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    copied!<p>Here is a <a href="http://www.w3schools.com/PHP/php_ajax_database.asp" rel="nofollow noreferrer">good example</a>, it shows a <code>SELECT</code> statement but it should be straight forward and easy to update the script to what you need.</p> <p><strong>HTML from the example page:</strong></p> <pre><code>&lt;html&gt; &lt;head&gt; &lt;script src="selectuser.js"&gt;&lt;/script&gt; &lt;/head&gt; &lt;body&gt; &lt;form&gt; Select a User: &lt;select name="users" onchange="showUser(this.value)"&gt; &lt;option value="1"&gt;Peter Griffin&lt;/option&gt; &lt;option value="2"&gt;Lois Griffin&lt;/option&gt; &lt;option value="3"&gt;Glenn Quagmire&lt;/option&gt; &lt;option value="4"&gt;Joseph Swanson&lt;/option&gt; &lt;/select&gt; &lt;/form&gt; &lt;p&gt; &lt;div id="txtHint"&gt;&lt;b&gt;User info will be listed here.&lt;/b&gt;&lt;/div&gt; &lt;/p&gt; &lt;/body&gt; &lt;/html&gt; </code></pre> <p><strong>javaScript:</strong></p> <pre><code>var xmlHttp; function showUser(str) { xmlHttp=GetXmlHttpObject(); if (xmlHttp==null) { alert ("Browser does not support HTTP Request"); return; } var url="getuser.php"; url=url+"?q="+str; url=url+"&amp;sid="+Math.random(); xmlHttp.onreadystatechange=stateChanged; xmlHttp.open("GET",url,true); xmlHttp.send(null); } function stateChanged() { if (xmlHttp.readyState==4 || xmlHttp.readyState=="complete") { document.getElementById("txtHint").innerHTML=xmlHttp.responseText; } } function GetXmlHttpObject() { var xmlHttp=null; try { // Firefox, Opera 8.0+, Safari xmlHttp=new XMLHttpRequest(); } catch (e) { //Internet Explorer try { xmlHttp=new ActiveXObject("Msxml2.XMLHTTP"); } catch (e) { xmlHttp=new ActiveXObject("Microsoft.XMLHTTP"); } } return xmlHttp; } </code></pre> <p><strong>PHP called by Ajax:</strong></p> <pre><code>&lt;?php $q = $_GET["q"]; $con = mysql_connect('localhost', 'peter', 'abc123'); if (!$con) { die('Could not connect: ' . mysql_error()); } mysql_select_db("ajax_demo", $con); $sql = "SELECT * FROM user WHERE id = '" . $q . "'"; $result = mysql_query($sql); echo "&lt;table border='1'&gt; &lt;tr&gt; &lt;th&gt;Firstname&lt;/th&gt; &lt;th&gt;Lastname&lt;/th&gt; &lt;th&gt;Age&lt;/th&gt; &lt;th&gt;Hometown&lt;/th&gt; &lt;th&gt;Job&lt;/th&gt; &lt;/tr&gt;"; while ($row = mysql_fetch_array($result)) { echo "&lt;tr&gt;"; echo "&lt;td&gt;" . $row['FirstName'] . "&lt;/td&gt;"; echo "&lt;td&gt;" . $row['LastName'] . "&lt;/td&gt;"; echo "&lt;td&gt;" . $row['Age'] . "&lt;/td&gt;"; echo "&lt;td&gt;" . $row['Hometown'] . "&lt;/td&gt;"; echo "&lt;td&gt;" . $row['Job'] . "&lt;/td&gt;"; echo "&lt;/tr&gt;"; } echo "&lt;/table&gt;"; mysql_close($con); ?&gt; </code></pre>
 

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