WordPress/wp-includes/template-functions-links.php

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<?php
function the_permalink() {
echo apply_filters('the_permalink', get_permalink());
}
function permalink_link() { // For backwards compatibility
echo apply_filters('the_permalink', get_permalink());
}
function permalink_anchor($mode = 'id') {
global $id, $post;
switch(strtolower($mode)) {
case 'title':
$title = sanitize_title($post->post_title) . '-' . $id;
echo '<a id="'.$title.'"></a>';
break;
case 'id':
default:
echo '<a id="post-'.$id.'"></a>';
break;
}
}
function get_permalink($id = false) {
global $post, $wpdb;
$rewritecode = array(
'%year%',
'%monthnum%',
'%day%',
'%hour%',
'%minute%',
'%second%',
'%postname%',
'%post_id%',
'%category%',
'%author%',
'%pagename%'
);
if ($id) {
$idpost = $wpdb->get_row("SELECT ID, post_date, post_name, post_status, post_author FROM $wpdb->posts WHERE ID = $id");
} else {
$idpost = $post;
}
if ($idpost->post_status == 'static') {
return get_page_link($idpost->ID);
}
$permalink = get_settings('permalink_structure');
if ('' != $permalink) {
$unixtime = strtotime($idpost->post_date);
$cats = get_the_category($idpost->ID);
$category = $cats[0]->category_nicename;
if ($parent=$cats[0]->category_parent) $category = get_category_parents($parent, FALSE, '/', TRUE) . $category;
$authordata = get_userdata($idpost->post_author);
$author = $authordata->user_nicename;
$rewritereplace =
array(
date('Y', $unixtime),
date('m', $unixtime),
date('d', $unixtime),
date('H', $unixtime),
date('i', $unixtime),
date('s', $unixtime),
$idpost->post_name,
$idpost->ID,
$category,
$author,
$idpost->post_name,
);
return get_settings('home') . str_replace($rewritecode, $rewritereplace, $permalink);
} else { // if they're not using the fancy permalink option
$permalink = get_settings('home') . '/?p=' . $idpost->ID;
return $permalink;
}
}
function get_page_link($id = false) {
global $post, $wp_rewrite;
if (! $id) {
$id = $post->ID;
}
$permalink = get_settings('permalink_structure');
if ('' != $permalink) {
$link = get_page_uri($id);
if ($wp_rewrite->using_index_permalinks()) {
$link = 'index.php/' . $link;
}
$link = get_settings('home') . "/$link/";
} else {
$link = get_settings('home') . "/index.php?page_id=$id";
}
return $link;
}
function get_year_link($year) {
global $querystring_start, $querystring_equal, $wp_rewrite;
if (!$year) $year = gmdate('Y', time()+(get_settings('gmt_offset') * 3600));
$yearlink = $wp_rewrite->get_year_permastruct();
if (!empty($yearlink)) {
$yearlink = str_replace('%year%', $year, $yearlink);
return get_settings('home') . trailingslashit($yearlink);
} else {
return get_settings('home') .'/'. $querystring_start.'m'.$querystring_equal.$year;
}
}
function get_month_link($year, $month) {
global $querystring_start, $querystring_equal, $wp_rewrite;
if (!$year) $year = gmdate('Y', time()+(get_settings('gmt_offset') * 3600));
if (!$month) $month = gmdate('m', time()+(get_settings('gmt_offset') * 3600));
$monthlink = $wp_rewrite->get_month_permastruct();
if (!empty($monthlink)) {
$monthlink = str_replace('%year%', $year, $monthlink);
$monthlink = str_replace('%monthnum%', zeroise(intval($month), 2), $monthlink);
return get_settings('home') . trailingslashit($monthlink);
} else {
return get_settings('home') .'/'. $querystring_start.'m'.$querystring_equal.$year.zeroise($month, 2);
}
}
function get_day_link($year, $month, $day) {
global $querystring_start, $querystring_equal, $wp_rewrite;
if (!$year) $year = gmdate('Y', time()+(get_settings('gmt_offset') * 3600));
if (!$month) $month = gmdate('m', time()+(get_settings('gmt_offset') * 3600));
if (!$day) $day = gmdate('j', time()+(get_settings('gmt_offset') * 3600));
$daylink = $wp_rewrite->get_day_permastruct();
if (!empty($daylink)) {
$daylink = str_replace('%year%', $year, $daylink);
$daylink = str_replace('%monthnum%', zeroise(intval($month), 2), $daylink);
