/', $content, $matches);
if ($matches && !is_page('about')) {
foreach ($matches[2] as $val) {
if (strpos($val, '://') !== false && strpos($val, home_url()) === false && !preg_match('/\\.(jpg|jpeg|png|ico|bmp|gif|tiff)/i', $val)) {
$content = str_replace("href=\"{$val}\"", "href=\"" . get_permalink(git_page_id('go')) . "?url={$val}\" ", $content);
}
}
}
return $content;
}
add_filter('the_content', 'git_go_url', 999);
//关键字
function deel_keywords() {
global $s, $post;
$keywords = '';
if (is_single()) {
if (get_the_tags($post->ID)) {
foreach (get_the_tags($post->ID) as $tag) $keywords.= $tag->name . ', ';
}
foreach (get_the_category($post->ID) as $category) $keywords.= $category->cat_name . ', ';
$keywords = substr_replace($keywords, '', -2);
} elseif (is_home()) {
//$keywords = git_get_option('git_keywords');
} elseif (is_tag()) {
$keywords = single_tag_title('', false);
} elseif (is_category()) {
$keywords = single_cat_title('', false);
} elseif (is_search()) {
$keywords = esc_html($s, 1);
} else {
$keywords = trim(wp_title('', false));
}
if ($keywords) {
echo "\n";
}
}
add_action('wp_head', 'deel_keywords');
//网站描述
function deel_description() {
global $s, $post;
$description = '';
$blog_name = get_bloginfo('name');
$iexcerpt = $post->post_excerpt;
if (is_singular()) {
if (!empty($iexcerpt)) {
$text = $iexcerpt;
} else {
$text = strip_shortcodes($post->post_content);
}
$description = trim(str_replace(array(
"\r\n",
"\r",
"\n",
" ",
" "
) , " ", str_replace("\"", "'", strip_tags($text))));
if (!($description)) $description = $blog_name . "-" . trim(wp_title('', false));
} elseif (is_home()) {
//$description = git_get_option('git_description'); // 首頁要自己加
} elseif (is_tag()) {
$description = $blog_name . "'" . single_tag_title('', false) . "'";
} elseif (is_category()) {
$description = trim(strip_tags(category_description()));
} elseif (is_archive()) {
$description = $blog_name . "'" . trim(wp_title('', false)) . "'";
} elseif (is_search()) {
$description = $blog_name . ": '" . esc_html($s, 1) . "' 的搜索結果";
} else {
$description = $blog_name . "'" . trim(wp_title('', false)) . "'";
}
$description = mb_substr($description, 0, 220, 'utf-8');
echo "\n";
}
add_action('wp_head', 'deel_description');
//WordPress文字标签关键词自动内链
/*
$match_num_min = git_get_option('git_autolink_1'); //一篇文章中同一個標籤少於幾次不自動鏈接
$match_num_max = git_get_option('git_autolink_2'); //一篇文章中同一個標籤最多自動鏈接幾次
function tag_sort($a, $b) {
if ($a->name == $b->name) return 0;
return (strlen($a->name) > strlen($b->name)) ? -1 : 1;
}
function tag_link($content) {
global $match_num_min, $match_num_max;
$posttags = get_the_tags();
if ($posttags) {
usort($posttags, "tag_sort");
foreach ($posttags as $tag) {
$link = get_tag_link($tag->term_id);
$keyword = $tag->name;
$cleankeyword = stripslashes($keyword);
$url = "";
$limit = $match_num_max;
$content = preg_replace('|(]+>)(.*)(' . $keyword . ')(.*)(]*>)|U' . $case, '$1$2%&&&&&%$4$5', $content);
$content = preg_replace('|()|U' . $case, '$1$2%&&&&&%$4$5', $content);
$content = preg_replace('|(]+>)(.*)(' . $keyword . ')(.*)(]*>)|U' . $case, '$1$2%&&&&&%$4$5', $content);
$cleankeyword = preg_quote($cleankeyword, '\'');
$regEx = '\'(?!((<.*?)|(]*?)>)|([^>]*?))\'s' . $case;
$content = preg_replace($regEx, $url, $content, $limit);
$content = str_replace('%&&&&&%', stripslashes($keyword) , $content);
}
}
return $content;
}
add_filter('the_content', 'tag_link', 1);
*/
//图片img标签添加alt，title属性
function imagesalt($content){
global $post;
$pattern = "//i";
$replacement = '';
$content = preg_replace($pattern, $replacement, $content);
return $content;
}
add_filter('the_content', 'imagesalt');
//图片A标签添加title属性
function aimagesalt($content){
global $post;
$pattern = "//i";
$replacement = '';
$content = preg_replace($pattern, $replacement, $content);
return $content;
}
add_filter('the_content', 'aimagesalt');
//自动给文章以及评论添加nofollow属性
function git_auto_nofollow($content)
{
$regexp = "]*href=(\"??)([^\" >]*?)\\1[^>]*>";
if (preg_match_all("/{$regexp}/siU", $content, $matches, PREG_SET_ORDER)) {
if (!empty($matches)) {
$srcUrl = get_option('siteurl');
for ($i = 0; $i < count($matches); $i++) {
$tag = $matches[$i][0];
$tag2 = $matches[$i][0];
$url = $matches[$i][0];
$noFollow = '';
$pattern = '/rel\\s*=\\s*"\\s*[n|d]ofollow\\s*"/';
preg_match($pattern, $tag2, $match, PREG_OFFSET_CAPTURE);
if (count($match) < 1) {
$noFollow .= ' rel="nofollow" ';
}
$pos = strpos($url, $srcUrl);
if ($pos === false) {
$tag = rtrim($tag, '>');
$tag .= $noFollow . '>';
$content = str_replace($tag2, $tag, $content);
}
}
}
}
$content = str_replace(']]>', ']]>', $content);
return $content;
}
add_filter('the_content', 'git_auto_nofollow');
//评论分页的seo处理
function canonical_for_git(){
global $post;
if (get_query_var('paged') > 1) {
echo "\n";
echo "\n";
echo "";
}
}
add_action('wp_head', 'canonical_for_git');