php - PHP if statements with multiple values

Question

Is there a shorter way of writing this?

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

Something like this perhaps?

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

score 30 · Accepted Answer

30

只需尝试：

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

于 2013-10-02T14:30:09.773 回答

score 4 · Accepted Answer

也许不是更短但更具可读性。试试 in_array() 函数：

if (in_array($_GET['id'], array(1, 3, 4, 5)))
{
  echo "What about this?";
}

score 2 · Accepted Answer

也许 switch 可能会有所帮助

switch($_GET['id']) {
    case 1: 
    case 3: 
    case 4: 
    case 5:
        echo 'Slect maybe :P';
        break;
}

score 1 · Accepted Answer

1

您可以使用如下正则表达式：

preg_match(['1-4']);

于 2013-10-02T14:36:43.523 回答

score 0 · Accepted Answer

声明一个数组：

$values = array(1,3,4,5);

获取你的变量

$id = $_GET['id'];

现在使用 PHP in_array();

if(in_array($id, $values)){
//do something
}

5 回答 5