How to remove the same name occurrences in mysql left join? - php

Question

I am using the following query.
SELECT DISTINCT ph.module_head_id,
ph.module_head, pm.module_id,
pm.module_name, pm.module_url
FROM pms_module_header ph
LEFT JOIN pms_module pm
ON ph.module_head_id = pm.module_head_id
Now i am getting the following output
Module_head_id Module_head module_id module_name module_url
1 dashboard Null Null Null
2 Employee 1 Add test.php
2 Employee 2 View test1.php
3 Report 3 Project project.php
3 Report 4 Client client.php
How to remove the same name occurences in module_head
I Want to display the out like these in codeigniter view
dashboard
Employee Add
View
Report Project
Client
I am using array_unique function but its not work.Please help me

Answer 1

Here is the query,
SELECT DISTINCT ph.module_head_id,
ph.module_head, pm.module_id,
pm.module_name, pm.module_url
FROM pms_module_header ph
LEFT JOIN pms_module pm
ON ph.module_head_id = pm.module_head_id
group by ph.module_head_id
Just apply group by on module_head_id, it will work.
EDIT
<table border="1" width="100%">
<tr>
<th>Module head</th>
<th>Module name</th>
</tr>
<?php
$module_head = '';
foreach ($arr as $k => $v) {
echo "<tr>";
echo "<td>";
if ($v['module_head'] == '' || $v['module_head'] != $module_head) {
$module_head = $v['module_head'];
echo $v['module_head'] . "<br/>";
} else {
echo " ";
}
echo "<td>";
echo "<td>" . $v['module_name'] . "</td>";
echo "<tr>";
}
?>
<table>
Manipulate as per your view. It will work.