Question

这是我在html文件中使用的代码

<? if (empty($_POST["name"]) || empty($_POST["gender"]) || empty($_POST["dorm"]): ?>
  You must provide your name, gender, and dorm!  Go <a href="froshims2.php">back</a>.
<? else: ?>
  You are registered!  (Well, not really.)
<? endif ?>

我收到错误说：

解析错误：语法错误，意外'：'in 第20行/home/jharvard/vhosts/localhost/public/week2/register2.php

我不明白为什么这种形式的if else不起作用

Answer 1

在此行上缩小结束括号

<? if (empty($_POST["name"]) || empty($_POST["gender"]) || empty($_POST["dorm"]): ?>

应该是

<? if (empty($_POST["name"]) || empty($_POST["gender"]) || empty($_POST["dorm"])): ?>

注意$_POST['dorm']

之后的最后一个括号

Answer 2

你在if语句的末尾遗漏了一个)，在endif之后遗漏了一个分号：

<? if (empty($_POST["name"]) || empty($_POST["gender"]) || empty($_POST["dorm"])): ?>
  You must provide your name, gender, and dorm!  Go <a href="froshims2.php">back</a>.
<? else: ?>
  You are registered!  (Well, not really.)
<? endif; ?>

Answer 3

if (empty($_POST["name"]) || empty($_POST["gender"]) || empty($_POST["dorm"]): ?>失踪）在结束之前：

Answer 4

<?php
if (empty($_POST["name"]) || empty($_POST["gender"]) || empty($_POST["dorm"])) 
  echo 'You must provide your name, gender, and dorm!  Go <a href="froshims2.php">back</a>.';
else
  echo "You are registered!  (Well, not really.)";
?>

Php if，否则不工作

4 个答案: