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What this is
This file is included in the DevDaily.com
"PHP Source Code
Warehouse" project. The intent of this project is to help you "Learn
PHP by Example" TM.
Other links
The source code
<?php
/* Note: these tags go anywhere in the template */
function bloginfo($show='') {
$info = get_bloginfo($show);
$info = apply_filters('bloginfo', $info);
echo convert_chars($info);
}
function bloginfo_rss($show='') {
$info = strip_tags(get_bloginfo($show));
echo convert_chars($info);
}
function bloginfo_unicode($show='') {
$info = get_bloginfo($show);
echo convert_chars($info);
}
function get_bloginfo($show='') {
$do_perma = 0;
$feed_url = get_settings('siteurl');
$comment_feed_url = get_settings('siteurl');
if ('' != get_settings('permalink_structure')) {
$do_perma = 1;
$feed_url = get_settings('home') . '/feed';
$comment_feed_url = get_settings('home') . '/comments/feed';
}
switch($show) {
case 'url':
case 'siteurl':
$output = get_settings('home');
break;
case 'description':
$output = get_settings('blogdescription');
break;
case 'rdf_url':
$output = get_settings('siteurl') .'/wp-rdf.php';
if ($do_perma) {
$output = $feed_url . '/rdf/';
}
break;
case 'rss_url':
$output = get_settings('siteurl') .'/wp-rss.php';
if ($do_perma) {
$output = $feed_url . '/rss/';
}
break;
case 'rss2_url':
$output = get_settings('siteurl') .'/wp-rss2.php';
if ($do_perma) {
$output = $feed_url . '/rss2/';
}
break;
case 'atom_url':
$output = get_settings('siteurl') .'/wp-atom.php';
if ($do_perma) {
$output = $feed_url . '/atom/';
}
break;
case 'comments_rss2_url':
$output = get_settings('siteurl') .'/wp-commentsrss2.php';
if ($do_perma) {
$output = $comment_feed_url . '/rss2/';
}
break;
case 'pingback_url':
$output = get_settings('siteurl') .'/xmlrpc.php';
break;
case 'admin_email':
$output = get_settings('admin_email');
break;
case 'charset':
$output = get_settings('blog_charset');
if ('' == $output) $output = 'UTF-8';
break;
case 'version':
global $wp_version;
$output = $wp_version;
break;
case 'name':
default:
$output = get_settings('blogname');
break;
}
return $output;
}
function wp_title($sep = '»', $display = true) {
global $wpdb, $tableposts, $tablecategories;
global $year, $monthnum, $day, $cat, $p, $name, $month, $posts, $single;
// If there's a category
if(!empty($cat)) {
if (!stristr($cat,'-')) { // category excluded
$title = stripslashes(get_the_category_by_ID($cat));
}
}
if (!empty($category_name)) {
$title = stripslashes($wpdb->get_var("SELECT cat_name FROM $tablecategories WHERE category_nicename = '$category_name'"));
}
// If there's a month
if(!empty($m)) {
$my_year = substr($m, 0, 4);
$my_month = $month[substr($m, 4, 2)];
$title = "$my_year $sep $my_month";
}
if (!empty($year)) {
$title = $year;
if (!empty($monthnum)) {
$title .= " $sep ".$month[zeroise($monthnum, 2)];
}
if (!empty($day)) {
$title .= " $sep ".zeroise($day, 2);
}
}
// If there's a post
if ($single) {
$title = strip_tags(stripslashes($posts[0]->post_title));
$title = apply_filters('single_post_title', $title);
}
// Send it out
if ($display && isset($title)) {
echo " $sep $title";
} elseif (!$display && isset($title)) {
return " $sep $title";
}
}
function single_post_title($prefix = '', $display = true) {
global $p, $name, $wpdb, $tableposts;
if (intval($p) || '' != $name) {
if (!$p) {
$p = $wpdb->get_var("SELECT ID FROM $tableposts WHERE post_name = '$name'");
}
$post_data = get_postdata($p);
$title = $post_data['Title'];
$title = apply_filters('single_post_title', $title);
if ($display) {
echo $prefix.strip_tags(stripslashes($title));
} else {
return strip_tags(stripslashes($title));
}
}
}
function single_cat_title($prefix = '', $display = true ) {
global $cat;
if(!empty($cat) && !(strtoupper($cat) == 'ALL')) {
$my_cat_name = get_the_category_by_ID($cat);
if(!empty($my_cat_name)) {
if ($display)
echo $prefix.strip_tags(stripslashes($my_cat_name));
else
return strip_tags(stripslashes($my_cat_name));
}
}
}
function single_month_title($prefix = '', $display = true ) {
global $m, $month;
if(!empty($m)) {
$my_year = substr($m,0,4);
$my_month = $month[substr($m,4,2)];
if ($display)
echo $prefix.$my_month.$prefix.$my_year;
else
return $m;
}
}
/* link navigation hack by Orien http://icecode.com/ */
function get_archives_link($url, $text, $format = "html", $before = "", $after = "") {
if ('link' == $format) {
return "\t".'<link rel="archives" title="'.$text.'" href="'.$url.'" />'."\n";
} else if ('option' == $format) {
return '<option value="'.$url.'">'.$text.'</option>'."\n";
} else if ('html' == $format) {
return "\t".'<li><a href="'.$url.'" title="'.$text.'">'.$text.'</a>'.$after.'</li>'."\n";
} else { // custom
return "\t".$before.'<a href="'.$url.'" title="'.$text.'">'.$text.'</a>'.$after."\n";
}
}
function wp_get_archives($args = '') {
parse_str($args, $r);
if (!isset($r['type'])) $r['type'] = '';
if (!isset($r['limit'])) $r['limit'] = '';
if (!isset($r['format'])) $r['format'] = 'html';
if (!isset($r['before'])) $r['before'] = '';
if (!isset($r['after'])) $r['after'] = '';
if (!isset($r['show_post_count'])) $r['show_post_count'] = false;
get_archives($r['type'], $r['limit'], $r['format'], $r['before'], $r['after'], $r['show_post_count']);
}
function get_archives($type='', $limit='', $format='html', $before = '', $after = '', $show_post_count = false) {
global $tableposts;
global $querystring_start, $querystring_equal, $querystring_separator, $month, $wpdb;
if ('' == $type) {
$type = get_settings('archive_mode');
}
if ('' != $limit) {
$limit = (int) $limit;
$limit = ' LIMIT '.$limit;
}
// this is what will separate dates on weekly archive links
$archive_week_separator = '–';
// archive link url
$archive_link_m = get_settings('siteurl').'/'.get_settings('blogfilename').$querystring_start.'m'.$querystring_equal; # monthly archive;
$archive_link_w = get_settings('siteurl').'/'.get_settings('blogfilename').$querystring_start.'w'.$querystring_equal; # weekly archive;
$archive_link_p = get_settings('siteurl').'/'.get_settings('blogfilename').$querystring_start.'p'.$querystring_equal; # post-by-post archive;
// over-ride general date format ? 0 = no: use the date format set in Options, 1 = yes: over-ride
$archive_date_format_over_ride = 0;
// options for daily archive (only if you over-ride the general date format)
$archive_day_date_format = 'Y/m/d';
// options for weekly archive (only if you over-ride the general date format)
$archive_week_start_date_format = 'Y/m/d';
$archive_week_end_date_format = 'Y/m/d';
if (!$archive_date_format_over_ride) {
$archive_day_date_format = get_settings('date_format');
$archive_week_start_date_format = get_settings('date_format');
$archive_week_end_date_format = get_settings('date_format');
}
$add_hours = intval(get_settings('gmt_offset'));
$add_minutes = intval(60 * (get_settings('gmt_offset') - $add_hours));
$now = current_time('mysql');
if ('monthly' == $type) {
$arcresults = $wpdb->get_results("SELECT DISTINCT YEAR(post_date) AS `year`, MONTH(post_date) AS `month`, count(ID) as posts FROM $tableposts WHERE post_date < '$now' AND post_status = 'publish' GROUP BY YEAR(post_date), MONTH(post_date) ORDER BY post_date DESC" . $limit);
if ($arcresults) {
$afterafter = $after;
foreach ($arcresults as $arcresult) {
$url = get_month_link($arcresult->year, $arcresult->month);
if ($show_post_count) {
$text = sprintf('%s %d', $month[zeroise($arcresult->month,2)], $arcresult->year);
$after = ' ('.$arcresult->posts.')' . $afterafter;
} else {
$text = sprintf('%s %d', $month[zeroise($arcresult->month,2)], $arcresult->year);
}
echo get_archives_link($url, $text, $format, $before, $after);
}
}
} elseif ('daily' == $type) {
$arcresults = $wpdb->get_results("SELECT DISTINCT YEAR(post_date) AS `year`, MONTH(post_date) AS `month`, DAYOFMONTH(post_date) AS `dayofmonth` FROM $tableposts WHERE post_date < '$now' AND post_status = 'publish' ORDER BY post_date DESC" . $limit);
if ($arcresults) {
foreach ($arcresults as $arcresult) {
$url = get_day_link($arcresult->year, $arcresult->month, $arcresult->dayofmonth);
$date = sprintf("%d-%02d-%02d 00:00:00", $arcresult->year, $arcresult->month, $arcresult->dayofmonth);
$text = mysql2date($archive_day_date_format, $date);
echo get_archives_link($url, $text, $format, $before, $after);
}
}
} elseif ('weekly' == $type) {
$start_of_week = get_settings('start_of_week');
$arcresults = $wpdb->get_results("SELECT DISTINCT WEEK(post_date, $start_of_week) AS `week`, YEAR(post_date) AS yr, DATE_FORMAT(post_date, '%Y-%m-%d') AS yyyymmdd FROM $tableposts WHERE post_date < '$now' AND post_status = 'publish' ORDER BY post_date DESC" . $limit);
$arc_w_last = '';
if ($arcresults) {
foreach ($arcresults as $arcresult) {
if ($arcresult->week != $arc_w_last) {
$arc_year = $arcresult->yr;
$arc_w_last = $arcresult->week;
$arc_week = get_weekstartend($arcresult->yyyymmdd, get_settings('start_of_week'));
$arc_week_start = date_i18n($archive_week_start_date_format, $arc_week['start']);
$arc_week_end = date_i18n($archive_week_end_date_format, $arc_week['end']);
$url = sprintf('%s/%s%sm%s%s%sw%s%d', get_settings('home'), get_settings('blogfilename'), $querystring_start,
$querystring_equal, $arc_year, $querystring_separator,
$querystring_equal, $arcresult->week);
$text = $arc_week_start . $archive_week_separator . $arc_week_end;
echo get_archives_link($url, $text, $format, $before, $after);
}
}
}
} elseif ('postbypost' == $type) {
$arcresults = $wpdb->get_results("SELECT ID, post_date, post_title FROM $tableposts WHERE post_date < '$now' AND post_status = 'publish' ORDER BY post_date DESC" . $limit);
if ($arcresults) {
foreach ($arcresults as $arcresult) {
if ($arcresult->post_date != '0000-00-00 00:00:00') {
$url = get_permalink($arcresult->ID);
$arc_title = stripslashes($arcresult->post_title);
if ($arc_title) {
$text = strip_tags($arc_title);
} else {
$text = $arcresult->ID;
}
echo get_archives_link($url, $text, $format, $before, $after);
}
}
}
}
}
function get_calendar($daylength = 1) {
global $wpdb, $m, $monthnum, $year, $timedifference, $month, $month_abbrev, $weekday, $weekday_initial, $weekday_abbrev, $tableposts, $posts;
// Quick check. If we have no posts at all, abort!