$daylink = str_replace('%day%', zeroise(intval($day), 2), $daylink);
return get_settings('home') . trailingslashit($daylink);
} else {
return get_settings('home') .'/'. $querystring_start.'m'.$querystring_equal.$year.zeroise($month, 2).zeroise($day, 2);
}
}
function get_feed_link($feed='rss2') {
global $wp_rewrite;
$do_perma = 0;
$feed_url = get_settings('siteurl');
$comment_feed_url = $feed_url;
$permalink = get_settings('permalink_structure');
if ('' != $permalink) {
$do_perma = 1;
$feed_url = get_settings('home');
$index = 'index.php';
$prefix = '';
if ($wp_rewrite->using_index_permalinks()) {
$feed_url .= '/' . $index;
}
$comment_feed_url = $feed_url;
$feed_url .= '/feed';
$comment_feed_url .= '/comments/feed';
}
switch($feed) {
case 'rdf':
$output = $feed_url .'/wp-rdf.php';
if ($do_perma) {
$output = $feed_url . '/rdf/';
}
break;
case 'rss':
$output = $feed_url . '/wp-rss.php';
if ($do_perma) {
$output = $feed_url . '/rss/';
}
break;
case 'atom':
$output = $feed_url .'/wp-atom.php';
if ($do_perma) {
$output = $feed_url . '/atom/';
}
break;
case 'comments_rss2':
$output = $feed_url .'/wp-commentsrss2.php';
if ($do_perma) {
$output = $comment_feed_url . '/';
}
break;
case 'rss2':
default:
$output = $feed_url .'/wp-rss2.php';
if ($do_perma) {
$output = $feed_url . '/';
}
break;
}
return $output;
}
function edit_post_link($link = 'Edit This', $before = '', $after = '') {
global $user_level, $post;
get_currentuserinfo();
if ($user_level > 0) {
$authordata = get_userdata($post->post_author);
if ($user_level < $authordata->user_level) {
return;
}
} else {
return;
}
$location = get_settings('siteurl') . "/wp-admin/post.php?action=edit&amp;post=$post->ID";
echo "$before <a href=\"$location\">$link</a> $after";
}
function edit_comment_link($link = 'Edit This', $before = '', $after = '') {
global $user_level, $post, $comment;
get_currentuserinfo();
if ($user_level > 0) {
$authordata = get_userdata($post->post_author);
if ($user_level < $authordata->user_level) {
return;
}
} else {
return;
}
$location = get_settings('siteurl') . "/wp-admin/post.php?action=editcomment&amp;comment=$comment->comment_ID";
echo "$before <a href='$location'>$link</a> $after";
}
// Navigation links
function get_previous_post($in_same_cat = false, $excluded_categories = '') {
global $post, $wpdb;
if(! is_single()) {
return null;
}
$current_post_date = $post->post_date;
$current_category = $post->post_category;
$sqlcat = '';
if ($in_same_cat) {
$sqlcat = " AND post_category = '$current_category' ";
}
$sql_exclude_cats = '';
if (!empty($excluded_categories)) {
$blah = explode('and', $excluded_categories);
foreach($blah as $category) {
$category = intval($category);
$sql_exclude_cats .= " AND post_category != $category";
}
}
return @$wpdb->get_row("SELECT ID, post_title FROM $wpdb->posts WHERE post_date < '$current_post_date' AND post_status = 'publish' $sqlcat $sql_exclude_cats ORDER BY post_date DESC LIMIT 1");
}
function get_next_post($in_same_cat = false, $excluded_categories = '') {
global $post, $wpdb;
if(! is_single()) {
return null;
}
$current_post_date = $post->post_date;
$current_category = $post->post_category;
$sqlcat = '';
if ($in_same_cat) {
$sqlcat = " AND post_category = '$current_category' ";
}
$sql_exclude_cats = '';
if (!empty($excluded_categories)) {
$blah = explode('and', $excluded_categories);
foreach($blah as $category) {
$category = intval($category);
$sql_exclude_cats .= " AND post_category != $category";
}
}
$now = current_time('mysql');
return @$wpdb->get_row("SELECT ID,post_title FROM $wpdb->posts WHERE post_date > '$current_post_date' AND post_date < '$now' AND post_status = 'publish' $sqlcat $sql_exclude_cats AND ID != $post->ID ORDER BY post_date ASC LIMIT 1");
}
function previous_post_link($format='&laquo; %link', $link='%title', $in_same_cat = false, $excluded_categories = '') {
$post = get_previous_post($in_same_cat, $excluded_categories);
if(! $post) {
return;
}
