<?php
$i = 2;
switch($i){
case 0:
echo "$i的值是0";
break;
case 1:
echo "$i的值是1";
break;
case 2:
echo "$i的值是2";
break;
default;
}
?>
报错:
Parse error: syntax error, unexpected '$i' (T_VARIABLE) in C:\xampp\htdocs\mywork2\emp1.php on line 2
$i = 2;
switch($i){
case 0:
echo "$i的值是0";
break;
case 1:
echo "$i的值是1";
break;
case 2:
echo "$i的值是2";
break;
default;
}
?>
报错:
Parse error: syntax error, unexpected '$i' (T_VARIABLE) in C:\xampp\htdocs\mywork2\emp1.php on line 2
(是全角字符,但在第3行错误2:形如 echo "$i的值是0"; 的就将报 Notice: Undefined variable: i的值是0
应写作 echo "{$i}的值是0";