如何通过连接获取变量？

Question

我知道有讨论串联的话题。 但是，我似乎没有搞清楚什么不对的

$LEVEL0 = "Banned"; 
$LEVEL1 = "Member"; 
$LEVEL2 = "Subscriber"; 
$Level = "LEVEL".$userRow['user_level']; 

echo($Level); 

这将永远只是回声存储在$userRow['user_level'] 的数量，而不是附和变量本身的价值。

Answer 1

使用Variable variables。

$LEVEL0 = "Banned"; 
$LEVEL1 = "Member"; 
$LEVEL2 = "Subscriber"; 
$Level = "LEVEL" . $userRow['user_level']; 

echo $$Level; 

Answer 2

试试这个

$LEVEL0 = "Banned"; 
$LEVEL1 = "Member"; 
$LEVEL2 = "Subscriber"; 
$Level = $LEVEL.$userRow['user_level']; 

echo $Level; 

Answer 3

我认为你正在寻找这样的：

$LEVEL = array("Banned","Member","Subscriber"); 

$Levelval = $LEVEL[$userRow['user_level']]; 

echo $Levelval;