[box type="warning" align="" class="" width=""]WordPress 4.9.1 及以上版本已经默认修复该问题，建议直接更新到最新版本，无需再看本文下面的内容了！[/box]
WordPress 4.9 有一个重要更新是：在WP后台编辑主题和插件文件时，支持按层级显示所有文件。为了性能考虑，使用了transient 缓存机制。但是却没有提供任何手动清除缓存的功能，导致有些用户升级到 WordPress 4.9 以后，发现“页面属性 - 模板”这个功能不能正常使用了，不显示主题自带的模板文件！
要解决这个问题，我们可以添加下面的代码到当前主题的 functions.php 就可以了：
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 | /** * Plugin name: WP Trac #42573: Fix for theme template file caching. * Description: Flush the theme file cache each time the admin screens are loaded which uses the file list. * Plugin URI: https://core.trac.wordpress.org/ticket/42573 * Author: Weston Ruter, XWP. * Author URI: https://weston.ruter.net */ function wp_42573_fix_template_caching( WP_Screen $current_screen ) { // Only flush the file cache with each request to post list table, edit post screen, or theme editor. if ( ! in_array( $current_screen->base, array( 'post', 'edit', 'theme-editor' ), true ) ) { return; } $theme = wp_get_theme(); if ( ! $theme ) { return; } $cache_hash = md5( $theme->get_theme_root() . '/' . $theme->get_stylesheet() ); $label = sanitize_key( 'files_' . $cache_hash . '-' . $theme->get( 'Version' ) ); $transient_key = substr( $label, 0, 29 ) . md5( $label ); delete_transient( $transient_key ); } add_action( 'current_screen', 'wp_42573_fix_template_caching' ); |
/** * Plugin name: WP Trac #42573: Fix for theme template file caching. * Description: Flush the theme file cache each time the admin screens are loaded which uses the file list. * Plugin URI: https://core.trac.wordpress.org/ticket/42573 * Author: Weston Ruter, XWP. * Author URI: https://weston.ruter.net */ function wp_42573_fix_template_caching( WP_Screen $current_screen ) { // Only flush the file cache with each request to post list table, edit post screen, or theme editor. if ( ! in_array( $current_screen->base, array( 'post', 'edit', 'theme-editor' ), true ) ) { return; } $theme = wp_get_theme(); if ( ! $theme ) { return; } $cache_hash = md5( $theme->get_theme_root() . '/' . $theme->get_stylesheet() ); $label = sanitize_key( 'files_' . $cache_hash . '-' . $theme->get( 'Version' ) ); $transient_key = substr( $label, 0, 29 ) . md5( $label ); delete_transient( $transient_key ); } add_action( 'current_screen', 'wp_42573_fix_template_caching' );
如果你不想编辑代码，点击下载此插件安装启用即可：wp-42573
到此这篇关于如何解决 WordPress 4.9 页面模板功能无法正常如何使用就介绍到这了。这社会你改变不了就得适应，适应不了就得被淘汰！这叫适者生存！更多相关如何解决 WordPress 4.9 页面模板功能无法正常如何使用内容请查看相关栏目，小编编辑不易，再次感谢大家的支持！
