This page explains about time real-time form with actions. Below
example will take input fields as text, radio button, drop down menu,
and checked box.
Example
<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>It will produce the following result −
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