PHP - Modulo completo
Questa pagina spiega il modulo in tempo reale con le azioni. L'esempio seguente prenderà i campi di input come testo, pulsante di opzione, menu a discesa e casella selezionata.
Esempio
<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>Produrrà il seguente risultato:
