mjeshtri mjeshtri - 5 months ago 13
Javascript Question

How to add extra filter options to an Ajax PHP search using mysql

Based on this example http://www.w3schools.com/php/php_ajax_database.asp
i have made some search and found this sample which looks what i need

The HTML

<html>
<head>
<script>
var xmlhttp;

function showUser(str,age)
{
xmlhttp=GetXmlHttpObject();
if (xmlhttp==null)
{
alert ("Browser does not support HTTP Request");
return;
}
var url="getuser.php";
url=url+"?q="+str+"&a="+age+"&c="+c;
url=url+"&sid="+Math.random();
xmlhttp.onreadystatechange=stateChanged;
xmlhttp.open("GET",url,true);
xmlhttp.send(null);
}

function stateChanged()
{
if (xmlhttp.readyState==4)
{
document.getElementById("txtHint").innerHTML=xmlhttp.responseText;
}
}

function GetXmlHttpObject()
{
if (window.XMLHttpRequest)
{
// code for IE7+, Firefox, Chrome, Opera, Safari
return new XMLHttpRequest();
}
if (window.ActiveXObject)
{
// code for IE6, IE5
return new ActiveXObject("Microsoft.XMLHTTP");
}
return null;
}
</script>
</head>
<body>

<form>
Select a User:
<select name="users" id="users">
<option value="1">Marko</option>
<option value="2">Lois Griffin</option>
<option value="3">Glenn Quagmire</option>
<option value="4">Joseph Swanson</option>
</select>

Select an age:
<select name="age" id="age">
<option value="1">1</option>
<option value="40">40</option>
<option value="41">41</option>
<option value="42">42</option>
</select>

<input type="text" name="c" id="c" value="2016-06-01">

<input type='button' value='Refresh Data' onclick="showUser(document.getElementById('users').value,document.getElementById('age').value,document.getElementById('c'))">
</form>
<br />
<div id="txtHint"><b>Person info will be listed here.</b></div>

</body>
</html>


and PHP

<?php
$q=$_GET["q"];
$a=$_GET["a"];
$c=$_GET["c"];

$con = mysql_connect('localhost', 'username', 'password');
if (!$con)
{
die('Could not connect: ' . mysql_error());
}
mysql_select_db("databasename", $con);

$sql="SELECT * FROM data WHERE id = '".$q."' and website = '".$a."' and date = '".$c."'";

$result = mysql_query($sql);

echo "<table border='1'>
<tr>
<th>Firstname</th>
<th>Lastname</th>
<th>Age</th>
<th>Hometown</th>
</tr>";

while($row = mysql_fetch_array($result))
{
echo "<tr>";
echo "<td>" . $row['date'] . "</td>";
echo "<td>" . $row['imp'] . "</td>";
echo "<td>" . $row['rev'] . "</td>";
echo "<td>" . $row['cpm'] . "</td>";
echo "</tr>";
}
echo "</table>";

mysql_close($con);
?>


How can i add the date picker to the search, for the moment it works only with two
<select>
but i want to be able to add a Start date & End date
I tried adding
<input type="text" name="c" id="c" value="2016-06-01">
but could not figured out where the mistake is

Answer

you need to add the c variable as a parameter of your showuser function.

function showUser(str,age, c)
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