functions.php

来自「在综合英文版XOOPS 2.09, 2.091, 2.092 的基础上正式发布X」· PHP 代码 · 共 1,693 行 · 第 1/4 页

		$content = str_replace("\n<!--nextpage-->", '<!--nextpage-->', $content);
		$content = str_replace("<!--nextpage-->\n", '<!--nextpage-->', $content);
		$pages = explode('<!--nextpage-->', $content);
		$numpages = count($pages);
	} else {
		$pages[0] = stripslashes($post->post_content);
		$multipage = 0;
	}
	return true;
}

function is_new_day() {
	global $day, $previousday;
	if ($day != $previousday) {
		return(1);
	} else {
		return(0);
	}
}
// Filters: these are the core of WP's plugin architecture

function apply_filters($tag, $string) {
	global $wp_filter;;
	if (isset($wp_filter['all'])) {
		foreach ($wp_filter['all'] as $priority => $functions) {
			if (isset($wp_filter[$tag][$priority]))
				$wp_filter[$tag][$priority] = array_merge($wp_filter['all'][$priority], $wp_filter[$tag][$priority]);
			else
				$wp_filter[$tag][$priority] = array_merge($wp_filter['all'][$priority], array());
			$wp_filter[$tag][$priority] = array_unique($wp_filter[$tag][$priority]);
		}

	}

	if (isset($wp_filter[$tag])) {
		ksort($wp_filter[$tag]);
		foreach ($wp_filter[$tag] as $priority => $functions) {
			foreach($functions as $function) {
//					if ($tag == "the_content") echo $function."<br>\n";
					$string = $function($string);
			}
		}
	}
	return $string;
}

function add_filter($tag, $function_to_add, $priority = 10) {
	global $wp_filter;
	// So the format is wp_filter['tag']['array of priorities']['array of functions']
	if (!@in_array($function_to_add, $wp_filter[$tag]["$priority"])) {
		$wp_filter[$tag]["$priority"][] = $function_to_add;
	}
	return true;
}

function remove_filter($tag, $function_to_remove, $priority = 10) {
	global $wp_filter;;
	if (@in_array($function_to_remove, $wp_filter[$tag]["$priority"])) {
		$new_function_list = array();
		foreach ($wp_filter[$tag]["$priority"] as $function) {
			if ($function_to_remove != $function) {
				$new_function_list[] = $function;
			}
		}
		if (!count($new_function_list)) {
			if (!empty($wp_filter[$tag]["$priority"])) {
				unset($wp_filter[$tag]["$priority"]);
			}
		} else {
			$wp_filter[$tag]["$priority"] = $new_function_list;
		}
	}
	//die(var_dump($wp_filter));
	return true;
}
// The *_action functions are just aliases for the *_filter functions, they take special strings instead of generic content

function do_action($tag, $string) {
	return apply_filters($tag, $string);
}

function add_action($tag, $function_to_add, $priority = 10) {
	add_filter($tag, $function_to_add, $priority);
}

function remove_action($tag, $function_to_remove, $priority = 10) {
	remove_filter($tag, $function_to_remove, $priority);
}

function wp_head() {
	do_action('wp_head', '');
}

function mb_conv($str,$to,$from)
{
	if (function_exists('xoopschina_mb_convert_encoding')) {
		$retstr = xoopschina_mb_convert_encoding($str,$to,$from);
	} else {
		$retstr = $str;
	}
	return $retstr;
}
/* rewrite_rules
 * Construct rewrite matches and queries from permalink structure.
 * matches - The name of the match array to use in the query strings.
 *           If empty, $1, $2, $3, etc. are used.
 * Returns an associate array of matches and queries.
 */
function rewrite_rules($matches = '', $permalink_structure = '') {

    function preg_index($number, $matches = '') {
        $match_prefix = '$';
        $match_suffix = '';

        if (! empty($matches)) {
            $match_prefix = '$' . $matches . '[';
                                               $match_suffix = ']';
        }

        return "$match_prefix$number$match_suffix";
    }

    $rewrite = array();

    if (empty($permalink_structure)) {
        $permalink_structure = get_settings('permalink_structure');

        if (empty($permalink_structure)) {
            return $rewrite;
        }
    }

    $rewritecode =
	array(
	'%year%',
	'%monthnum%',
	'%day%',
	'%hour%',
	'%minute%',
	'%second%',
	'%postname%',
	'%post_id%'
	);

    $rewritereplace =
	array(
	'([0-9]{4})?',
	'([0-9]{1,2})?',
	'([0-9]{1,2})?',
	'([0-9]{1,2})?',
	'([0-9]{1,2})?',
	'([0-9]{1,2})?',
	'([_0-9a-z-]+)?',
	'([0-9]+)?'
	);