$title = apply_filters('the_title', $post->post_title);
$string = '<a href="'.get_permalink($post->ID).'">';
$link = str_replace('%title', $title, $link);
$link = $string . $link . '</a>';
$format = str_replace('%link', $link, $format);
echo $format;
}
function next_post_link($format='%link &raquo;', $link='%title', $in_same_cat = false, $excluded_categories = '') {
$post = get_next_post($in_same_cat, $excluded_categories);
if(! $post) {
return;
}
$title = apply_filters('the_title', $post->post_title);
$string = '<a href="'.get_permalink($post->ID).'">';
$link = str_replace('%title', $title, $link);
$link = $string . $link . '</a>';
$format = str_replace('%link', $link, $format);
echo $format;
}
function previous_post($format='%', $previous='previous post: ', $title='yes', $in_same_cat='no', $limitprev=1, $excluded_categories='') {
global $id, $post, $wpdb;
global $posts, $posts_per_page, $s;
global $querystring_start, $querystring_equal, $querystring_separator;
if(($posts_per_page == 1) || is_single()) {
$current_post_date = $post->post_date;
$current_category = $post->post_category;
$sqlcat = '';
if ($in_same_cat != 'no') {
$sqlcat = " AND post_category = '$current_category' ";
}
$sql_exclude_cats = '';
if (!empty($excluded_categories)) {
$blah = explode('and', $excluded_categories);
foreach($blah as $category) {
$category = intval($category);
$sql_exclude_cats .= " AND post_category != $category";
}
}
$limitprev--;
$lastpost = @$wpdb->get_row("SELECT ID, post_title FROM $wpdb->posts WHERE post_date < '$current_post_date' AND post_status = 'publish' $sqlcat $sql_exclude_cats ORDER BY post_date DESC LIMIT $limitprev, 1");
if ($lastpost) {
$string = '<a href="'.get_permalink($lastpost->ID).'">'.$previous;
if ($title == 'yes') {
$string .= wptexturize($lastpost->post_title);
}
$string .= '</a>';
$format = str_replace('%', $string, $format);
echo $format;
}
}
}
function next_post($format='%', $next='next post: ', $title='yes', $in_same_cat='no', $limitnext=1, $excluded_categories='') {
global $posts_per_page, $post, $wpdb;
if(1 == $posts_per_page || is_single()) {
$current_post_date = $post->post_date;
$current_category = $post->post_category;
$sqlcat = '';
if ($in_same_cat != 'no') {
$sqlcat = " AND post_category='$current_category' ";
}
$sql_exclude_cats = '';
if (!empty($excluded_categories)) {
$blah = explode('and', $excluded_categories);
foreach($blah as $category) {
$category = intval($category);
$sql_exclude_cats .= " AND post_category != $category";
}
}
$now = current_time('mysql');
$limitnext--;
$nextpost = @$wpdb->get_row("SELECT ID,post_title FROM $wpdb->posts WHERE post_date > '$current_post_date' AND post_date < '$now' AND post_status = 'publish' $sqlcat $sql_exclude_cats AND ID != $post->ID ORDER BY post_date ASC LIMIT $limitnext,1");
if ($nextpost) {
$string = '<a href="'.get_permalink($nextpost->ID).'">'.$next;
if ($title=='yes') {
$string .= wptexturize($nextpost->post_title);
}
$string .= '</a>';
$format = str_replace('%', $string, $format);
echo $format;
}
}
}
function get_pagenum_link($pagenum = 1){
global $wp_rewrite;
$qstr = $_SERVER['REQUEST_URI'];
$page_querystring = "paged";
$page_modstring = "page/";
$page_modregex = "page/?";
$permalink = 0;
$index = 'index.php';
$home_root = parse_url(get_settings('home'));
$home_root = $home_root['path'];
$home_root = trailingslashit($home_root);
$qstr = preg_replace('|^'. $home_root . '|', '', $qstr);
$qstr = preg_replace('|^/+|', '', $qstr);
// if we already have a QUERY style page string
if( stristr( $qstr, $page_querystring ) ) {
$replacement = "$page_querystring=$pagenum";
$qstr = preg_replace("/".$page_querystring."[^\d]+\d+/", $replacement, $qstr);
// if we already have a mod_rewrite style page string
} elseif ( preg_match( '|'.$page_modregex.'\d+|', $qstr ) ){
$permalink = 1;
$qstr = preg_replace('|'.$page_modregex.'\d+|',"$page_modstring$pagenum",$qstr);
// if we don't have a page string at all ...
