submitting form from jquery to php - php

Question

I'm going crazy! I'm trying to submit a form from jquery to php and insert a record in my database. I'm getting no error, but no record is being submitted. All works fine when I just go to the php page and put variables in the URL. But it doesn't work when I submit the variables via the jquery page. Can anyone help me out, please?
HTML:
<form id="tellusForm" >
<div class="formHead">Tell us your story</div>
<div id="thank">Thank you.</div>
<table cellpadding="5">
<tr><td>Name:</td><td><input id="tellName" type="text"/></td></tr>
<tr><td>Country of origin:</td><td><select id="tellCountry"></select></td></tr>
<tr><td>Age:</td><td><input type="text" id="tellAge"/></td></tr>
<tr><td>Occupation:</td><td><input type="text" id="tellOccupation"/></td></tr>
<tr><td>Email address:</td><td><input type="text" id="tellEmail"/></td></tr>
<tr><td>Phone number:</td><td><input type="text" id="tellPhone"/></td></tr>
<tr><td>A bit about you:</td><td><textarea id="tellAbout" style="width: 100%;"></textarea></td></tr>
<tr><td></td><td><input type="submit" value="Send" class="submit"/></td></tr>
</table>
</form>
jquery:
$('.submit').click(function(){
$.get('tellus.php', { name: "laura"}, function(data){
eval(data);
});
});
tellus.php:
<?php
require_once ('../constants_test.php');
$name = $_GET['name'];
$db = new mysqli(DB_HOST, DB_USER, DB_PASSWORD, DB_NAME);
if (mysqli_connect_errno()) {
printf("Connect failed: %s", mysqli_connect_error());
exit;
}
$q = "Insert into tellus(`Name`) values ('" . $name . "')";
if ($db->query($q)) {
echo "console.log('you got it')";
};
$db->close();
?>

Answer 1

Thanks everyone who tried to help me! I ended up having to do it this way:
$.post("./tellus.php", {tellName:name}, function(data){
alert(data)
});
The ajax call must have had something that wasn't working.

Answer 2

Use serialize():
$("#tellusForm").on("submit", function() {
event.preventDefault();
$.ajax({
url: 'tellus.php',
data: $(this).serialize()
}).done(function(data) {
$(html).append(data);
});
});
Also make sure to have names on your form elements:
<input type="text" name="tellAge" id="tellAge" />
This topic is very common here so try searching for other posts - e.g. Submit form using AJAX and jQuery could work too.

Answer 3

The ajax call wasn't working because you are using $.serialize to serialize your form objects, which will return ;
{key:'tellName', value='name'} // <input name="tellName" value="name" />
whereas you are expecting a key:value pair. In order to get the data to send what you expecting, you should modify the object using this jQuery function:
$.fn.serializeObject = function(){
var o = {};
var a = this.serializeArray();
$.each(a, function() {
if (o[this.name]) {
if (!o[this.name].push) {
o[this.name] = [o[this.name]];
}
o[this.name].push(this.value || '');
} else {
o[this.name] = this.value || '';
}
});
return o;
}
And call it whenever you're submitting form. It will structure your form to have the key:value pair.
<form id="register">
<input type="text name="username" />
<input type="text" name="email" />
<input type="submit value="Register!" />
</form>
and the javascript (remember to include the serializeObject function)
$('#register').on('submit', function(){
var data = $(this).serializeObject()
// data will return {username: value, email:value}
$.post('process.php', data, function(response){
try{
var r = JSON.parse(response) // Check if the response is an object
console.log(JSON.stringify(r))
}
catch(e){
console.log(response) // The response is a string
}
})
})
Cheers!

Answer 4

I suggest you should use POST for actions which include insert/delete/update of data in database. It keeps the data safe.
If you want to still use GET and test out something. I suggest do not use jquery in the middle to handle the get. Submit button on click submits the form anyway, so the jquery $.get is unnecessary.
To your form element add
<form name='' action='tellus.php'>...</form>
This should fix the problem.

Answer 5

How about this one
jquery
$("#submit").click(function() {
formData = {
name: "abc"
}
$.ajax({
type: 'GET',
contentType: 'application/json',
url: "http://yourpage/tellus.php",
dataType: "json",
data: formData,
success: function(data) {
console.log(data.message);
},
error: function(data) {
console.log(data.message);
}
});
});
php
<?php
// array for JSON response
$response = array();
// check for required fields
if (isset($_GET['name'])) {
$name = $_GET['name'];
// include db connect class
require_once ('../constants_test.php');
// connecting to db
$db = new mysqli(DB_HOST, DB_USER, DB_PASSWORD, DB_NAME);
if (mysqli_connect_errno()) {
printf("Connect failed: %s", mysqli_connect_error());
exit;
}
// mysqli inserting a new row
$q = "INSERT INTO tellus('Name') values ('" . $name . "')";
// check if row inserted or not
if ($db->query($q)) {
// successfully inserted into database
$response["success"] = 1;
$response["message"] = "you got it";
// echoing JSON response
echo json_encode($response);
$db->close();
} else {
// failed to insert row
$response["success"] = 0;
$response["message"] = "Oops! An error occurred.";
// echoing JSON response
echo json_encode($response);
$db->close();
}
} else {
// required field is missing
$response["success"] = 0;
$response["message"] = "Required field(s) is missing";
// echoing JSON response
echo json_encode($response);
}
?>