if (!$posts) {
$gotsome = $wpdb->get_var("SELECT ID from $tableposts WHERE post_status = 'publish' ORDER BY post_date DESC LIMIT 1");
if (!$gotsome)
return;
}
if (isset($_GET['w'])) {
$w = ''.intval($_GET['w']);
}
$add_hours = intval(get_settings('gmt_offset'));
$add_minutes = intval(60 * (get_settings('gmt_offset') - $add_hours));
// Let's figure out when we are
if (!empty($monthnum) && !empty($year)) {
$thismonth = ''.zeroise(intval($monthnum), 2);
$thisyear = ''.intval($year);
} elseif (!empty($w)) {
// We need to get the month from MySQL
$thisyear = ''.intval(substr($m, 0, 4));
$d = (($w - 1) * 7) + 6; //it seems MySQL's weeks disagree with PHP's
$thismonth = $wpdb->get_var("SELECT DATE_FORMAT((DATE_ADD('${thisyear}0101', INTERVAL $d DAY) ), '%m')");
} elseif (!empty($m)) {
$calendar = substr($m, 0, 6);
$thisyear = ''.intval(substr($m, 0, 4));
if (strlen($m) < 6) {
$thismonth = '01';
} else {
$thismonth = ''.zeroise(intval(substr($m, 4, 2)), 2);
}
} else {
$thisyear = gmdate('Y', current_time('timestamp') + get_settings('gmt_offset') * 3600);
$thismonth = gmdate('m', current_time('timestamp') + get_settings('gmt_offset') * 3600);
}
$unixmonth = mktime(0, 0 , 0, $thismonth, 1, $thisyear);
// Get the next and previous month and year with at least one post
$previous = $wpdb->get_row("SELECT DISTINCT MONTH(post_date) AS month, YEAR(post_date) AS year
FROM $tableposts
WHERE post_date < '$thisyear-$thismonth-01'
AND post_status = 'publish'
ORDER BY post_date DESC
LIMIT 1");
$next = $wpdb->get_row("SELECT DISTINCT MONTH(post_date) AS month, YEAR(post_date) AS year
FROM $tableposts
WHERE post_date > '$thisyear-$thismonth-01'
AND MONTH( post_date ) != MONTH( '$thisyear-$thismonth-01' )
AND post_status = 'publish'
ORDER BY post_date ASC
LIMIT 1");
echo '<table id="wp-calendar">
<caption>' . $month[zeroise($thismonth, 2)] . ' ' . date('Y', $unixmonth) . '</caption>
<thead>
<tr>';
$day_abbrev = $weekday_initial;
if ($daylength > 1) {
$day_abbrev = $weekday_abbrev;
}
foreach ($weekday as $wd) {
echo "\n\t\t<th abbr=\"$wd\" scope=\"col\" title=\"$wd\">" . $day_abbrev[$wd] . '</th>';
}
echo '
</tr>
</thead>
<tfoot>
<tr>';
if ($previous) {
echo "\n\t\t".'<td abbr="' . $month[zeroise($previous->month, 2)] . '" colspan="3" id="prev"><a href="' .
get_month_link($previous->year, $previous->month) . '" title="' . sprintf(__('View posts for %1$s %2$s'), $month[zeroise($previous->month, 2)], date('Y', mktime(0, 0 , 0, $previous->month, 1, $previous->year))) . '">« ' . $month_abbrev[$month[zeroise($previous->month, 2)]] . '</a></td>';
} else {
echo "\n\t\t".'<td colspan="3" id="prev" class="pad"> </td>';
}
echo "\n\t\t".'<td class="pad"> </td>';
if ($next) {
echo "\n\t\t".'<td abbr="' . $month[zeroise($next->month, 2)] . '" colspan="3" id="next"><a href="' .
get_month_link($next->year, $next->month) . '" title="View posts for ' . $month[zeroise($next->month, 2)] . ' ' .
date('Y', mktime(0, 0 , 0, $next->month, 1, $next->year)) . '">' . substr($month[zeroise($next->month, 2)], 0, 3) . ' »</a></td>';
} else {
echo "\n\t\t".'<td colspan="3" id="next" class="pad"> </td>';
}
echo '
</tr>
</tfoot>
<tbody>
<tr>';
// Get days with posts
$dayswithposts = $wpdb->get_results("SELECT DISTINCT DAYOFMONTH(post_date)
FROM $tableposts WHERE MONTH(post_date) = $thismonth
AND YEAR(post_date) = $thisyear
AND post_status = 'publish'
AND post_date < '" . current_time('mysql') . '\'', ARRAY_N);
if ($dayswithposts) {
foreach ($dayswithposts as $daywith) {
$daywithpost[] = $daywith[0];
}
} else {
$daywithpost = array();
}
if (strstr($_SERVER['HTTP_USER_AGENT'], 'MSIE') ||
strstr(strtolower($_SERVER['HTTP_USER_AGENT']), 'camino') ||
strstr(strtolower($_SERVER['HTTP_USER_AGENT']), 'safari')) {
$ak_title_separator = "\n";
