Databases
StackOverflow2013
Postsdbo
POHow to stop form submit button from refreshing page?
 

Note that there are some explanatory texts on larger screens.

plurals
  1. POHow to stop form submit button from refreshing page?
    primarykey
    data
    text
    <p>I am using a php self-validating form and I need to stop the submit button from refreshing the page because I need to stay on the index page at all times (i'm using ajax to load content onto the main page). I've tried the following snippet of code but it overrides the php validation and displays a thank you message even if the form is left empty... Can I just use php to stop the refresh and print a thank you message to screen? my site is at www.vgtesting.co.nf</p> <pre><code> $(function () { $('form').on('submit', function (e) { $.ajax({ type: 'post', url: 'contact.php', data: $('form').serialize(), success: function () { alert('Thank you! your form has been submitted'); } }); e.preventDefault(); }); }); &lt;?php function test_input($data) { $data = trim($data); $data = stripslashes($data); $data = htmlspecialchars($data); return $data; } // define variables and set to empty values $firstnameErr = $lastnameErr = $emailErr = $cellphoneErr = $genDerErr = $dognameErr = $BreedErr = $reasonErr = ""; $firstname = $lastname = $email = $cellphone = $genDer = $dogname = $Breed = $reasoNwalk = $reasoNgroom = $reasoNfood = $reasoNtraining = $freecomments = ""; $formValid = true; // Define a boolean and set to true before validating //if conditional statement stops PHP from looking for variable values until the submit button is hit if ($_SERVER["REQUEST_METHOD"] == "POST") { // check if a first name was provided if (empty($_POST["firstname"])) { $firstnameErr = "A first name is required"; $formValid = false; // Invalid input - set the flag to false } else { $firstname = test_input($_POST["firstname"]); // check if name only contains letters and whitespace if (!preg_match("/^[a-zA-Z ]*$/",$firstname)) { $firstnameErr = "Only letters and white space allowed"; $formValid = false; // Invalid input - set the flag to false } } //check if a last name was provided if (empty($_POST["lastname"])) { $lastnameErr = "A last name is required"; $formValid = false; // Invalid input - set the flag to false } else { $lastname = test_input($_POST["lastname"]); // check if name only contains letters and whitespace if (!preg_match("/^[a-zA-Z ]*$/",$lastname)) { $lastnameErr = "Only letters and white space allowed"; $formValid = false; // Invalid input - set the flag to false } } // check if an email was provided if (empty($_POST["email"])) { $emailErr = "Email is required"; $formValid = false; // Invalid input - set the flag to false } else { $email = test_input($_POST["email"]); // check if e-mail address syntax is valid if (!preg_match("/([\w\-]+\@[\w\-]+\.[\w\-]+)/",$email)) { $emailErr = "Invalid email format"; $formValid = false; // Invalid input - set the flag to false } } if (empty($_POST["cellphone"])) { $cellphoneErr = "Please provide a phone number"; $formValid = false; // Invalid input - set the flag to false } else { $cellphone = test_input($_POST["cellphone"]); // Regular Expression to allow only valid phone number formats, including numbers, spaces, dashes, extensions if (!preg_match("/^(?:(?:\+?1\s*(?:[.-]\s*)?)?(?:\(\s*([2-9]1[02-9]|[2-9][02-8]1|[2-9][02-8][02-9])\s*\)|([2-9]1[02-9]|[2-9][02-8]1|[2-9][02-8][02-9]))\s*(?:[.-]\s*)?)?([2-9]1[02-9]|[2-9][02-9]1|[2-9][02-9]{2})\s*(?:[.-]\s*)?([0-9]{4})(?:\s*(?:#|x\.?|ext\.?|extension)\s*(\d+))?