PHP
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发表于 5年以前
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add_action ( 'wp_head', 'wp_keywords' ); // Ìi¼Ó¹Ø¼u×Ö
add_action ( 'wp_head', 'wp_description' ); // Ìi¼ÓÒ³ÃaeÃeÊo
function wp_keywords() {
global $s, $post;
$keywords = '';
if (is_single ()) { //Èç¹uÊÇÎÄÕÂÒ³£¬¹Ø¼u´ÊÔoÊÇ£º±eÇ(C)+*ÖÀaID
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 = 'ÎÒÊÇÖ÷Ò³¹Ø¼u´Ê'; //Ö÷Ò³¹Ø¼u´ÊÉeÖÃ
} elseif (is_tag ()) { //±eÇ(C)Ò³¹Ø¼u´ÊÉeÖÃ
$keywords = single_tag_title ( '', false );
} elseif (is_category ()) {//*ÖÀaÒ³¹Ø¼u´ÊÉeÖÃ
$keywords = single_cat_title ( '', false );
} elseif (is_search ()) {//ËÑË÷Ò³¹Ø¼u´ÊÉeÖÃ
$keywords = esc_html ( $s, 1 );
} else {//ĬÈÏÒ³¹Ø¼u´ÊÉeÖÃ
$keywords = trim ( wp_title ( '', false ) );
}
if ($keywords) { //Êa³o¹Ø¼u´Ê
echo "<meta name=\"keywords\" content=\"$keywords\" />\n";
}
}
function wp_description() {
global $s, $post;
$description = '';
$blog_name = get_bloginfo ( 'name' );
if (is_singular ()) { //ÎÄÕÂÒ³Èç¹u´aeÔÚÃeÊo×ֶΣ¬ÔoÏÔʾÃeÊo£¬*ñÔo½ØÈ¡ÎÄÕÂÄÚÈÝ
if (! empty ( $post->post_excerpt )) {
$text = $post->post_excerpt;
} else {
$text = $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 ()) {//Ê×Ò³ÏÔʾÃeÊoÉeÖÃ
$description = $blog_name . "-" . get_bloginfo ( 'description' ) .'Ê×Ò³ÒªÏÔʾµÄÃeÊo'; // Ê×i"Òª×Ô¼º¼Ó
} elseif (is_tag ()) {//±eÇ(C)Ò³ÏÔʾÃeÊoÉeÖÃ
$description = $blog_name . "ÓÐ¹Ø '" . single_tag_title ( '', false ) . "' µÄÎÄÕÂ";
} elseif (is_category ()) {//*ÖÀaÒ³ÏÔʾÃeÊoÉeÖÃ
$description = $blog_name . "ÓÐ¹Ø '" . single_cat_title ( '', false ) . "' µÄÎÄÕÂ";
} elseif (is_archive ()) {//ÎĵµÒ³ÏÔʾÃeÊoÉeÖÃ
$description = $blog_name . "ÔÚ: '" . trim ( wp_title ( '', false ) ) . "' µÄÎÄÕÂ";
} elseif (is_search ()) {//ËÑË÷Ò³ÏÔʾÃeÊoÉeÖÃ
$description = $blog_name . ": '" . esc_html ( $s, 1 ) . "' µÄËÑË÷½Y¹u";
} else {//ĬÈÏÆaËuÒ³ÏÔʾÃeÊoÉeÖÃ
$description = $blog_name . "ÓÐ¹Ø '" . trim ( wp_title ( '', false ) ) . "' µÄÎÄÕÂ";
}
//Êa³oÃeÊo
$description = mb_substr ( $description, 0, 220, 'utf-8' ) . '..';
echo "<meta name=\"description\" content=\"$description\" />\n";
}
Í»³o¹Ø¼u×ÖÔÚËÑÑ°½a¹u£º
function wps_highlight_results($text){
if(is_search()){
$sr = get_query_var('s');
$keys = explode(" ",$sr);
$text = preg_replace('/('.implode('|', $keys) .')/iu', '<strong>'.$sr.'</strong>', $text);
}
return $text;
}
add_filter('the_excerpt', 'wps_highlight_results');
add_filter('the_title', 'wps_highlight_results');
ʹÓô˴uÂe¶ÎÍ»³oÏÔʾËÑË÷´ÊÔÚÄaµÄ²(C)¿ÍËÑË÷½a¹uthe_excerptºÍthe_title¡£