Ví dụ Complete Form trong PHP Ví dụ dưới đây sẽ nhận input field dạng text, radio button, dropdown menu, và checked box... your email address is Your class time at your class info your
Trang 1Ví dụ Complete Form trong PHP
Ví dụ dưới đây sẽ nhận input field dạng text, radio button, dropdown menu, và checked box
Ví d ụ
<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"]))
$emailErr = "Email is required";
}
else
{
Trang 2$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($_POST["subject"]))
Trang 3$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>
Trang 4</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 $genderErr;?></span>
</td>
</tr>
<tr>
<td>Select:</td>
<td>
<select name="subject[]" size="4" multiple>
<option value="Android">Android</option>
<option value="Java">Java</option>
<option value="C#">C#</option>
<option value="Data Base">Data Base</option>
<option value="Hadoop">Hadoop</option>
Trang 5<option value="VB script">VB script</option>
</select>
</td>
</tr>
<tr>
<td>Agree</td>
<td><input type="checkbox" name="checked" value="1"></td>
<?php if(!isset($_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= ; $i < count($subject); $i++)
{
echo($subject[$i] " ");
Trang 6}
?>
</body>
</html>
Nó sẽ cho kết quả:
Absolute classes registration
* required field.
* You must agree to terms
Time:
Classes:
Select:
A n d r o id
J a v a
C #
D a ta B a s e
Agree
S u b m it
Your given values are as :
Your name is
Trang 7your email address is
Your class time at
your class info
your gender is