javascript json to php variable - php

Question

I am passing some json to a php file but the variables in the php remain empty im sure it is some small syntax error but i am unable to find what is causing this, any help will be greatly appreciated.
JAVASCRIPT
if(score >= 100)
{
console.log("HERE WE GO");
$.ajax({
type: "POST",
url: "FAKENAME.php",
data: { "data": "{ \"id\": " + id + ", \"quiz\": \"" + getDateTime() + "\"}" },
}).done(function (data) {
console.log(JSON.stringify(data) + "This is the data on .done");
//alert( data );
})
.fail(function () {
console.log("error");
//alert( "error" );
})
.always(function (data) {
console.log("finished");
console.log(JSON.stringify(data));
//alert( "finished" );
});
}
PHP
$data = json_decode($_POST['data']);
$sql = $conn->prepare("SELECT * FROM FAKEDATABASETABLENAME WHERE id = :id");//no error
$sql->bindParam(':id', $data->id);
//$sql->bindParam(':quiz', $data->quiz);
$sql->execute(); //syntax error
if(!empty($data->id))
{
$qry = $conn->prepare("UPDATE FAKEDATABASETABLENAME SET Quiz = '2018-06-27 14:44:49' WHERE id = 000007"); //no error and result
$qry->bindParam(':id', $data->id);
$qry->bindParam(':quiz', $data->quiz);
$qry->execute();
}
else
{
$mailto = "FAKEEMAIL.com" ; //Recipent of the email
$from = "From: PHP_DEBUG";
$subject = "PHP_DEBUG";
$data = json_decode($_POST['data']);
$content = "id is: " . $data->id. " plaese note. quiz is: " . $data->quiz. " please note.";
mail($mailto, $subject, $content, $from);
}

Answer 1

if(score >= 100)
{
var params = JSON.stringify({id: id, quiz: getDateTime()})
$.ajax({
type: "POST",
url: "FAKENAME.php",
dataType: "json",
data: {data: params}
}).done(function (data) {
console.log(JSON.stringify(data) + "This is the data on .done");
}).fail(function () {
console.log("error");
//alert( "error" );
}).always(function (data) {
console.log("finished");
console.log(JSON.stringify(data));
//alert( "finished" );
});
}
You can simplify your code like this

Answer 2

var person = {
name: $("#id-name").val(),
address:$("#id-address").val(),
phone:$("#id-phone").val()
}
$('#target').html('sending..');
$.ajax({
url: '/test/PersonSubmit',
type: 'post',
dataType: 'json',
contentType: 'application/json',
success: function (data) {
$('#target').html(data.msg);
},
data: JSON.stringify(person)
});
Please add full url of your php page then you have to check print_r($_POST) like that