} else {
$ak_title_separator = ', ';
}
$ak_titles_for_day = array();
$ak_post_titles = $wpdb->get_results("SELECT post_title, DAYOFMONTH(post_date) as dom "
."FROM $tableposts "
."WHERE YEAR(post_date) = '$thisyear' "
."AND MONTH(post_date) = '$thismonth' "
."AND post_date < '".current_time('mysql')."' "
."AND post_status = 'publish'"
);
if ($ak_post_titles) {
foreach ($ak_post_titles as $ak_post_title) {
if (empty($ak_titles_for_day['day_'.$ak_post_title->dom])) {
$ak_titles_for_day['day_'.$ak_post_title->dom] = '';
}
if (empty($ak_titles_for_day["$ak_post_title->dom"])) { // first one
$ak_titles_for_day["$ak_post_title->dom"] = htmlspecialchars(stripslashes($ak_post_title->post_title));
} else {
$ak_titles_for_day["$ak_post_title->dom"] .= $ak_title_separator . htmlspecialchars(stripslashes($ak_post_title->post_title));
}
}
}
// See how much we should pad in the beginning
$pad = intval(date('w', $unixmonth));
if (0 != $pad) echo "\n\t\t".'<td colspan="'.$pad.'" class="pad"> </td>';
$daysinmonth = intval(date('t', $unixmonth));
for ($day = 1; $day <= $daysinmonth; ++$day) {
if (isset($newrow) && $newrow)
echo "\n\t</tr>\n\t<tr>\n\t\t";
$newrow = false;
if ($day == gmdate('j', (time() + (get_settings('gmt_offset') * 3600))) && $thismonth == gmdate('m', time()+(get_settings('gmt_offset') * 3600)))
echo '<td id="today">';
else
echo '<td>';
if (in_array($day, $daywithpost)) { // any posts today?
echo '<a href="' . get_day_link($thisyear, $thismonth, $day) . "\" title=\"$ak_titles_for_day[$day]\">$day</a>";
} else {
echo $day;
}
echo '</td>';
if (6 == date('w', mktime(0, 0 , 0, $thismonth, $day, $thisyear)))
$newrow = true;
}
$pad = 7 - date('w', mktime(0, 0 , 0, $thismonth, $day, $thisyear));
if ($pad != 0 && $pad != 7)
echo "\n\t\t".'<td class="pad" colspan="'.$pad.'"> </td>';
echo "\n\t</tr>\n\t</tbody>\n\t</table>";
}
function allowed_tags() {
global $allowedtags;
$allowed = '';
foreach($allowedtags as $tag => $attributes) {
$allowed .= '<'.$tag;
if (0 < count($attributes)) {
foreach ($attributes as $attribute => $limits) {
$allowed .= ' '.$attribute.'=""';
}
}
$allowed .= '> ';
}
return htmlentities($allowed);
}
/***** Date/Time tags *****/
function the_date_xml() {
global $post;
echo mysql2date('Y-m-d', $post->post_date);
//echo ""+$post->post_date;
}
function the_date($d='', $before='', $after='', $echo = true) {
global $id, $post, $day, $previousday, $newday;
$the_date = '';
if ($day != $previousday) {
$the_date .= $before;
if ($d=='') {
$the_date .= mysql2date(get_settings('date_format'), $post->post_date);
} else {
$the_date .= mysql2date($d, $post->post_date);
}
$the_date .= $after;
$previousday = $day;
}
$the_date = apply_filters('the_date', $the_date);
if ($echo) {
echo $the_date;
} else {
return $the_date;
}
}
function the_time($d='', $echo = true) {
global $id, $post;
if ($d=='') {
$the_time = mysql2date(get_settings('time_format'), $post->post_date);
} else {
$the_time = mysql2date($d, $post->post_date);
}
$the_time = apply_filters('the_time', $the_time);
if ($echo) {
echo $the_time;
} else {
return $the_time;
}
}
function the_weekday() {
global $weekday, $id, $post;
$the_weekday = $weekday[mysql2date('w', $post->post_date)];
$the_weekday = apply_filters('the_weekday', $the_weekday);
echo $the_weekday;
}
function the_weekday_date($before='',$after='') {
global $weekday, $id, $post, $day, $previousweekday;
$the_weekday_date = '';
if ($day != $previousweekday) {
$the_weekday_date .= $before;
$the_weekday_date .= $weekday[mysql2date('w', $post->post_date)];
$the_weekday_date .= $after;
$previousweekday = $day;
}
$the_weekday_date = apply_filters('the_weekday_date', $the_weekday_date);
echo $the_weekday_date;
}
?>
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