How to post a JavaScript variable into a MySQL database using AJAX and PHP?
Question
I know this question gets asked a lot, but I went through all the similar questions on here and I still can't fix my script. The Insert query works, but the "Name" shows up as 0 in the database. My JavaScript:
<html>
<head>
<script>
function SendData()
{
var Name = "Ballsack"; //The name I am trying to get into database.
if (window.XMLHttpRequest)
{
// code for IE7+, Firefox, Chrome, Opera, Safari
xmlhttp = new XMLHttpRequest();
}
else
{
// code for IE6, IE5
xmlhttp = new ActiveXObject("Microsoft.XMLHTTP");
}
xmlhttp.open("GET","getuser.php?q="+Name,true);
xmlhttp.send();
alert("The query was send");
}
</script>
</head>
<body>
<form>
<input type="button" value="Send" onClick="SendData();"><br>
</form>
</body>
</html>
My PHP (getuser.php):
<!DOCTYPE html>
<html>
<head>
</head>
<body>
<?php
$q = intval($_GET['q']);
$con = mysqli_connect('localhost','jack','*****','VLA');
if (!$con)
{
die('Could not connect: ' . mysqli_error($con));
}
$query = "INSERT INTO TrafficRegisterDetails
(Name,Surname,Age,Address,TrafficRegNumb,NumberPlate)
VALUES('$q','Sak','12','Kernma','1212','blahblah')";
$result = $con->query($query);
if (!$result) die ("Database access failed: ".$con->error);
mysqli_close($con);
?>
</body>
</html>
2 answers
solution1
1 ACCPTED 2018-10-31 12:23:20
It is because of $q = intval($_GET['q']); .
It change your string to 0. See PHP intval
Good Luck
solution2
0 2018-10-31 12:24:40
You are doing an intval:
$q = intval($_GET['q']);
That's why "Ballsack" turns to 0.
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