Question

I am trying to dynamically build a table on my page through ajax, using jquery and php. The following is my php code:

<?php
$con = mysql_connect("127.0.0.1","root","");
if (!$con)
{
die('Could not connect: ' . mysql_error());
}

mysql_select_db("tbl_name", $con);

$result = mysql_query("SELECT `Book ISBN` FROM tbl_name");


echo "<table id='booklist'><tr>
                         <th>Edit</th>
                         <th class='coursename'>Course Name</th>
                         <th class='startdate'>Start Date</th>
                         <th class='booktitle'>Book Title</th>
                         <th class='author'>Book Author</th>
                         <th class='isbn'>Book ISBN</th>
                     </tr>";
        while($row = mysql_fetch_array($result))
        { 
            echo    "<tr>
                        <td><input type='checkbox'></input></td>
                        <td class='coursename'>" . $row[`Course Name`] . "</td>
                        <td class='startdate'>" . $row[`Start Date`] . "</td>
                        <td class='booktitle'>" . $row[`Book Title`]. "</td>
                        <td class='author'>" . $row[`Book ISBN`]. "</td>
                        <td class='isbn'><input class='ISBN_number' type='text' value='' size='13' maxlength='13'></input></td> 
                  </tr>";                   
        }               
echo "</table>";

mysql_close($con);
?> 

(Note: the row names have spaces in them (thats how the database came). I used back ticks instead of single quotes because someone online said thats how you can keep the spaces… If I get over this issue I’ll see if that works.)

Next my jquery script:

$(document).ready(function()
   {
        $("#build_table").click(function()
        {
            $.get("build_table.php",
                function(table)
                {   console.log("Entered table function");
                    $("#input_table").replaceWith("<div id='input_table'>" + table + "</div>");
                });
        });
   });

and the html:

<input id="build_table" style="clear:both" type="button" value="Submit"></input>

When I click on this button, though, I get the following php error:
Warning: mysql_fetch_array() expects parameter 1 to be resource, boolean given in C:…pathname…\build_table.php on line 13
What is this error?

Answer 1

The problem lies in your query. Are you sure that your database and table is named tbl_name? Change your statement into this:

$result = mysql_query("SELECT `Book ISBN` FROM tbl_name") or die(mysql_error());

And you’ll get a error message from MySQL.