 'this is much shorter'};
?>

Answer 1

试试看:

if ( in_array($_GET['id'], array(1, 3, 4, 5)) ) {}