dynamic dropdown is not working

[rpv_sen]

Hi friends

i am trying to display dynamic dropdown using php. but it is not fetching the second dropdown value. I collected the below code from internet.

please help me to fix it.

<?php

    $dbc = mysqli_connect("localhost","root","escape123","tsheet");

    // Check connection
    if (mysqli_connect_errno())
        {
            echo "Failed to connect to MySQL: " . mysqli_connect_error();
        }

    $tAOptions='';  $cNOptions=''; $pNameoptions='';
    /*Task Drop Down*/

    $tAsk = "select * from ce_task order by tas_id asc";
    $rowtAsk = mysqli_query($dbc, $tAsk);

    while ($tARow = mysqli_fetch_array($rowtAsk)) 
    {
        $tAOptions .="<option value=\"".$tARow['tas_name']."\">" . $tARow['tas_name'] . "</option>";
    }
    $tADropDown =   "<select name='Task' id='Task'>
                    <option selected='selected' disabled='disabled' value=''>Select Task</option>
                    " . $tAOptions . "
                    </select></br>";


    /*Clent Name*/

    $cName = "select distinct(client_name) from ce_client order by client_id asc";
    $rowcName = mysqli_query($dbc, $cName);

    while ($CNRow = mysqli_fetch_array($rowcName)) 
    {
        $cNOptions .="<option value=\"".$CNRow['client_name']."\">" . $CNRow['client_name'] . "</option>";
    }
    $clentName  =   "<select name='clentName' id='clentName' onChange='getclientName(this)'>
                    <option selected='selected' disabled='disabled' value=''>Select Client Name</option>
                    " . $cNOptions . "
                    </select></br>";
    /*Project Name*/
    $projectName = "<select name='projectName' id='projectName'>
                                <option class='toggle_control' selected='selected' disabled='disabled' value=''>Select Type</option>
                                " . $pNameoptions . "
                            </select></br>";
?>
<script src="http://code.jquery.com/jquery-1.6.1.js" type="text/javascript"></script>
<script type="text/javascript">
    function getclientName(sel) {
        var pid = $(sel).val();
        alert(pid);
        $.ajax({
        type: "POST",
        url: "getprojectName.php",
        data:"client_name="+pid,

        success: function(data){
                alert(data);
                 $("#projectName").html(data);
                //$("#selectedComponentType").html(data);
        }
        });
    }

    $(function() {
        var $timeTB = $("#time_tb"),
            $firstTRCopy = $timeTB.children('tr').first().clone();
        $("#addRows").click(function() {
            $timeTB.append($firstTRCopy.clone());
        });
    });
</script>
<table id="time_table">
    <thead>
        <tr>
            <th>Client Name</th>
            <th>Project Name</th>
            <th>Task</th>
        </tr>
    </thead>
    <tbody id="time_tb">
        <tr>
            <td><?php echo $clentName; ?></td>
            <td><?php echo $projectName; ?></td> 
            <td><?php echo $tADropDown;?></td>
        </tr>
    </tbody>
</table>
<input type="button" value="+" id="addRows" />

getprojectName.php

$dbc = mysqli_connect("localhost","root","escape123","tsheet");

    // Check connection
    if (mysqli_connect_errno())
      {
        echo "Failed to connect to MySQL: " . mysqli_connect_error();
      }

    $pNameoptions = '';
    echo $cliName = $_POST['client_name'];

    $pNameQuery = "select * from ce_client where client_name='$cliName'";
    $pNamerow = mysqli_query($dbc, $pNameQuery);

    while ($pNRow = mysqli_fetch_array($pNamerow)) {
         $pNameoptions .="<option value=\"".$pNRow['client_project']."\">" . $pNRow['client_project'] . "</option>";
    }

    $projectName = "<select name='projectName' id='projectName'>
                                <option class='toggle_control' selected='selected' disabled='disabled' value=''>Select Type</option>
                                " . $pNameoptions . "
                            </select></br>";

[diafol]

Many things here rpv. Here's the one that stood out:

WHy is your ce_client (project name) table holding client_name instead of client_id as a foreign key?

I started fixing your code until I got to the last snippet, then I saw that and stopped.

[rpv_sen]

Thanks

I have all the thing in one table.

if possible can you please suggest your idea.

[diafol]

Can you show the schema of your tables?

[rpv_sen]

CREATE TABLE IF NOT EXISTS ce_client (
client_id int(11) NOT NULL,
client_name varchar(150) NOT NULL,
client_project varchar(150) NOT NULL
) ENGINE=InnoDB AUTO_INCREMENT=285 DEFAULT CHARSET=latin1;

values
INSERT INTO ce_client (client_id, client_name, client_project) VALUES
(14, 'ANE', '001 Implementation'),
(15, 'ANE', '002 Non-Billable'),
(16, 'XXX', '001 Client Holiday'),
(17, 'XXX', '002 001 Production Support'),
(18, 'XXX', '003 Implementation'),
(19, 'XXX', '004 Non-Billable'),

[diafol]

OK, I see a few issues here already. What about ce_task?

[rpv_sen]

Its another table it was not dependend one.1 and 2 are dependent.

CREATE TABLE IF NOT EXISTS ce_task (
tas_id int(11) NOT NULL,
tas_name varchar(150) NOT NULL
) ENGINE=InnoDB AUTO_INCREMENT=23 DEFAULT CHARSET=latin1;

values

INSERT INTO ce_task (tas_id, tas_name) VALUES
(1, 'Adm - Administrative\r\n'),
(2, 'Bill - Billing\r\n'),
(3, 'CNC001 - CNC\r\n'),
(4, 'DBA - VCP - DBA\r\n'),
(5, 'DBA001 - Development\r\n'),
(6, 'FUN - VCP - functional\r\n'),
(7, 'FUN001 - Functional\r\n'),
(8, 'HOL001 - Holiday\r\n'),
(9, 'IMP - Implementation\r\n'),
(10, 'Mktg - Marketing\r\n'),
(11, 'Mtgs - Meetings\r\n'),
(12, 'NewBiz - New Business\r\n'),
(13, 'PMT001 - Project Management\r\n'),
(14, 'Pres - Presentations\r\n'),
(15, 'Prop - Proposals\r\n'),
(16, 'QA001 - Quality Assurance\r\n'),
(17, 'Rsrch - Research\r\n'),
(18, 'TCH001 - Technical\r\n'),
(19, 'TES001 - Tech Support\r\n'),
(20, 'Trvl - Travel\r\n'),
(21, 'UNA001 - Unassigned\r\n'),
(22, 'VCP - VCP - Technical\r\n');

[diafol]

THis doesn't make much sense to me.

Your client / project table has client_id, client_name and client_project

To what does the client_id refer? The client or the project?

To my mind you need a client table (client_id, client_name), and a projects table (having a project_id, project_name, client_id FK).

The 'client_project' field looks as though it is made from more than one discrete bits of data, which breaks 1NF (1st normal form).

Tasks table is beyond me - I can't see where or how that fits in with anything.

[rpv_sen]

thanks.