    $queryreplace =
	array (
	'year=',
	'monthnum=',
	'day=',
	'hour=',
	'minute=',
	'second=',
	'name=',
	'p='
	);


    $match = str_replace('/', '/?', $permalink_structure);
    $match = preg_replace('|/[?]|', '', $match, 1);

    $match = str_replace($rewritecode, $rewritereplace, $match);
    $match = preg_replace('|[?]|', '', $match, 1);

    $feedmatch = trailingslashit(str_replace('?/?', '/', $match));
    $trackbackmatch = $feedmatch;

    preg_match_all('/%.+?%/', $permalink_structure, $tokens);

    $query = 'index.php?';
    $feedquery = 'wp-feed.php?';
    $trackbackquery = 'wp-trackback.php?';
    for ($i = 0; $i < count($tokens[0]); ++$i) {
             if (0 < $i) {
                 $query .= '&';
                 $feedquery .= '&';
                 $trackbackquery .= '&';
             }

             $query_token = str_replace($rewritecode, $queryreplace, $tokens[0][$i]) . preg_index($i+1, $matches);
             $query .= $query_token;
             $feedquery .= $query_token;
             $trackbackquery .= $query_token;
             }
    ++$i;

    // Add post paged stuff
    $match .= '([0-9]+)?/?$';
    $query .= '&page=' . preg_index($i, $matches);

    // Add post feed stuff
    $feedregex = '(feed|rdf|rss|rss2|atom)/?$';
    $feedmatch .= $feedregex;
    $feedquery .= '&feed=' . preg_index($i, $matches);

    // Add post trackback stuff
    $trackbackregex = 'trackback/?$';
    $trackbackmatch .= $trackbackregex;

    // Site feed
    $sitefeedmatch = 'feed/?([_0-9a-z-]+)?/?$';
    $sitefeedquery = 'wp-feed.php?feed=' . preg_index(1, $matches);

    // Site comment feed
    $sitecommentfeedmatch = 'comments/feed/?([_0-9a-z-]+)?/?$';
    $sitecommentfeedquery = 'wp-feed.php?feed=' . preg_index(1, $matches) . '&withcomments=1';

    // Code for nice categories and authors, currently not very flexible
    $front = substr($permalink_structure, 0, strpos($permalink_structure, '%'));
	if ( '' == get_settings('category_base') )
		$catmatch = $front . 'category/';
	else
	    $catmatch = get_settings('category_base') . '/';
    $catmatch = preg_replace('|^/+|', '', $catmatch);

    $catfeedmatch = $catmatch . '(.*)/' . $feedregex;
    $catfeedquery = 'wp-feed.php?category_name=' . preg_index(1, $matches) . '&feed=' . preg_index(2, $matches);

    $catmatch = $catmatch . '?(.*)';
    $catquery = 'index.php?category_name=' . preg_index(1, $matches);

    $authormatch = $front . 'author/';
    $authormatch = preg_replace('|^/+|', '', $authormatch);

    $authorfeedmatch = $authormatch . '(.*)/' . $feedregex;
    $authorfeedquery = 'wp-feed.php?author_name=' . rawurlencode(preg_index(1, $matches)) . '&feed=' . preg_index(2, $matches);

    $authormatch = $authormatch . '?(.*)';
    $authorquery = 'index.php?author_name=' . rawurlencode(preg_index(1, $matches));

    $rewrite = array(
                     $catfeedmatch => $catfeedquery,
                     $catmatch => $catquery,
                     $authorfeedmatch => $authorfeedquery,
                     $authormatch => $authorquery,
                     $match => $query,
                     $feedmatch => $feedquery,
                     $trackbackmatch => $trackbackquery,
                     $sitefeedmatch => $sitefeedquery,
                     $sitecommentfeedmatch => $sitecommentfeedquery
                     );

    return $rewrite;
}

function get_posts($args) {
	global $wpdb, $tableposts;
	parse_str($args, $r);
	if (!isset($r['numberposts'])) $r['numberposts'] = 5;
	if (!isset($r['offset'])) $r['offset'] = 0;
	// The following not implemented yet
	if (!isset($r['category'])) $r['category'] = '';
	if (!isset($r['orderby'])) $r['orderby'] = '';
	if (!isset($r['order'])) $r['order'] = '';

	$now = current_time('mysql');

