Question

在codeacademy上做一些非常基本的编码，这已经困扰了我一个多小时了。该代码可能出现错误，显示错误“解析错误：语法错误，第12行意外T_ELSEIF”

<html>
  <head>
    <title>Our Shop</title>
  </head>
  <body>
    <p>
      <?php
        $items = 10;    // Set this to a number greater than 5!
        if ($items > 5) {
          echo "You get a 10% discount!"; }
          else { echo "You get a 5% discount!";
          } elseif ($items == 1) {
              echo "Sorry, no discount!";
          }


      ?>
    </p>
  </body>
</html>

Answer 1

else块必须是最后一个。它不能在else if：

之前

if ($items > 5) {
    echo "You get a 10% discount!";
} else if ($items == 1) {
    echo "Sorry, no discount!";
} else {
    echo "You get a 5% discount!";
}

Answer 2

如果您打算使用else，则else if块必须是最后一个。请注意您对{和}的使用情况。如果它很乱，那么很难阅读并且难以调试。

<html>
  <head>
    <title>Our Shop</title>
  </head>
  <body>
    <p>
      <?php
        $items = 10;    // Set this to a number greater than 5!
        if ($items > 5) {
            echo "You get a 10% discount!";
        } else if ($items == 1) {
            echo "Sorry, no discount!"; 
        } else { 
            echo "You get a 5% discount!";
        }
      ?>
    </p>
  </body>
</html>

解析错误：语法错误，意外T_ELSEIF

2 个答案: