save values from editable table using php

Question

Hi I have a table generated from php, it is editable, I want to save edited values to database. I have no Idea how can I do this as there are many rows(dynamic) on a page. Here is a screen-shot:-

Please suggest

Edit:-

My code is

    echo "<table border='1'>
<tr>
<th>Sl Number</th>
<th>Product Id</th>
<th>Product Name</th>
<th>Product Catagory</th>
<th>Retal Price</th>
<th>Max Price</th>
<th>Min Price</th>
<th>Initial Stock</th>
<th>Quantity Sold</th>
<th>Current Stock</th>
<th>Last Order</th>
<th>Edit/Update</th>
</tr>";
while($row = $result->fetch_assoc())
{
        echo "<tr contenteditable>";
    echo "<td>" . $row["Row Number"]. "</td>";
    echo "<td>" . $row["Product Id"]. "</td>";
    echo "<td>" . $row["Product Name"]. "</td>";
    echo "<td>" . $row["Product Catagory"]. "</td>";
    echo "<td>" . $row["Retal Price"]. "</td>";
    echo "<td>" . $row["Max Price"]. "</td>";
    echo "<td>" . $row["Min Price"]."</td>";
    echo "<td>" . $row["Initial Stock"]."</td>";
    echo "<td>" . $row["Quantity Sold"]. "</td>";
    echo "<td>" . $row["Current Stock"]."</td>";
    echo "<td>" . $row["Last Order"]."</td>";
    echo "<td contenteditable = 'false'><button href = '#'>Update</a></td>";
        echo "</tr>";   
}

Answer 1

Let me give you with the best way First your database tables have spaces: correct that e.g.

from $row["Initial Stock"] to $row["Initial_Stock"]

Then i will propose you use ajax instead of wasting time clicking buttons

The HTML Page

<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.0.0-beta1/jquery.min.js"></script>
 <script>
$(function(){

    $("#loading").hide();
    //acknowledgement message
    var message_status = $("#status");
    $("td[contenteditable=true]").blur(function(){
        var field_userid = $(this).attr("id") ;
        var value = $(this).text() ;



        $.post('update.php' , field_userid + "=" + value, function(data){



            if(data != '')
            {
                message_status.show();
                message_status.text(data);
                //hide the message
                setTimeout(function(){message_status.hide()},1000);
            }
        });
    });




});
</script>


<style>
table.zebra-style {
    font-family:"Lucida Sans Unicode", "Lucida Grande", Sans-Serif;
    text-align:left;
    border:1px solid #ccc;
    margin-bottom:25px;
    width:100%
}
table.zebra-style th {
    color: #444;
    font-size: 13px;
    font-weight: normal;
    padding: 5px 4px;

}
table.zebra-style td {
    color: #777;
    padding: 4px;
    font-size:13px;

}
table.zebra-style tr.odd {
    background:#f2f2f2;
}


#status { padding:10px; position:fixed; top:10px; border-radius:5px; z-index:10000000; background:#88C4FF; color:#000; font-weight:bold; font-size:12px; margin-bottom:10px; display:none; width:100%; }
#loading { padding:10px; position:absolute; top:10px; border-radius:5px; z-index:10000000; background:#F99; color:#000; font-weight:bold; font-size:12px; margin-bottom:10px; display:none; width:100%; }
</style>

 <div id="status"> </div>
 <div id="loading"></div>





<table id="tableID" border="0"  class="sortable table zebra-style">


<thead>
  <tr>
    <th>Sl Number</th>
    <th>Product Id</th>
    <th>Product Name</th>
    <th>Product Catagory</th>
    <th>Retal Price</th>
    <th>Max Price</th>
    <th>Min Price</th>
    <th>Initial Stock</th>
    <th>Quantity Sold</th>
    <th>Current Stock</th>
    <th>Last Order</th>
    <th>Edit/Update</th>
  </tr>
</thead>
<tbody  class="list">
  <?php do { ?>


  <tr>
    <td contenteditable="true" id="Row_Number:<?php echo $row["Row_Number"]; ?>"><?php echo $row["Row_Number"]; ?></td>
    <td contenteditable="true" id="Product_Id:<?php echo $row["Product_Id"]; ?>"><?php echo $row["Product_Id"]; ?></td>
    <td contenteditable="true" id="Product_Name:<?php echo $row["Product_Name"]; ?>"><?php echo $row["Product_Name"]; ?></td>
    <td contenteditable="true" id="Product_Catagory:<?php echo $row["Product Id"]; ?>"><?php echo $row["Product_Catagory"]; ?></td>
    <td contenteditable="true" id="Retal_Price:<?php echo $row["Retal_Price"]; ?>"><?php echo  $row["Retal_Price"]; ?></td>
    <td contenteditable="true" id="Max_Price:<?php echo $row["Max_Price"]; ?>"><?php echo $row["Max_Price"]; ?></td>
    <td contenteditable="true" id="Min_Price:<?php echo $row["Min_Price"]; ?>"><?php echo  $row["Min_Price"]; ?></td>
    <td contenteditable="true" id="Initial_Stock:<?php echo $row["Initial_Stock"]; ?>"><?php echo  $row["Initial_Stock"]; ?></td>
    <td contenteditable="true" id="Quantity_Sold:<?php echo $row["Quantity_Sold"]; ?>"><?php echo  $row["Quantity_Sold"]; ?></td>
    <td contenteditable="true" id="Last_Order:<?php echo $row["Last_Order"]; ?>"><?php echo  $row["Last_Order"]; ?></td>
    <td contenteditable="true" id="Last_Order:<?php echo $row["Last_Order"]; ?>"><?php echo  $row["Last_Order"]; ?></td>
    <td contenteditable = 'false'></td>";



    </tr>

    <?php } while($row = $result->fetch_assoc()) ?>
 </tbody>
</table>

And the update php page

   <?php  


$db = new PDO('mysql:host=localhost;dbname=testdb;charset=UTF-8', 
                  'username', 
                  'password',
                  array(PDO::ATTR_EMULATE_PREPARES => false,
                  PDO::ATTR_ERRMODE => PDO::ERRMODE_EXCEPTION));


?>

<?php
if(!empty($_POST))
{
    //database settings

    foreach($_POST as $field_name => $val)
    {
        //clean post values
        $field_id = strip_tags(trim($field_name));

        //from the fieldname:user_id we need to get user_id
        $split_data = explode(':', $field_id);
        $product_id = $split_data[1];
        $field_name = $split_data[0];
        if(!empty($product_id) && !empty($field_name) && !empty($val))
        {

            $affected_rows = $db->exec("UPDATE yourtable SET $field_name = '$val' WHERE product_ID = $product_id");
            echo $affected_rows;

            echo "Updated";
        } else {
            echo "Invalid Requests";
        }
    }
} 

else {
    echo "Invalid Requests";
}
?>