I currently have my code working to some state.
When the user inputs data name, email and company they submit the form and it will echo the inputs out which is fine, but when I enter invalid data into the form and submit it will still post but displays the else statement.
Have I missed something in my Preg_match or is this just a bad way to code the validation?
<!DOCTYPE html>
<html>
<head>
<title>Visitor Sign in</title>
<meta charset="utf-8" />
<link rel="stylesheet" type="text/css" href="visitor.css"/>
<meta name="viewport" content="width=device-width, initial-scale=1.0, maximum-scale=1.0, user-scalable=no" />
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js" type="text/javascript"></script>
</head>
<body>
<div id="wrapper">
<img src="Wincanton.png" alt="wincantonLogo" class="wincantonLogo" />
<img src="Screwfix.png" alt="screwfixLogo" class="screwfixLogo" />
<div style="clear:both"></div><br>
<?php
// define variables and set to empty values
$nameErr = $emailErr = $companyErr = "";
$fullname = $email = $company = "";
if ($_SERVER["REQUEST_METHOD"] == "POST") {
if (empty($_POST["fullname"])) {
$nameErr = "Name is required";
} else {
$fullname = test_input($_POST["fullname"]);
// check if name only contains letters and whitespace
if (!preg_match("/^[a-zA-Z ]*$/",$fullname)) {
$nameErr = "Only letters and white space allowed";
}
}
if (empty($_POST["email"])) {
$emailErr = "Email is required";
} else {
$email = test_input($_POST["email"]);
// check if e-mail address is well-formed
if (!preg_match("/^\w+([\.-]?\w+)*@\w+([\.-]?\w+)*(\.\w{2,3})+$/",$email)) {
$emailErr = "Invalid email format";
}
}
if (empty($_POST["company"])) {
$companyErr = "Name is required";
} else {
$company = test_input($_POST["company"]);
// check if name only contains letters and whitespace
if (!preg_match("/^[a-zA-Z ]*$/",$company)) {
$companyErr = "Only letters and white space allowed";
}
}
}
function test_input($data) {
$data = trim($data);
$data = stripslashes($data);
$data = htmlspecialchars($data);
return $data;
}
?>
<h1>Visitor Sign in</h1><br>
<form method="post" action="<?php echo htmlspecialchars($_SERVER["PHP_SELF"]);?>">
Name: <input type="text" name="fullname" >
<span class="error">* <?php echo $nameErr;?></span>
<br><br>
E-mail: <input type="text" name="email">
<span class="error">* <?php echo $emailErr;?></span>
<br><br>
Company: <input type="text" name="company">
<span class="error"><?php echo $companyErr;?></span>
<br><br>
<br><br>
<input type="submit" name="submit" value="Submit">
</form>
<?php
echo "<h2>Your Input:</h2>";
echo $fullname;
echo "<br>";
echo $email;
echo "<br>";
echo $company;
echo "<br>";
?>
</body>
</html>
try if isset condition.
if(isset($_POST['submit'])){
}