comment-functions.php

php 开发的内容管理系统

		}
		if (!empty($CSSclass)) {
			echo ' class="'.$CSSclass.'"';
		}
		$title = wp_specialchars(apply_filters('the_title', get_the_title()), true);
		echo ' title="' . sprintf( __('Comment on %s'), $title ) .'">';
		comments_number($zero, $one, $more, $number);
		echo '</a>';
	}
	}
}

function get_comment_ID() {
	global $comment;
	return apply_filters('get_comment_ID', $comment->comment_ID);
}

function comment_ID() {
	echo get_comment_ID();
}

function get_comment_author() {
	global $comment;
	if ( empty($comment->comment_author) )
		$author = __('Anonymous');
	else
		$author = $comment->comment_author;
	return apply_filters('get_comment_author', $author);
}

function comment_author() {
	$author = apply_filters('comment_author', get_comment_author() );
	echo $author;
}

function get_comment_author_email() {
	global $comment;
	return apply_filters('get_comment_author_email', $comment->comment_author_email);	
}

function comment_author_email() {
	echo apply_filters('author_email', get_comment_author_email() );
}

function get_comment_author_link() {
	global $comment;
	$url    = get_comment_author_url();
	$author = get_comment_author();

	if ( empty( $url ) || 'http://' == $url )
		$return = $author;
	else
		$return = "<a href='$url' rel='external nofollow'>$author</a>";
	return apply_filters('get_comment_author_link', $return);
}

function comment_author_link() {
	echo get_comment_author_link();
}

function get_comment_type() {
	global $comment;

	if ( '' == $comment->comment_type )
		$comment->comment_type = 'comment';

	return apply_filters('get_comment_type', $comment->comment_type);
}

function comment_type($commenttxt = 'Comment', $trackbacktxt = 'Trackback', $pingbacktxt = 'Pingback') {
	$type = get_comment_type();
	switch( $type ) {
		case 'trackback' :
			echo $trackbacktxt;
			break;
		case 'pingback' :
			echo $pingbacktxt;
			break;
		default :
			echo $commenttxt;
	}
}

function get_comment_author_url() {
	global $comment;
	return apply_filters('get_comment_author_url', $comment->comment_author_url);
}

function comment_author_url() {
	echo apply_filters('comment_url', get_comment_author_url());
}

function comment_author_email_link($linktext='', $before='', $after='') {
	global $comment;
	$email = apply_filters('comment_email', $comment->comment_author_email);
	if ((!empty($email)) && ($email != '@')) {
	$display = ($linktext != '') ? $linktext : $email;
		echo $before;
		echo "<a href='mailto:$email'>$display</a>";
		echo $after;
	}
}

function get_comment_author_url_link( $linktext = '', $before = '', $after = '' ) {
	global $comment;
	$url = get_comment_author_url();
	$display = ($linktext != '') ? $linktext : $url;
	$return = "$before<a href='$url' rel='external'>$display</a>$after";
	return apply_filters('get_comment_author_url_link', $return);
}

function comment_author_url_link( $linktext = '', $before = '', $after = '' ) {
	echo get_comment_author_url_link( $linktext, $before, $after );
}

function get_comment_author_IP() {
	global $comment;
	return apply_filters('get_comment_author_IP', $comment->comment_author_IP);
}

function comment_author_IP() {
	echo get_comment_author_IP();
}

function get_comment_text() {
	global $comment;
	return apply_filters('get_comment_text', $comment->comment_content);
}

function comment_text() {
	echo apply_filters('comment_text', get_comment_text() );
}

function get_comment_excerpt() {
	global $comment;
	$comment_text = strip_tags($comment->comment_content);
	$blah = explode(' ', $comment_text);
	if (count($blah) > 20) {
		$k = 20;
		$use_dotdotdot = 1;
	} else {
		$k = count($blah);
		$use_dotdotdot = 0;
	}
	$excerpt = '';
	for ($i=0; $i<$k; $i++) {
		$excerpt .= $blah[$i] . ' ';
	}
	$excerpt .= ($use_dotdotdot) ? '...' : '';
	return apply_filters('get_comment_excerpt', $excerpt);
}

function comment_excerpt() {
	echo apply_filters('comment_excerpt', get_comment_excerpt() );
}

function get_comment_date( $d = '' ) {
	global $comment;
	if ( '' == $d )
		$date = mysql2date( get_settings('date_format'), $comment->comment_date);
	else
		$date = mysql2date($d, $comment->comment_date);
	return apply_filters('get_comment_date', $date);
}

function comment_date( $d = '' ) {
	echo get_comment_date( $d );
}

function get_comment_time( $d = '', $gmt = false ) {
	global $comment;
	$comment_date = $gmt? $comment->comment_date_gmt : $comment->comment_date;
	if ( '' == $d )
		$date = mysql2date(get_settings('time_format'), $comment_date);
	else
		$date = mysql2date($d, $comment_date);
	return apply_filters('get_comment_time', $date);
}

function comment_time( $d = '' ) {
	echo get_comment_time($d);
}

function get_trackback_url() {
	global $id;
	$tb_url = get_settings('siteurl') . '/wp-trackback.php?p=' . $id;