	$posts = $wpdb->get_results("SELECT DISTINCT * FROM $tableposts WHERE post_date <= '$now' AND (post_status = 'publish') GROUP BY $tableposts.ID ORDER BY post_date DESC LIMIT " . $r['offset'] . ',' . $r['numberposts']);

	return $posts;
}

function check_comment($author, $email, $url, $comment, $user_ip) {
	if (1 == get_settings('comment_moderation')) return false; // If moderation is set to manual

	if ( (count(explode('http:', $comment)) - 1) >= get_settings('comment_max_links') )
		return false; // Check # of external links

	if ('' == trim( get_settings('moderation_keys') ) ) return true; // If moderation keys are empty
	$words = explode("\n", get_settings('moderation_keys') );
	foreach ($words as $word) {
	$word = trim($word);
	$pattern = "#$word#i";
		if ( preg_match($pattern, $author) ) return false;
		if ( preg_match($pattern, $email) ) return false;
		if ( preg_match($pattern, $url) ) return false;
		if ( preg_match($pattern, $comment) ) return false;
		if ( preg_match($pattern, $user_ip) ) return false;
	}

	return true;
}

// Check for hacks file if the option is enabled
if (get_settings('hack_file')) {
	if (file_exists(XOOPS_ROOT_PATH.'/modules/wordpress/my-hacks.php'))
		require(XOOPS_ROOT_PATH.'/modules/wordpress/my-hacks.php');
}

function get_xoops_option($dirname,$conf_name) {
	global $xoopsDB;

    $query = "SELECT mid FROM ".$xoopsDB->prefix('modules')." WHERE dirname='".$dirname."' ";
	$result = $xoopsDB->query($query);
	$record= $xoopsDB->fetcharray($result);
	$mid = $record['mid'];

	$query = "SELECT conf_value,conf_valuetype FROM ".$xoopsDB->prefix('config')." WHERE conf_modid=".$mid." AND conf_name='".$conf_name."' ";
	$result = $xoopsDB->query($query);
	$record= $xoopsDB->fetcharray($result);
	$value = $record['conf_value'];
	$valuetype = $record['conf_valuetype'];

    switch ($valuetype) {
    case 'int':
        return intval($value);
        break;
    case 'array':
        return unserialize($value);
    case 'float':
        return (float)$value;
        break;
    case 'textarea':
        return $value;
    default:
        return $value;
        break;
    }

	return($value);
}
function block_style_get($echo = 'true') {
global $xoopsConfig;

	if (file_exists(XOOPS_ROOT_PATH.'/modules/wordpress/themes/'.$xoopsConfig['theme_set'].'/wp-blocks.css.php')) {
		$themes = $xoopsConfig['theme_set'];
	} else {
		$themes = "default";
	}
	$wp_block_style="";
	include_once(XOOPS_ROOT_PATH."/modules/wordpress/themes/".$themes."/wp-blocks.css.php");
	if ($echo) {
		if (trim($wp_block_style) != "") {
		echo <<< EOD
<style type="text/css" media="screen">
    <!--
	$wp_block_style
    -->
</style>
EOD;
		}
	} else {
		return trim($wp_block_style);
	}
}

function wp_refcheck($offset = "", $redirect = true) {
    global $siteurl;
	$ref = isset($_SERVER['HTTP_REFERER']) ? $_SERVER['HTTP_REFERER'] : $_ENV['HTTP_REFERER'];
	if ($ref == '') {
		if ($redirect) {
			if (defined('XOOPS_URL')) { //XOOPS Module mode
				redirect_header($siteurl, 1, "You cannot update Database contents.(Could not detect HTTP_REFERER)");
			} else {
				header("Location: $siteurl");
			}
		}
		return false;
	}
	if (strpos($ref, $siteurl.$offset) !== 0 ) {
		if ($redirect) {
			if (defined('XOOPS_URL')) { //XOOPS Module mode
				redirect_header($siteurl, 1, "You cannot update Database contents.(HTTP_REFERER is not valid site.)");
			} else {
				header("Location: $siteurl");
			}
		}
		return false;
	}
	return true;
}

function wp_get_rss_charset() {
  global $blog_charset;
	if (function_exists('xoopschina_mb_convert_encoding')) {
		if ($blog_charset != 'iso-8859-1') {
			$rss_charset = 'utf-8';
		} else {
			$rss_charset = $blog_charset;
		}
	}else{
		$rss_charset = $blog_charset;
	}
	return $rss_charset;
}

function wp_convert_rss_charset($srcstr) {
  global $blog_charset;
	$rss_charset = wp_get_rss_charset();
	if ($blog_charset != $rss_charset) {
		return xoopschina_mb_convert_encoding($srcstr,  $rss_charset, $blog_charset);
	} else {
		return $srcstr;
	}
}
function trailingslashit($string) {
    if ( '/' != substr($string, -1)) {
        $string .= '/';
    }
    return $string;
}

function get_version() {
	$old_stat=error_reporting(0);
	include (dirname(dirname(__FILE__))."/xoops_version.php");
	error_reporting($old_stat);
	return $modversion['version'];
}
?>