function date_i18n($dateformatstring, $unixtimestamp, $charset = "")
{
if (!empty($GLOBALS['month']) && !empty($GLOBALS['weekday'])) {
$datemonth = $GLOBALS['month'][date('m', $unixtimestamp)];
$dateweekday = $GLOBALS['weekday'][date('w', $unixtimestamp)];
$dateformatstring = ' ' . $dateformatstring;
$dateformatstring = preg_replace("/([^\\\\])D/", "\\1" . backslashit(mb_substring($dateweekday, 0, $GLOBALS['s_weekday_length'], $charset)), $dateformatstring);
$dateformatstring = preg_replace("/([^\\\\])F/", "\\1" . backslashit($datemonth), $dateformatstring);
$dateformatstring = preg_replace("/([^\\\\])l/", "\\1" . backslashit($dateweekday), $dateformatstring);
$dateformatstring = preg_replace("/([^\\\\])M/", "\\1" . backslashit(mb_substring($datemonth, 0, $GLOBALS['s_month_length'], $charset)), $dateformatstring);
$dateformatstring = substr($dateformatstring, 1, strlen($dateformatstring) - 1);
}
$j = @date($dateformatstring, $unixtimestamp);
return $j;
}
function archive_header(&$post, $before = '', $after = '')
{
static $previous = '';
if (test_param('orderby')) {
$orderby = explode(' ', get_param('orderby'));
$orderby = $orderby[0];
} else {
$orderby = '';
}
switch ($orderby) {
case 'title':
if (_LANGCODE == 'ja') {
$thisletter = ucfirst(mb_substring($post->yomi, 0, 1, $GLOBALS['blog_charset']));
if ($thisletter > "¤ó") {
$thisletter = "´Á»ú";
}
} else {
$thisletter = ucfirst(substr($post->yomi, 0, 1));
}
if ($thisletter == "") {
$thisletter = _WP_POST_NOTITLE;
}
if ($previous === '' || $thisletter !== $previous) {
$output = "<br/>" . $thisletter;
}
$previous = $thisletter;
break;
case 'category':
$thiscategory = $post->cat_ID;
if ($thiscategory != $previous) {
$output = '<br/><strong><a href="' . get_category_link(false, $thiscategory) . '">' . get_catname($thiscategory) . '</a></strong>';
}
$previous = $thiscategory;
break;
case 'author':
$thisauthor = $post->post_author;
if ($thisauthor != $previous) {
$output = '<br/><strong><a href="' . get_author_link(false, $thisauthor) . '">' . the_author('', false) . '</a></strong>';
}
$previous = $thisauthor;
break;
case 'date':
case '':
$thismonth = mysql2date('m', $post->post_date);
$thisyear = mysql2date('Y', $post->post_date);
$thisdate = $thisyear . $thismonth;
if ($thisdate != $previous) {
$monthstr = format_month(sprintf("%d", $thisyear), $GLOBALS['month'][zeroise($thismonth, 2)]);
$output = '<strong><br/><a href="' . get_month_link($thisyear, $thismonth) . '">' . $monthstr . '</a></strong>';
}
$previous = $thisdate;
break;
}
if (!empty($output)) {
$output = $before . $output . $after . "\n";
echo $output;
}
}
