php - WordPress:注意:主页上的 WP_Post 类对象无法转换为 int

Question

我正在开发一个自定义登录页面插件，该插件按预期工作。但是，当我导航到主页时，出现错误

Notice: Object of class WP_Post could not be converted to int in C:\MAMP\htdocs\wp-includes\general-template.php on line 1018

注释掉部分代码后，我发现 foreach 循环导致了问题。需要一个解决方案。

// Set shortcode Tag
$login_shortcode = 'custom_login_form';


// Retrieve Login Page ID
$page_id = ! empty( $page_id ) ? $page_id : '';
$pages_args = array(
    'post_type' => 'page'
);
$pages = get_pages( $pages_args );
foreach ( $pages as $page ) {
    if ( ( $page->post_title == 'Login' && strpos( $page->post_content, $login_shortcode ) ) && $page->post_status == 'publish' ) {
        $page_id = $page->ID;
    }
}

Answer 1

经过我的实验，我发现只要对变量 $page 使用另一个名称，错误通知就消失了:

我不使用 $page ，而是使用 $page_list

$pages_args = array( 'post_type' => 'page' ); $page_list = get_pages( $pages_args ); // <a href="https://stackoverflow.com/questions/49141011/wordpress-notice-object-of-class-wp-post-could-not-be-converted-to-int-on-home" rel="noreferrer noopener nofollow">Wordpress: Notice: Object of class WP_Post could not be converted to int on homepage</a> foreach ( $page_list as $individual_page ) { if ( ( $individual_page->post_title == 'Login' && strpos( $individual_page->post_content, $login_shortcode ) ) && $individual_page->post_status == 'publish' ) { $page_id = $individual_page->ID; } }