描述:
通过页面的标题获取页面信息
用法:
<?php get_page_by_title( $page_title, $output, $post_type );?>
参数:
$page_title
(string) (必填) 页面标题
默认值: None
$output
(string) (可选) 输出类型. OBJECT, ARRAY_N, or ARRAY_A.
默认值: OBJECT
$post_type
(string) (可选) 自定义文章类型
默认值: page
示例:
<?php
$page = get_page_by_title( 'About' );
wp_list_pages( 'exclude=' . $page->ID );
?>
源文件:
/**
* Retrieve a page given its title.
*
* @since 2.1.0
*
* @global wpdb $wpdb WordPress database abstraction object.
*
* @param string $page_title Page title
* @param string $output Optional. Output type. OBJECT, ARRAY_N, or ARRAY_A.
* Default OBJECT.
* @param string|array $post_type Optional. Post type or array of post types. Default 'page'.
* @return WP_Post|array|void WP_Post on success or null on failure
*/
function get_page_by_title( $page_title, $output = OBJECT, $post_type = 'page' ) {
global $wpdb;
if ( is_array( $post_type ) ) {
$post_type = esc_sql( $post_type );
$post_type_in_string = "'" . implode( "','", $post_type ) . "'";
$sql = $wpdb->prepare( "
SELECT ID
FROM $wpdb->posts
WHERE post_title = %s
AND post_type IN ($post_type_in_string)
", $page_title );
} else {
$sql = $wpdb->prepare( "
SELECT ID
FROM $wpdb->posts
WHERE post_title = %s
AND post_type = %s
", $page_title, $post_type );
}
$page = $wpdb->get_var( $sql );
if ( $page ) {
return get_post( $page, $output );
}
}