inserting table row data upon onclick checkbox PHP and Ajax and MySQL
I have read similar topics, yet could not finish my code.
Short is: you tick a checkbox and this unchains an Ajax response that calls a function. This function gets the ID of the logged in user. Once I get the ID of the user, I am alright with the PHP script.
I have rewritten the code snippet; haven't tried it yet. Could say this is closer I hope.
I am using 2 scripts, 1 for the Ajax and the other the PHP.
Ajax:
<html>
<head>
<script type="text/javascript">
function getLoggedInUser()
{
//IF THERE IS NOTHING CHECKED, THAT IS, STR == 0, THEN REMOVE WHATEVER WAS WRITTEN BEFORE
if (str=="")
{
document.getElementById("txtHint").innerHTML="";
return;
}
// JUST CHECKING BROWSER COMPATIBILITY ISSUES FIRST
if (window.XMLHttpRequest)
{// code for IE7+, Firefox, Chrome, Opera, Safari
xmlhttp=new XMLHttpRequest();
}
else
{// code for IE6, IE5
xmlhttp=new ActiveXObject("Microsoft.XMLHTTP");
}
// IF THE SERVER HAS THE RESPONSE READY
xmlhttp.onreadystatechange=function()
{
if (xmlhttp.readyState==4 && xmlhttp.status==200)
{
document.getElementById("txtHint").innerHTML=xmlhttp.responseText;
}
}
THEN ON HAVING TICKED THE CHECKBOX IT SENDS TO THE GETLOGGED IN FN THE USER ID, AND THIS FUNCTION FORWARDS IT TO THE PHP SCRIPT CALLED INSERT USER DATA, WHICH WILL DO JUST THAT.
xmlhttp.open("GET","insertUserData.php?$user="+str,true);
xmlhttp.send();
}
</script>
</head>
<body>
<?php $user = getUserId();?>
<form>
<input type="checkbox" name="asset" value="" onclick="getLoggedInUser($user)" /> I am potentially
interested in this product or service<br />
<div id="txtHint"><b>Note:</b></div>
</form>
<br />
</body>
</html>
======AND HERE THE PHP SCRIPT insertUserData.php ===========
<?php
$user = $_GET['user'];
// But now, as I indicated, we want the data corresponding to that ID
$con = mysql_connect('localhost', 'peter', 'abc123');
if (!$con)
{
die('Could not connect: ' . mysql_error());
}
mysql_select_db("ajax_demo", $con);
$query = "SELECT name, country
FROM profiles
WHERE id = '". $user . "';
$result = @mysql_query ($sql);
$row = mysql_fetch_a开发者_Go百科rray($result, MYSQL_ASSOC);
$name = ($row['name']);
$country = ($row['country']);
mysql_query("INSERT INTO Persons (name, country)
VALUES ($name, $country)");
echo 'Your interest has been saved';
mysql_close($con);
?>
Thank you in advance
at least this:
$user = getUserId();
xmlhttp.open("GET","insertUserData.php?$user="true);
should be changed to :
<? $user = getUserId(); ?>
xmlhttp.open("GET","insertUserData.php?user=$user", true);
it's not a straigh answer to your question but at least a starting point, also, make sure you enable errors by adding the following code at the top of your php file.
ini_set('display_errors', 1);
error_reporting(E_ALL);
加载中,请稍侯......
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