《PHP編程:WordPress中獲取頁面鏈接和標(biāo)題的相關(guān)PHP函數(shù)用法解析》要點(diǎn):
本文介紹了PHP編程:WordPress中獲取頁面鏈接和標(biāo)題的相關(guān)PHP函數(shù)用法解析,希望對您有用。如果有疑問,可以聯(lián)系我們。
PHP實(shí)例get_permalink()(獲取文章或頁面鏈接)
get_permalink() 用來根據(jù)固定連接返回文章或者頁面的鏈接.在獲取鏈接時 get_permalink() 函數(shù)必要知道要獲取的文章的 ID,如果在循環(huán)中則自動默認(rèn)使用當(dāng)前文章.
PHP實(shí)例用法
PHP實(shí)例
get_permalink( $id, $leavename );
PHP實(shí)例參數(shù)
PHP實(shí)例$id
PHP實(shí)例(混合)(可選)文章或者頁面的 ID(整數(shù));還可以是文章對象.
PHP實(shí)例默認(rèn)值:在循環(huán)中自動調(diào)用當(dāng)前的文章
PHP實(shí)例$leavename
PHP實(shí)例(布爾)(可選)轉(zhuǎn)化成鏈接是是否忽略文章別名.如果設(shè)置成 True,那么將返回 http://www.example.com/%postname% 而不是 http://www.example.com/my-post-name
PHP實(shí)例默認(rèn)值:None
PHP實(shí)例返回值
PHP實(shí)例(字符串 | 布爾)成功獲取鏈接則返回鏈接,失敗則返回 False.
PHP實(shí)例例子
PHP實(shí)例根據(jù) ID 獲取文章或頁面的鏈接:
PHP實(shí)例
<a href="<?php echo get_permalink( 268 ); ?>">獲取指定 ID 的文章或頁面鏈接</a>
PHP實(shí)例循環(huán)中獲取當(dāng)前文章的鏈接:
PHP實(shí)例
<?php echo get_permalink(); ?>
PHP實(shí)例根據(jù)頁面題目獲取頁面鏈接:
PHP實(shí)例
<a href="<?php echo esc_url( get_permalink( get_page_by_title( '留言板' ) ) ); ?>">留言板</a>
PHP實(shí)例其它
PHP實(shí)例此函數(shù)位于:wp-includes/link-template.php
PHP實(shí)例wp_title()(獲取網(wǎng)頁標(biāo)題)
wp_title() 用來獲取當(dāng)前網(wǎng)頁的標(biāo)題,也便是 title 標(biāo)簽里邊的內(nèi)容.
PHP實(shí)例wp_title() 能在不同的頁面自動生成不同的標(biāo)題(好比首頁就是網(wǎng)站標(biāo)題、文章頁就是文章標(biāo)題).WordPress 官方的主題都在使用這個函數(shù)生成標(biāo)題,但是在國內(nèi)的主題中卻總是被忽視(因?yàn)槟J(rèn)情況下這個函數(shù)對 SEO 并不是太好).
PHP實(shí)例我還是推薦使用這個函數(shù)調(diào)用標(biāo)題,更加符合主題開發(fā)規(guī)范,如果你要讓他變的更加符合 SEO,可以使用過濾器優(yōu)化一下,本文結(jié)尾有優(yōu)化辦法.
PHP實(shí)例用法
PHP實(shí)例
wp_title( $sep, $display, $seplocation );
PHP實(shí)例參數(shù)
PHP實(shí)例$sep
PHP實(shí)例(字符串)(可選)題目內(nèi)容的分隔符,一般設(shè)置成 “|” 或者 “-”.
PHP實(shí)例默認(rèn)值:?(?)
PHP實(shí)例$display
PHP實(shí)例(布爾)(可選)是否直接打印題目,如果設(shè)置成 False 則返回題目,可以存儲到變量里.
PHP實(shí)例默認(rèn)值:True(直接打印輸出)
PHP實(shí)例$seplocation
PHP實(shí)例(字符串)(可選)分隔符所在位置,左邊還是右邊,如果傳遞 “right” 則為右邊,其它任何內(nèi)容都是左邊.
PHP實(shí)例默認(rèn)值:空字符串(左邊)
PHP實(shí)例返回值
PHP實(shí)例(字符串)如果 $display 參數(shù)設(shè)置成 False,才能返回題目的內(nèi)容,根據(jù)不同的題目會返回不同的內(nèi)容,默認(rèn)情況下返回的內(nèi)容是這樣的:
PHP實(shí)例如果你想更加詳細(xì)的了解,可以閱讀下邊的函數(shù)源碼:
PHP實(shí)例
/**
* Display or retrieve page title for all areas of blog.
