WordPress函数get_the_title()用法 获取指定/当前文章的标题

描述：

获取指定/当前文章的标题

用法：

<?php echo get_the_title( $ID ); ?>

参数：

$id

(integer or object) (可选) 文章的ID或指定从中获取标题的文章的对象。默认情况下，将获取当前文章。

默认值: null

源文件：

/**
* Retrieve post title.
*
* If the post is protected and the visitor is not an admin, then "Protected"
* will be displayed before the post title. If the post is private, then
* "Private" will be located before the post title.
*
* @since 0.71
*
* @param int|WP_Post $post Optional. Post ID or WP_Post object. Default is global $post.
* @return string
*/
function get_the_title( $post = 0 ) {
$post = get_post( $post );

$title = isset( $post->post_title ) ? $post->post_title : '';
$id = isset( $post->ID ) ? $post->ID : 0;

if ( ! is_admin() ) {
if ( ! empty( $post->post_password ) ) {

/**
* Filter the text prepended to the post title for protected posts.
*
* The filter is only applied on the front end.
*
* @since 2.8.0
*
* @param string $prepend Text displayed before the post title.
* Default 'Protected: %s'.
* @param WP_Post $post Current post object.
*/
$protected_title_format = apply_filters( 'protected_title_format', __( 'Protected: %s' ), $post );
$title = sprintf( $protected_title_format, $title );
} elseif ( isset( $post->post_status ) && 'private' == $post->post_status ) {

/**
* Filter the text prepended to the post title of private posts.
*
* The filter is only applied on the front end.
*
* @since 2.8.0
*
* @param string $prepend Text displayed before the post title.
* Default 'Private: %s'.
* @param WP_Post $post Current post object.
*/
$private_title_format = apply_filters( 'private_title_format', __( 'Private: %s' ), $post );
$title = sprintf( $private_title_format, $title );
}
}

/**
* Filter the post title.
*
* @since 0.71
*
* @param string $title The post title.
* @param int $id The post ID.
*/
return apply_filters( 'the_title', $title, $id );
}