<tbody>
<tr>
<th class="<?php
echo table_sort($filter, 'email');
?>
">email</th>
<th class="<?php
echo table_sort($filter, 'first_name');
?>
">first</th>
<th class="<?php
echo table_sort($filter, 'last_name');
?>
">last</th>
<th class="<?php
echo table_sort($filter, 'phone');
?>
">phone</th>
</tr>
<?php
foreach ($user_list as $user) {
?>
<tr>
<td><a href="<?php
echo base_url() . 'index.php/user/read/' . $user['id'];
?>
"><?php
echo $user['email'];
?>
</a></td>
<td><?php
function table_sort_second_time(&$matrix, $column_sorted, $column_to_sort){
$sorted=array();
$new_matrix=array();
foreach($matrix as $row_id=>$row){
$sorted[$row[$column_sorted]][$row_id]=$row;
}
foreach($sorted as $sorted_key=>$submatrix){
table_sort($submatrix, $column_to_sort, 'asc');
$new_matrix+=$submatrix;
}
$matrix=$new_matrix;
}
<table class="sortable">
<tbody>
<tr>
<th class="<?php
echo table_sort($filter, 'name');
?>
">event name</th>
<th class="<?php
echo table_sort($filter, 'date_start');
?>
">start</th>
<th class="<?php
echo table_sort($filter, 'date_end');
?>
">end</th>
<th class="not-sortable"><?php
echo $search_field_label;
?>
</th>
</tr>
<?php
foreach ($event_list as $event) {
?>
<tr>
<td><a href="<?php
echo site_url();
?>
/event/read/<?php
echo $event['id'];
?>
"><?php
<tbody>
<tr>
<th class="<?php
echo table_sort($filter, 'name');
?>
">product name</th>
<th class="<?php
echo table_sort($filter, 'price');
?>
">price</th>
<th class="<?php
echo table_sort($filter, 'model');
?>
">model</th>
<th class="<?php
echo table_sort($filter, 'type');
?>
">type</th>
</tr>
<?php
foreach ($product_list as $p) {
?>
<tr>
<td><a href="<?php
echo site_url();
?>
/product/read/<?php
echo $p['id'];
?>
"><?php
echo $p['name'];