PHP Contact Form Validation

Chuks · September 3, 2017

Please, I desiged a contact form with validation, but on running the form the PHP validation codes occupy the input fields,and as well this Input:; echo $name; echo"
"; echo $email; echo"
"; echo $website; echo"
"; echo $message; echo"
"; echo $gender; ?> s

appeared at the bottom .

The following are the HTML and PHP codes:

<!DOCTYPE html>
<html>
<head>
<style>
.error {color: #FF0000;}
</style>
</head>
<body>

<?php
// Define variables and set to empty values
$nameErr = $emailErr = $genderErr = $websiteErr = "";
$name = $email = $website = $message = $gender = "";

if ($_SERVER("REQUEST_METHOD") == "POST") {
    if (empty($_POST["name"])) {
        $nameErr = "Name is required";
   } else {
        $name="test_input($_POST["name"]);
   }
        // Check if name only contains letters and white space
        if (!preg_match("/^[a-zA-Z]*$/" ,$name} {
            $nameErr ="Only letters and white space allowed";
       }
   }

   if (empty($_POST["email"])) {
        $emailErr = "Email is required";
   } else {
       $email = "test_input($_POST["email"];
   }
        // Check whether email address is well formed
        if (!filter_var($email, FILTER_VALIDATE_EMAIL)) {
            $emailErr="Invalid email format";
       }
   }

   if (empty($_POST["website"])) {
        $website == "";
   } else {
        $website = test_input($_POST["website"]);
   }
        // Check if the URL address syntax is valid (this regular expression also allows dashes in the URL
       if (!preg_match("/\b(?:(?:https?|ftp):\/\/|www\.)[-a-z0-9+&@#\/%?=~_|!:,.;]*[-a-z0-9+&@#\/%=~_|]/i",$website)) {
            $websiteErr = "Invalid URL";
       }
   }
   if (empty($_POST["message"])) {
        $message = "";
   } else {
        $messsage = test_input($_POST["message"]);

   if (empty($_POST["gender"])) {
        $genderErr = "Gender is required";
   } else {
        $gender = tesr_input($_POST["gender"]));
   }
}
function test_input($data) {
    $data = trim($data);
   $data = stripslashes($data);
   $data = htmlspecialchars($data);
   return $data;
}
?>

<h2>PHP Form Validation </h2>
<p><span class="error">* required field.</span></p>
<form method="post" action="<?php echo htmlspecialchars($_SERVER["PHP_SELF"]); ?>">
    Name: <input type="text" name="name" value="<?php echo $name; ?>">
   <span class="error">* <?php echo $nameErr;?></span><br><br>

    Email: <input type="text" name="email" value="<?php echo $email; ?>">
   <span class="error">* <?php echo $emailErr;?></span><br><br>

    Website: <input type="text" name="website" value="<?php echo $website; ?>">
   <span class="error"> <?php echo $websiteErr; ?></span><br><br>

   Comment: <textarea name="message" rows="4" cols="40"> <?php echo $message; ?>"></textarea><br><br>

   Gender:
   <input type="radio" name="gender"

   <?php if (isset($gender) && $gender=="male") echo "checked";?> Male<br><br>

    <input type="radio" name="gender"

   <?php if (isset($gender) && $gender=="female") echo "checked";?> Female<br><br>
   <span class="error">* <?php echo $genderErr;?></span><br><br>

    <input type="submit" name="submit" value="Submit">
</form>

<?php
    echo <h2>Your Input:</h2>;
    echo $name;
    echo"<br>";
    echo $email;
    echo"<br>";
    echo $website;
    echo"<br>";
    echo $message;
    echo"<br>";
    echo $gender;
?>

</body>
</html>

And here follows the output on running the above code:

PHP Form Validation

* required field.

"> Name: *

Email: *

Website:

Comment: <?php echo $message; ?>">

Gender: Male

Female

*

Your Input:; echo $name; echo"
"; echo $email; echo"
"; echo $website; echo"
"; echo $message; echo"
"; echo $gender; ?>

Please, I don"t know where my mistake is and need help to get the code work well.

dsonesuk · September 3, 2017

Any html and text content is TEXT and should be treated as such by placing it within quotes.

justsomeguy · September 5, 2017

It sounds like PHP isn't running at all. Are you testing this on a web server with PHP configured, or are you just double-clicking on the file or something?