$/",$cellphone)) { $cellphoneErr = "Invalid format"; $formValid = false; // Invalid input - set the flag to false } } if (empty($_POST["dogname"])) { $dognameErr = "A doggy name is required"; $formValid = false; // Invalid input - set the flag to false } else { $dogname = test_input($_POST["dogname"]); // check if dogname only contains letters and whitespace if (!preg_match("/^[a-zA-Z ]*$/",$dogname)) { $dognameErr = "Only letters and white space allowed"; $formValid = false; // Invalid input - set the flag to false } } if (empty($_POST["Breed"])) { $BreedErr = "A breed name is required"; $formValid = false; // Invalid input - set the flag to false } else { $Breed = test_input($_POST["Breed"]); // check if name only contains letters and whitespace if (!preg_match("/^[a-zA-Z ]*$/",$Breed)) { $BreedErr = "Only letters and white space allowed"; $formValid = false; // Invalid input - set the flag to false } } if(empty($_POST['genDer'])) { $genDerErr= "You forgot to select a Gender!"; $formValid = false; // Invalid input - set the flag to false } else { $genDer=($_POST['genDer']); } //make sure one of the services requested check-boxes are checked $reasoNwalk=test_input($_POST["reasoNwalk"]); $reasoNfood=test_input($_POST["reasoNfood"]); $reasoNgroom=test_input($_POST["reasoNgroom"]); $reasoNtraining=test_input($_POST["reasoNtraining"]); $require_one_of = array('reasoNwalk','reasoNfood','reasoNgroom', 'reasoNtraining'); //names of posted checkboxes $one_set=false; foreach($require_one_of as $key){ if(isset($_POST[$key])){ $one_set=true; break; } } if(!$one_set){ $reasonErr = "You forgot to select a service!"; //error handling } // if comment section is not empty then run test_input function to purge possible malicious code if (empty($_POST["freecomments"])) {$freecomments = "";} else {$freecomments = test_input($_POST["freecomments"]);} } // wrap the MySQL logic inside a condition so form is only submitted when validation is met if ($formValid) { $host="fdb3.biz.nf"; //localhost $dbuser="1546259_rsginfo"; //user $dbpass="RSGnow12"; //pass $dbname="1546259_rsginfo"; //db name // Create connection $conn=mysqli_connect($host,$dbuser,$dbpass,$dbname); // Check connection if (mysqli_connect_errno($conn)) { echo "Failed to connect to MySQL: " . mysqli_connect_error(); } //create query $sql= "INSERT INTO customer (fname, lname, email, phone, comments)VALUES ('$firstname', '$lastname', '$email', '$cellphone', '$freecomments')"; $sql2= "INSERT INTO DogInfo (DogName, Breed, Gender, walk, groom, food, training )VALUES ('$dogname', '$Breed','$genDer', '$reasoNwalk', '$reasoNgroom', '$reasoNfood', '$reasoNtraining')"; // execute query mysqli_query($conn,$sql); mysqli_query($conn, $sql2); // close connection mysqli_close($conn); } ?&gt; </code></pre>
    singulars
    1. PO
      singulars
      1. PTAnswer
    1. This table or related slice is empty.
    1. PTQuestion
    1. USVynce82
    1. USVynce82
    plurals
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. PO
      singulars
      1. PTAnswer
    1. VO
      singulars
      1. POHow to stop form submit button from refreshing page?
      1. This table or related slice is empty.
      1. VTUpMod
    1. COPHP is server-side. It can't affect the client side until the request completes.
      singulars
      1. POHow to stop form submit button from refreshing page?
      1. USIzkata
    2. COEverything here looks correct, anyway. Your PHP page must not be returning failure.
      singulars
      1. POHow to stop form submit button from refreshing page?
      1. USIzkata
    3. COI don't understand, I guess i need to take a step back
      singulars
      1. POHow to stop form submit button from refreshing page?
      1. USVynce82
 

Querying!

 
Guidance
A row detail

Detail views are divided into sections. All the information in the data section comes from columns in the selected row. The other sections display data from other, related rows.

Related data can be related in a to-one or a to-many fashion. Captions of data related in a to-many fashion link to a list view showing a filtered view of the table.

Try moving around until you find a non-empty to-many entry and click on the label to get to one. You can move back to the root by clicking on the database name in the header.

SQuiL has stopped working due to an internal error.

If you are curious you may find further information in the browser console, which is accessible through the devtools (F12).

Reload