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POpassing query on the same page AJAX
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  1. POpassing query on the same page AJAX
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    copied!<p>i'm still fresh in using AJAX and i'm having hard time with it.can you please help me with this? i actually have a dropdown and when i select an item in that dropdown a table of queries should print to the tbody.here's my code:</p> <p><strong>the PHP code:</strong></p> <pre><code>&lt;select id="proj_id" name="proj_id" onchange="myFunction(this.value)"&gt; &lt;option value="none"&gt;---select project---&lt;/option&gt; &lt;?php //Projects $r = @mysql_query("SELECT `proj_id`, `proj_name` FROM `projects`"); while($rows = mysql_fetch_assoc($r)) { $proj_id = $rows['proj_id']; $proj_name = $rows['proj_name']; echo '&lt;option value='.$proj_id.'&gt;'.$proj_name.'&lt;/option&gt;'; } ?&gt; &lt;/select&gt; &lt;table&gt; &lt;thead&gt; &lt;tr&gt; &lt;th&gt;Project Name&lt;/th&gt; &lt;th&gt;Material Name&lt;/th&gt; &lt;th&gt;Quantity&lt;/th&gt; &lt;th&gt;Status&lt;/th&gt; &lt;/tr&gt; &lt;/thead&gt; &lt;tbody id="project_estmat"&gt; &lt;?php //Display Requests $r = @mysql_query("SELECT `proj_name`, `mat_name`, `req_qty`, `stat_desc` FROM `requests` JOIN `projects` USING(`proj_id`) JOIN `materials` USING(`mat_id`) JOIN `status` ON(requests.stat_id = status.stat_id)"); while ($row = mysql_fetch_array($r)) { echo '&lt;tr&gt;'; echo '&lt;td&gt;'.$row['proj_name'].'&lt;/td&gt;'; echo '&lt;td&gt;'.$row['mat_name'].'&lt;/td&gt;'; echo '&lt;td&gt;'.$row['req_qty'].'&lt;/td&gt;'; echo '&lt;td&gt;'.$row['stat_desc'].'&lt;/td&gt;'; echo '&lt;/tr&gt;'; } ?&gt; &lt;/tbody&gt; &lt;/table&gt; </code></pre> <p><strong>jS CODE:</strong></p> <pre><code>function myFunction(value){ if(value!="none") { $.ajax( { type: "POST", url: 'content/admin/requests.php', data: { proj_id: value}, success: function(data) { $('#project_estmat').html(data); } }); } else { $('#project_estmat').html("select an item"); } } </code></pre> <p>and I have this PHP code that should be in the #project_estmat which is a table. And I think this is where the problem lies. Because everytime I select an item, nothing is printing in the table. It shows empty data.</p> <pre><code>&lt;?php if (isset($_POST['proj_id'])) { $r = @mysql_query("SELECT `proj_name`, `mat_name`, `req_qty`, `stat_desc` FROM `requests` JOIN `projects` USING(`proj_id`) JOIN `materials` USING(`mat_id`) JOIN `status` ON(requests.stat_id = status.stat_id)"); if($r){ while ($row = mysql_fetch_array($r)) { echo '&lt;tr&gt;'; echo '&lt;td&gt;'.$row['proj_name'].'&lt;/td&gt;'; echo '&lt;td&gt;'.$row['mat_name'].'&lt;/td&gt;'; echo '&lt;td&gt;'.$row['req_qty'].'&lt;/td&gt;'; echo '&lt;td&gt;'.$row['stat_desc'].'&lt;/td&gt;'; echo '&lt;/tr&gt;'; } } exit; } ?&gt; </code></pre>
 

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