Bravono · September 5, 2017

Quote

please what is wrong with this coding? am getting this error "Fatal error: Uncaught Error: Call to undefined function test_input() in C:\xampp\htdocs\Signup\www\index.php:30 Stack trace: #0 {main} thrown in C:\xampp\htdocs\Signup\www\index.php on line 30"

<!DOCTYPE html>
<html>
<head>
<style>
.error{color: red;}
</style>
</head>
<body>
<link rel="stylesheet" type="text/css" href="CSS/default.css">
<?php
ini_set('display_error', 1);
// define variables and set to empty values
$nameErr = $emailErr = $passwordErr = $websiteErr = $country = $state = $city ="";

$name = $email = $password = $website = $country = $state = $city ="";

function test_jnput($data)
{
$data = trim($data);
$data = stripslashes($data);
$data = htmlspecialchars ($data);
return $data;
}

if ($_SERVER["REQUEST_METHOD"] == "POST") {

if(empty($_POST["name"])) {
$nameErr = "Name is required";
} else {
$name = test_input($_POST["name"]);
// check if name only contains letters and white space

if (!preg_match("/^[a-zA-Z]*$/",$name)){
$nameErr = "Only letters and white space allowed";
}
}
}
if(empty($_POST["email"])) {
$emailErr = "Email is required";
} else {
$email = test_input($_POST["email"]);
// check if e-mail address is well formed
if(!filter_var($email, FILTER_VALIDATE_EMAIL)) {
$emailErr = "invalid email format";
}
}

if(empty($_POST["website"])) {
$website = "";
} else {
$website = test_input($_POST["website"]);
// check if URL address syntax is valid (this regular expression also allows dashes in the URL)
if (!preg_match("/\b(?:(?:https?|ftp):\/\/|www\.)[-a-z0-9+&@#\/%?=~_|!:,.;]*[-a-z0-9+&@#\/%=~_|]/i",$website)) {
$websiteErr = "invalid URL";
}
}

if(empty($_POST["country"])) {
$country = "";
} else {
$country = test_input($_POST["country"]);
}

?>

<p><span class ="error">* required field.</span></p>
<form method="post" action="<?php echo htmlspecialchars($_SERVER["PHP_SELF"]);?>">
Name: <input type="text" name="name" value="<?php echo $name;?>">
<span class="error">*<?php echo $nameErr;?></span>
<br><br>
E-mail: <input type="text" name="email" value="<?php echo $email;?>">
<span class="error">*<?php echo $emailErr;?></span>
<br><br>
Website: <input type="text" name="website" value="<?php echo $website;?>">
<span class="error"><?php echo $websiteErr;?></span>
<br><br>
Password: <input type="password" name="password" value="<?php echo $password;?>">
<span class="error"><?php echo $passwordErr;?></span>
<br><br>
Country: <input type="text" name="country" value="<?php echo $country;?>">
<span class="error"><?php echo $country;?></span>
<br><br>
State: <input type="text" name="state" value="<?php echo $state;?>">
<span class="error"><?php echo $state;?></span>
<br><br>
City: <input type="text" name="city" value="<?php echo $city;?>">
<span class="error"><?php echo $city;?></span>
<br><br>
<input type="submit" name="submit" value="submit">
</form>

<?php
echo "<h2>Your Input</h2>";
echo $name;
echo "<br>";
echo $email;
echo "<br>";
echo $website;
echo "<br>";
echo $password;
echo "<br>";
echo $country;
echo "<br>";
echo $state;
echo "<br>";
echo $city;
echo "<br>";


?>

<?php
$servername = "localhost";
$username = "root";
$password = "adeshina2344";

// Create connection
$conn = new mysqli($servername, $username, $password);

// Check connection

if ($conn->connect_error) {
die("Connection failed: ". $conn->connect_error);

}

echo "Connection successful";
?>



</body>
</html>

Ingolme · September 6, 2017

In your function declaration you wrote J instead of I.

Quote

function test_jnput($data)

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