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POcalling a PHP script from Javascript to insert data to a mysql database
 

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  1. POcalling a PHP script from Javascript to insert data to a mysql database
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    <p>There is a button in my html file upon click I need two things to be done. (Insert data to a database and reload the page) So I call a javascript function in the onclick event.</p> <p>This is the function inside the javascript file:</p> <pre><code>function grandFinale() { if (window.XMLHttpRequest) {// code for IE7+, Firefox, Chrome, Opera, Safari xmlhttp=new XMLHttpRequest(); } else {// code for IE6, IE5 xmlhttp=new ActiveXObject("Microsoft.XMLHTTP"); } xmlhttp.onreadystatechange=function() { if (xmlhttp.readyState==4 &amp;&amp; xmlhttp.status==200) { //document.getElementById("txtHint").innerHTML=xmlhttp.responseText; } } xmlhttp.open("GET","insert.php?q=",true); xmlhttp.send(); document.location.reload(); } </code></pre> <p>This is the insert.php file which is mentioned above</p> <pre><code>&lt;?php $con = mysql_connect("localhost","uname","password"); if (!$con) { die('Could not connect: ' . mysql_error()); } mysql_select_db("SnakeDB", $con); $sql="INSERT INTO masterTable (Name, Score) VALUES ('$_GET[name]','$_POST[txtScore1]')"; if (!mysql_query($sql,$con)) { die('Error: ' . mysql_error()); } echo "1 record added"; mysql_close($con); ?&gt; </code></pre> <p>Here is the part of HTML file which contains the places I want to update to the database</p> <pre><code>&lt;div class="modal-body"&gt; &lt;p&gt;You scored :: &lt;/p&gt;&lt;p id="txtScore1"&gt;&lt;/p&gt; &lt;input type="text" placeholder="Your Name" id="name"&gt; &lt;/div&gt; </code></pre> <p>The issue is the database is not updated!! Only the reloading happens. Please suggest me a solution</p>
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    1. COPlease stop writing new code with the ancient mysql_* functions. They are no longer maintained and community has begun the [deprecation process](http://news.php.net/php.internals/53799). Instead you should learn about prepared statements and use either [PDO](http://php.net/pdo) or [MySQLi](http://php.net/mysqli). If you care to learn, [here is a quite good PDO-related tutorial](http://wiki.hashphp.org/PDO_Tutorial_for_MySQL_Developers).
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    2. COSQL injection issues there also, `$_GET['name']` and `$_POST['txtScore']` are not escaped.
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      1. USGeoffrey
 

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