	if ( '' != get_settings('permalink_structure') )
		$tb_url = trailingslashit(get_permalink()) . 'trackback/';

	return $tb_url;
}
function trackback_url( $display = true ) {
	if ( $display)
		echo get_trackback_url();
	else
		return get_trackback_url();
}

function trackback_rdf($timezone = 0) {
	global $id;
	if (!stristr($_SERVER['HTTP_USER_AGENT'], 'W3C_Validator')) {
	echo '<rdf:RDF xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#" 
	    xmlns:dc="http://purl.org/dc/elements/1.1/"
	    xmlns:trackback="http://madskills.com/public/xml/rss/module/trackback/">
		<rdf:Description rdf:about="';
	the_permalink();
	echo '"'."\n";
	echo '    dc:identifier="';
	the_permalink();
	echo '"'."\n";
	echo '    dc:title="'.str_replace('--', '&#x2d;&#x2d;', wptexturize(strip_tags(get_the_title()))).'"'."\n";
	echo '    trackback:ping="'.trackback_url(0).'"'." />\n";
	echo '</rdf:RDF>';
	}
}

function comments_open() {
	global $post;
	if ( 'open' == $post->comment_status )
		return true;
	else
		return false;
}

function pings_open() {
	global $post;
	if ( 'open' == $post->ping_status ) 
		return true;
	else
		return false;
}

// Non-template functions

function get_lastcommentmodified($timezone = 'server') {
	global $cache_lastcommentmodified, $pagenow, $wpdb;
	$add_seconds_blog = get_settings('gmt_offset') * 3600;
	$add_seconds_server = date('Z');
	$now = current_time('mysql', 1);
	if ( !isset($cache_lastcommentmodified[$timezone]) ) {
		switch(strtolower($timezone)) {
			case 'gmt':
				$lastcommentmodified = $wpdb->get_var("SELECT comment_date_gmt FROM $wpdb->comments WHERE comment_date_gmt <= '$now' ORDER BY comment_date_gmt DESC LIMIT 1");
				break;
			case 'blog':
				$lastcommentmodified = $wpdb->get_var("SELECT comment_date FROM $wpdb->comments WHERE comment_date_gmt <= '$now' ORDER BY comment_date_gmt DESC LIMIT 1");
				break;
			case 'server':
				$lastcommentmodified = $wpdb->get_var("SELECT DATE_ADD(comment_date_gmt, INTERVAL '$add_seconds_server' SECOND) FROM $wpdb->comments WHERE comment_date_gmt <= '$now' ORDER BY comment_date_gmt DESC LIMIT 1");
				break;
		}
		$cache_lastcommentmodified[$timezone] = $lastcommentmodified;
	} else {
		$lastcommentmodified = $cache_lastcommentmodified[$timezone];
	}
	return $lastcommentmodified;
}

function get_commentdata( $comment_ID, $no_cache = 0, $include_unapproved = false ) { // less flexible, but saves DB queries
	global $postc, $id, $commentdata, $wpdb;
	if ($no_cache) {
		$query = "SELECT * FROM $wpdb->comments WHERE comment_ID = '$comment_ID'";
		if (false == $include_unapproved) {
		    $query .= " AND comment_approved = '1'";
		}
    		$myrow = $wpdb->get_row($query, ARRAY_A);
	} else {
		$myrow['comment_ID'] = $postc->comment_ID;
		$myrow['comment_post_ID'] = $postc->comment_post_ID;
		$myrow['comment_author'] = $postc->comment_author;
		$myrow['comment_author_email'] = $postc->comment_author_email;
		$myrow['comment_author_url'] = $postc->comment_author_url;
		$myrow['comment_author_IP'] = $postc->comment_author_IP;
		$myrow['comment_date'] = $postc->comment_date;
		$myrow['comment_content'] = $postc->comment_content;
		$myrow['comment_karma'] = $postc->comment_karma;
		$myrow['comment_approved'] = $postc->comment_approved;
		$myrow['comment_type'] = $postc->comment_type;
	}
	return $myrow;
}

function pingback($content, $post_ID) {
	global $wp_version, $wpdb;
	include_once (ABSPATH . WPINC . '/class-IXR.php');

	// original code by Mort (http://mort.mine.nu:8080)
	$log = debug_fopen(ABSPATH . '/pingback.log', 'a');
	$post_links = array();
	debug_fwrite($log, 'BEGIN '.date('YmdHis', time())."\n");

	$pung = get_pung($post_ID);

	// Variables
	$ltrs = '\w';
	$gunk = '/#~:.?+=&%@!\-';
	$punc = '.:?\-';
	$any = $ltrs . $gunk . $punc;

	// Step 1
	// Parsing the post, external links (if any) are stored in the $post_links array
	// This regexp comes straight from phpfreaks.com
	// http://www.phpfreaks.com/quickcode/Extract_All_URLs_on_a_Page/15.php
	preg_match_all("{\b http : [$any] +? (?= [$punc] * [^$any] | $)}x", $content, $post_links_temp);

	// Debug
	debug_fwrite($log, 'Post contents:');
	debug_fwrite($log, $content."\n");
	
	// Step 2.
	// Walking thru the links array
	// first we get rid of links pointing to sites, not to specific files