PHP完整表单

本页面通过操作解释了实时形式的时间。下面的例子将输入字段作为文本，单选按钮，下拉菜单和复选框。

例

<html>

   <head>
      <style>
         .error {color: #FF0000;}
      </style>
   </head>

   <body>
      <?php
         // define variables and set to empty values
         $nameErr = $emailErr = $genderErr = $websiteErr = "";
         $name = $email = $gender = $class = $course = $subject = "";

         if ($_SERVER["REQUEST_METHOD"] == "POST") {
            if (empty($_POST["name"])) {
               $nameErr = "Name is required";
            }else {
               $name = test_input($_POST["name"]);
            }

            if (empty($_POST["email"])) {
               $emailErr = "Email is required";
            }else {
               $email = test_input($_POST["email"]);

               // check if e-mail address is well-formed
               if (!filter_var($email, FILTER_VALIDATE_EMAIL)) {
                  $emailErr = "Invalid email format";
               }
            }

            if (empty($_POST["course"])) {
               $course = "";
            }else {
               $course = test_input($_POST["course"]);
            }

            if (empty($_POST["class"])) {
               $class = "";
            }else {
               $class = test_input($_POST["class"]);
            }

            if (empty($_POST["gender"])) {
               $genderErr = "Gender is required";
            }else {
               $gender = test_input($_POST["gender"]);
            }

            if (empty($_POST["subject"])) {
               $subjectErr = "You must select 1 or more";
            }else {
               $subject = $_POST["subject"];
            }
         }

         function test_input($data) {
            $data = trim($data);
            $data = stripslashes($data);
            $data = htmlspecialchars($data);
            return $data;
         }
      ?>

      <h2>Absolute classes registration</h2>

      <p><span class = "error">* required field.</span></p>

      <form method = "POST" action = "<?php echo htmlspecialchars($_SERVER["PHP_SELF"]);?>">
         <table>
            <tr>
               <td>Name:</td>
               <td><input type = "text" name = "name">
                  <span class = "error">* <?php echo $nameErr;?></span>
               </td>
            </tr>

            <tr>
               <td>E-mail: </td>
               <td><input type = "text" name = "email">
                  <span class = "error">* <?php echo $emailErr;?></span>
               </td>
            </tr>

            <tr>
               <td>Time:</td>
               <td> <input type = "text" name = "course">
                  <span class = "error"><?php echo $websiteErr;?></span>
               </td>
            </tr>

            <tr>
               <td>Classes:</td>
               <td> <textarea name = "class" rows = "5" cols = "40"></textarea></td>
            </tr>

            <tr>
               <td>Gender:</td>
               <td>
                  <input type = "radio" name = "gender" value = "female">Female
                  <input type = "radio" name = "gender" value = "male">Male
                  <span class = "error">* <?php echo $genderErr;?></span>
               </td>
            </tr>

            <tr>
               <td>Select:</td>
               <td>
                  <select name = "subject[]" size = "4" multiple>
                     <option value = "Android">Android</option>
                     <option value = "Java">Java</option>
                     <option value = "C#">C#</option>
                     <option value = "Data Base">Data Base</option>
                     <option value = "Hadoop">Hadoop</option>
                     <option value = "VB script">VB script</option>
                  </select>
               </td>
            </tr>

            <tr>
               <td>Agree</td>
               <td><input type = "checkbox" name = "checked" value = "1"></td>
               <?php if(!isset($_POST['checked'])){ ?>
               <span class = "error">* <?php echo "You must agree to terms";?></span>
               <?php } ?>
            </tr>

            <tr>
               <td>
                  <input type = "submit" name = "submit" value = "Submit">
               </td>
            </tr>

         </table>
      </form>

      <?php
         echo "<h2>Your given values are as :</h2>";
         echo ("<p>Your name is $name</p>");
         echo ("<p> your email address is $email</p>");
         echo ("<p>Your class time at $course</p>");
         echo ("<p>your class info $class </p>");
         echo ("<p>your gender is $gender</p>");

         for($i = 0; $i < count($subject); $i++) {
            echo($subject[$i] . " ");
         }
      ?>

   </body>
</html>

它会产生以下结果 -

完整的表格