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form_validation.php
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form_validation.php
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<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<link href="https://cdn.jsdelivr.net/npm/bootstrap@5.1.1/dist/css/bootstrap.min.css" rel="stylesheet" integrity="sha384-F3w7mX95PdgyTmZZMECAngseQB83DfGTowi0iMjiWaeVhAn4FJkqJByhZMI3AhiU" crossorigin="anonymous">
<script src="https://cdn.jsdelivr.net/npm/bootstrap@5.1.1/dist/js/bootstrap.bundle.min.js" integrity="sha384-/bQdsTh/da6pkI1MST/rWKFNjaCP5gBSY4sEBT38Q/9RBh9AH40zEOg7Hlq2THRZ" crossorigin="anonymous"></script>
<title>Registration</title>
<style type="text/css">
.error {
font-size: 15px;
color: red;
}
</style>
</head>
<body>
<?php
$firstnameErr = $lastnameErr = $phoneErr = $emailErr = NULL;
$firstname = $lastname = $phone = $email = NULL;
$flag = true;
if ($_SERVER["REQUEST_METHOD"] == "POST") {
if (empty($_POST["firstname"])) {
$firstnameErr = "First name is required";
$flag = false;
} else {
$firstname = test_input($_POST["firstname"]);
}
if (empty($_POST["lastname"])) {
$lastnameErr = "Last name is required";
$flag = false;
} else {
$lastname = test_input($_POST["lastname"]);
}
if (empty($_POST["phone"])) {
$phoneErr = "Phone is required";
$flag = false;
} else {
$phone = test_input($_POST["phone"]);
}
if (empty($_POST["email"])) {
$emailErr = "Email is required";
$flag = false;
} else {
$email = test_input($_POST["email"]);
}
$country = $_POST["country"];
$state = $_POST["state"];
// submit form if validated successfully
if ($flag) {
$conn = new mysqli('localhost', "raghav", "Raghu@123", "college");
if ($conn->connect_error) {
die("connection failed error: " . $conn->connect_error);
}
$sql = "INSERT INTO student (firstname,lastname,phone, email, country, state) VALUES('$firstname', '$lastname', '$phone', '$email', '$country', '$state') ";
// execute sql insert
if ($conn->query($sql) === TRUE) {
echo "<script> alert('data saved successfully');</script>";
}
}
}
function test_input($data)
{
$data = trim($data);
$data = stripslashes($data);
$data = htmlspecialchars($data);
return $data;
}
?>
<form action=" <?php echo htmlspecialchars($_SERVER['PHP_SELF']); ?>" method="POST">
<div class="card pt-2 mx-auto" style="max-width: 30rem;">
<div class="card-header" style="font-size: 25px;
font-style: italic;">
<header>Registration Form</header>
</div>
<div class="card-body">
<div class="card-text mb-2">
First Name* : <input type="text" name="firstname" class="form-control" placeholder="First Name" value="<?= $firstname; ?>">
<span class="error"> <?= $firstnameErr; ?></span>
</div>
<div class="card-text mb-2">
Last Name* : <input type="text" name="lastname" class="form-control" placeholder="Last Name" value="<?= $lastname; ?>">
<span class="error"> <?= $lastnameErr; ?></span>
</div>
<div class="card-text mb-2">
Phone* : <input type="text" name="phone" class="form-control" placeholder="Please enter your phone" value="<?= $phone; ?>">
<span class="error"> <?= $phoneErr; ?></span>
</div>
<div class="card-text mb-2">
Email-id* : <input type="text" name="email" class="form-control" placeholder="Please enter your Email id" value="<?= $email; ?>">
<span class="error"> <?= $emailErr; ?></span>
</div>
<div class="card-text mb-2">
Country <small>(optional)</small> : <input type="text" name="country" class="form-control" placeholder="Please enter your Country" value="<?= $country; ?>">
</div>
<div class="card-text mb-2" style="background-size: 20px;">
<label>State <small>(optional)</small>:</label> <select class="form-select" name="state" data-bs-toggle="dropdown">
<option value=""> --select state-- </option>
<option <?= $state == 'Delhi' ? 'selected' : '' ?> value="Delhi" >Delhi</option>
<option <?= $state == 'Haryana' ? 'selected' : '' ?> value="Haryana" >Haryana</option>
<option <?= $state == 'Punjab' ? 'selected' : '' ?> value="Punjab" >Punjab</option>
<option <?= $state == 'Himachal Pradesh' ? 'selected' : '' ?> value="Himachal Pradesh" >Himachal Pradesh</option>
</select>
</div>
</div>
<div class="card-footer mb-2 btn-lg">
<input class="button btn btn-primary" type="submit" name="button">
</div>
</div>
</form>
</body>
</html>