PHP/MySQL - Ordering a database table by year and month separately. - php

Question

I'm trying to build a HTML table from a list of newsletters in a MySQL database.
It's currently ordered by descending order, and outputting as below:
https://jsfiddle.net/e8zrLjqu/
As you will see the years are in the right place, but the months of the newsletters need to be in ascending order, while keeping the years in descending order, so that each newsletter matches up with the table heading....like this example:
Do I somehow need to use DATE_FORMAT to separate the ordering? The date in the database is formatted like this: 2014-07-01
Php:
$category_data_fields = '`id`';
$category_where_conditions = '`publish` = \'y\' and `fund_id` = ' . $this_fund_id . ' and `category_status` = \'n\'';
$category_result = $db->selectByStrings($category_data_fields, '`category`', $category_where_conditions, '`position`');
$resource_data_fields = '`id`, `date`, `heading`, `file`';
$heading_investor_newsletter = $lang_row['name'] . ' Investor Newsletters';
$copy_investor_newsletter = $tab0 . $lang_row['investor_news_copy'] . $retn . $retn;
$note = $tab1 . $lang_row['investor_news_note'] . $retn . $retn;
if ($db->getNumRows($category_result) > 0) {
$cat_data = $db->getNextRow($category_result);
/*
* list selectable years
*/
$resource_where_conditions = '`publish` = \'y\' and `category_id` = ' . $cat_data['id'];
$date_result = $db->selectByStrings($resource_data_fields, '`resource`', $resource_where_conditions, '`date` desc');
$current_year = '';
$base_url_query = (_USE_SEO_URLS === true) ? $_SERVER['PHP_SELF'] . '?' : $_SERVER['REQUEST_URI'] . '&';
if ($req->isRequest ('year')) $url_year = $req->getRequest ('year');
if ($db->getNumRows($date_result) > 0) {
$copy_investor_newsletter .= $tab0 . '<table class="table table-bordered table-responsive"><tbody><thead><tr><th>January</th><th>Feburay</th><th>March</th><th>April</th><th>May</th><th>June</th><th>July</th><th>August</th><th>September</th><th>October</th><th>November</th><th>December</th></tr></thead>' . $retn;
while ($data = $db->getNextRow($date_result)) {
if (substr ($data['date'], 0, 4) != $current_year) {
$current_year = substr ($data['date'], 0, 4);
if (!isset ($latest_year)) $latest_year = $current_year;
if (!isset ($url_year)) {
$navsel = ' class="ActNav"';
$url_year = $current_year;
} elseif ($url_year == $current_year) {
$navsel = ' class="ActNav"';
$selected_year = $url_year;
} else $navsel = '';
$copy_investor_newsletter .= $tab1 . '<tr>';
// if ($url_year == $current_year) {
/*
* read and display all newsletters for selected year
*/
$resource_where_conditions = '`publish` = \'y\' and `category_id` = ' . $cat_data['id'] . ' and substr(`date`,1,4) = \'' . $current_year . '\'';
$resource_result = $db->selectByStrings($resource_data_fields, '`resource`', $resource_where_conditions, '`date` desc');
if ($db->getNumRows($resource_result) > 0) {
// $copy_investor_newsletter .= $retn . $tab2 . '<ul>' . $retn;
while ($data = $db->getNextRow($resource_result)) {
$copy_investor_newsletter .= $tab3 . '<td>' . $data['heading'] . '</td>' . $retn;
}
// $copy_investor_newsletter .= $tab2 . '</ul>' . $retn . $tab1;
}
// }
$copy_investor_newsletter .= '</tr>' . $retn;
}
}
$copy_investor_newsletter .= $tab0 . '</tbody></table>' . $retn . $retn;
}
}
}

Answer 1

Try:
... ORDER BY YEAR(`date`) DESC, MONTH(`date`) ASC
See also the documentation of YEAR and MONTH