*
* By default, the page title will display the separator before the page title,
* so that the blog title will be before the page title. This is not good for
* title display, since the blog title shows up on most tabs and not what is
* important, which is the page that the user is looking at.
*
* There are also SEO benefits to having the blog title after or to the 'right'
* or the page title. However, it is mostly common sense to have the blog title
* to the right with most browsers supporting tabs. You can achieve this by
* using the seplocation parameter and setting the value to 'right'. This change
* was introduced around 2.5.0, in case backwards compatibility of themes is
* important.
*
* @since 1.0.0
*
* @param string $sep Optional, default is '?'. How to separate the various items within the page title.
* @param bool $display Optional, default is true. Whether to display or retrieve title.
* @param string $seplocation Optional. Direction to display title, 'right'.
* @return string|null String on retrieve, null when displaying.
*/
function wp_title($sep = '?', $display = true, $seplocation = '') {
global $wp_locale;
$m = get_query_var('m');
$year = get_query_var('year');
$monthnum = get_query_var('monthnum');
$day = get_query_var('day');
$search = get_query_var('s');
$title = '';
$t_sep = '%WP_TITILE_SEP%'; // Temporary separator, for accurate flipping, if necessary
// If there is a post
if ( is_single() || ( is_home() && !is_front_page() ) || ( is_page() && !is_front_page() ) ) {
$title = single_post_title( '', false );
}
// If there's a post type archive
if ( is_post_type_archive() ) {
$post_type = get_query_var( 'post_type' );
if ( is_array( $post_type ) )
$post_type = reset( $post_type );
$post_type_object = get_post_type_object( $post_type );
if ( ! $post_type_object->has_archive )
$title = post_type_archive_title( '', false );
}
// If there's a category or tag
if ( is_category() || is_tag() ) {
$title = single_term_title( '', false );
}
// If there's a taxonomy
if ( is_tax() ) {
$term = get_queried_object();
if ( $term ) {
$tax = get_taxonomy( $term->taxonomy );
$title = single_term_title( $tax->labels->name . $t_sep, false );
}
}
// If there's an author
if ( is_author() && ! is_post_type_archive() ) {
$author = get_queried_object();
if ( $author )
$title = $author->display_name;
}
// Post type archives with has_archive should override terms.
if ( is_post_type_archive() && $post_type_object->has_archive )
$title = post_type_archive_title( '', false );
// If there's a month
if ( is_archive() && !empty($m) ) {
$my_year = substr($m, 0, 4);
$my_month = $wp_locale->get_month(substr($m, 4, 2));
$my_day = intval(substr($m, 6, 2));
$title = $my_year . ( $my_month ? $t_sep . $my_month : '' ) . ( $my_day ? $t_sep . $my_day : '' );
}
// If there's a year
if ( is_archive() && !empty($year) ) {
$title = $year;
if ( !empty($monthnum) )
$title .= $t_sep . $wp_locale->get_month($monthnum);
if ( !empty($day) )
$title .= $t_sep . zeroise($day, 2);
}
// If it's a search
if ( is_search() ) {
/* translators: 1: separator, 2: search phrase */
$title = sprintf(__('Search Results %1$s %2$s'), $t_sep, strip_tags($search));
}
// If it's a 404 page
if ( is_404() ) {
$title = __('Page not found');
}
$prefix = '';
if ( !empty($title) )
$prefix = " $sep ";
/**
* Filter the parts of the page title.
*
* @since 4.0.0
*
* @param array $title_array Parts of the page title.
*/
$title_array = apply_filters( 'wp_title_parts', explode( $t_sep, $title ) );
// Determines position of the separator and direction of the breadcrumb
if ( 'right' == $seplocation ) { // sep on right, so reverse the order
$title_array = array_reverse( $title_array );
$title = implode( " $sep ", $title_array ) . $prefix;
} else {
$title = $prefix . implode( " $sep ", $title_array );
}
/**
* Filter the text of the page title.
*
* @since 2.0.0
*
* @param string $title Page title.
* @param string $sep Title separator.
* @param string $seplocation Location of the separator (left or right).
*/
$title = apply_filters( 'wp_title', $title, $sep, $seplocation );
// Send it out
if ( $display )
echo $title;
else
return $title;
}
PHP實(shí)例很顯然默認(rèn)情況下標(biāo)題是比擬簡陋的,對 SEO 并不是很友好.
PHP實(shí)例例子
PHP實(shí)例
<title><?php wp_title( '|', true, 'right' ); ?></title>
PHP實(shí)例其它
PHP實(shí)例題目可以使用 wp_title 過濾器定制,此函數(shù)位于:wp-includes/general-template.php
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