// lets see what sort of URL we have...
} else {
// we need to know the way queries are being written
global $querystring_start, $querystring_equal, $querystring_separator;
// if there's a querystring_start (a "?" usually), it's deffinitely not mod_rewritten
if ( stristr( $qstr, $querystring_start ) ){
// so append the query string (using &, since we already have ?)
$qstr .= $querystring_separator.$page_querystring.$querystring_equal.$pagenum;
// otherwise, it could be rewritten, OR just the default index ...
} elseif( '' != get_settings('permalink_structure')) {
$permalink = 1;
// If it's not a path info permalink structure, trim the index.
if (! $wp_rewrite->using_index_permalinks()) {
$qstr = preg_replace("#/*" . $index . "/*#", '/', $qstr);
} else {
// If using path info style permalinks, make sure the index is in
// the URI.
if (strpos($qstr, $index) === false) {
$qstr = '/' . $index . $qstr;
}
}
$qstr = trailingslashit($qstr) . $page_modstring . $pagenum;
} else {
$qstr = $index . $querystring_start.$page_querystring.$querystring_equal.$pagenum;
}
}
$qstr = preg_replace('|^/+|', '', $qstr);
if ($permalink) $qstr = trailingslashit($qstr);
return preg_replace('/&([^#])(?![a-z]{1,8};)/', '&#038;$1', trailingslashit( get_settings('home') ) . $qstr );
}
function next_posts($max_page = 0) { // original by cfactor at cooltux.org
global $paged, $pagenow;
global $querystring_start, $querystring_equal, $querystring_separator;
if (! is_single()) {
if (!$paged) $paged = 1;
$nextpage = intval($paged) + 1;
if (!$max_page || $max_page >= $nextpage) {
echo get_pagenum_link($nextpage);
}
}
}
function next_posts_link($label='Next Page &raquo;', $max_page=0) {
global $paged, $result, $request, $posts_per_page, $wpdb;
if (!$max_page) {
preg_match('#FROM (.*) GROUP BY#', $request, $matches);
$fromwhere = $matches[1];
$numposts = $wpdb->get_var("SELECT COUNT(ID) FROM $fromwhere");
$max_page = ceil($numposts / $posts_per_page);
}
if (!$paged)
$paged = 1;
$nextpage = intval($paged) + 1;
if ((! is_single()) && (empty($paged) || $nextpage <= $max_page)) {
echo '<a href="';
next_posts($max_page);
echo '">'. preg_replace('/&([^#])(?![a-z]{1,8};)/', '&#038;$1', $label) .'</a>';
}
}
function previous_posts() { // original by cfactor at cooltux.org
global $_SERVER, $paged, $pagenow;
global $querystring_start, $querystring_equal, $querystring_separator;
if (! is_single()) {
$nextpage = intval($paged) - 1;
if ($nextpage < 1) $nextpage = 1;
echo get_pagenum_link($nextpage);
}
}
function previous_posts_link($label='&laquo; Previous Page') {
global $paged;
if ((! is_single()) && ($paged > 1) ) {
echo '<a href="';
previous_posts();
echo '">'. preg_replace('/&([^#])(?![a-z]{1,8};)/', '&#038;$1', $label) .'</a>';
}
}
function posts_nav_link($sep=' &#8212; ', $prelabel='&laquo; Previous Page', $nxtlabel='Next Page &raquo;') {
global $request, $posts_per_page, $wpdb;
if (! is_single()) {
if (get_query_var('what_to_show') == 'posts') {
preg_match('#FROM (.*) GROUP BY#', $request, $matches);
$fromwhere = $matches[1];
$numposts = $wpdb->get_var("SELECT COUNT(ID) FROM $fromwhere");
$max_page = ceil($numposts / $posts_per_page);
} else {
$max_page = 999999;
}
if ($max_page > 1) {
previous_posts_link($prelabel);
echo preg_replace('/&([^#])(?![a-z]{1,8};)/', '&#038;$1', $sep);
next_posts_link($nxtlabel, $max_page);
}
}
}
?>