当我没有设置单选按钮时，我遇到错误

Question

我尝试做一些条件，当我设置文本字段而不是单选按钮时，我会收到一个php错误。..........................................................................................................................................

这是我的代码：

<form method="post">

   <input type="text" name="name">

   <input type="radio" name="gender" value="female">Female

   <input type="radio" name="gender" value="male">Male

   <input type="radio" name="gender" value="other">Other

   <input type="submit">

</form>

<?php

   $name = $nameErr = $gender = $genderErr = '';

   if ($_SERVER["REQUEST_METHOD"] == "POST") {

       if ($_POST['name'] == '' || $_POST['gender'] == '') {

          echo('all filed');

       }

       else {

          if (empty($_POST["name"])) {

             $nameErr = "Name is required";

          } else {

             $name = $_POST["name"];

          }

          if (empty($_POST["gender"])) {

             $genderErr = "Gender is required";

          } else {

             $gender = $_POST["gender"];

          }

       }

    }

  echo $name. ' ' .$gender;

?>

Answer 1

试试这个：if ((isset($_POST['name']) && $_POST['name'])&nbsp; == '' || (isset($_POST['gender']) && $_POST['gender'] == '')) {&nbsp; &nbsp; echo('all filed');}你必须把条件，如果设置了，你可以使用调试你的代码：$_POST['gender']echo "<pre>";print_r($_POST);exit;

Answer 2

尝试使用下面的代码，问题是您尝试打印条件之外的值。if ($_SERVER["REQUEST_METHOD"] == "POST") {&nbsp; &nbsp; if (empty($_POST['name']) || empty($_POST['gender'])) {&nbsp; &nbsp; &nbsp; &nbsp; echo('all filed');&nbsp; &nbsp; }&nbsp; &nbsp; else {&nbsp; &nbsp; &nbsp; &nbsp; if (empty($_POST["name"])) {&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; $nameErr = "Name is required";&nbsp; &nbsp; &nbsp; &nbsp; }&nbsp; &nbsp; &nbsp; &nbsp; else {&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; $name = $_POST["name"];&nbsp; &nbsp; &nbsp; &nbsp; }&nbsp; &nbsp; &nbsp; &nbsp; if (empty($_POST["gender"])) {&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; $genderErr = "Gender is required";&nbsp; &nbsp; &nbsp; &nbsp; }&nbsp; &nbsp; &nbsp; &nbsp; else {&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; $gender = $_POST["gender"];&nbsp; &nbsp; &nbsp; &nbsp; }&nbsp; &nbsp; &nbsp; &nbsp; echo $name . ' ' . $gender;&nbsp; &nbsp; }}

Answer 3

根据您的代码，请使用以下条件if (isset($_POST["name"]) && $_POST["name"] != "") {&nbsp; &nbsp; $name = $_POST["name"];&nbsp;&nbsp;} else {&nbsp; &nbsp; $nameErr = "Name is required";}if (isset($_POST["gender"]) && $_POST["gender"] != "") {&nbsp; &nbsp;$gender = $_POST["gender"];&nbsp;&nbsp;} else {&nbsp; &nbsp;$genderErr = "Gender is required";}

Answer 4

您在检查“姓名”和“性别”字段时遇到了错误的情况。您已经在条件中给出了“OR（||）”，因此这意味着任何字段都是空的，它将返回true的条件。您的病情是这样的：if ($_POST['name'] == '' || $_POST['gender'] == '') {&nbsp; &nbsp; echo('all filed');}将其更改为 ：&nbsp;if ($_POST['name'] == '' && $_POST['gender'] == '') {&nbsp; &nbsp; echo('all filed');&nbsp;}我希望你的问题会得到解决。