I'm trying to insert data to mysql, tried everything but nothing worked
here is my code :
Javascript:
<script type="text/javascript">
$(document).ready(function(){
$("#rating-btn").click( function(){
var teaching=$("#teaching").val;
var marking=$("#marks").val;
var helpfulness=$("#helpfulness").val;
var difficulty=$("#difficulty").val;
var grade=$("#grade").val;
var com=$("#com").val;
$.ajax({
type: "POST",
url:"db/ajax.php",
data:"teaching=" + teaching +"&marking="+ marking +"&helpfulness="+ helpfulness
+"&difficulty="+difficulty+"&grade="+grade+"&com="+com,
dataType: "dataString",
cache: "true",
success: function(msg,string,jqXHR){
$("#results").html(msg+string+jqXHR);
}
});
});
});
ajax.php
<?php
error_reporting(0);
require 'db/connect.php';
$teaching = $_POST['teaching'];
$teaching = mysql_real_escape_string($teaching);
$marking = $_POST['marking'];
$marking = mysql_real_escape_string($marking);
$helpfulness = $_POST['helpfulness'];
$helpfulness = mysql_real_escape_string($helpfulness);
$difficulty = $_POST['difficulty'];
$difficulty = mysql_real_escape_string($difficulty);
$grade = $_POST['grade'];
$grade = mysql_real_escape_string($grade);
$com= $_POST['com'];
$sql = "INSERT INTO ratings VALUES ( '', '{$teaching}', '{$marking}' ,'{$helpfulness}', '{$difficulty}' ,'{$grade}' , '2' , '{$com}')";
mysqli_query($sql);
?>
connect.php
<?php
$db= new mysqli('localhost','root','','instructors');
if($db->connect_errno){
die("we are having some problems");
}
?>
I tried to the sql code and it worked in the phpmyadmin page.
So what is missing that is preventing the data from going into the database?
UPDATE: when i try to echo all the variables and thier values apears normally i also tried to do this :
$sql = "INSERT INTO `ratings` VALUES ( '', '3.5', '2.5' ,'4.5', '2.5' ,'1' , '2' , 'hello how are you')";
it does not insert this values to the database
but when i put the same sql code in the phpmyadmin its adds a row perfectly