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有时候会发现wordperss后台越来越卡，是什么原因呢？原因可能很多，但是一些更新的获取可能是其中之一。那么可以按需关系这些更新。

将以下代码加入主题的functions.php里（最后一个 ?> 之前）：

1. class OS_Disable_WordPress_Updates {
   
2. private $__pluginsFiles;
   
3. private $__themeFiles;
   
4. 
   
5. /**
   
6. * The OS_Disable_WordPress_Updates class constructor
   
7. * initializing required stuff for the plugin
   
8. *
   
9. * PHP 5 Constructor
   
10. *
    
11. * @since 1.3
    
12. * @author scripts@schloebe.de
    
13. */
    
14. function __construct() {
    
15. $this->__pluginsFiles = array();
    
16. $this->__themeFiles = array();
    
17. 
    
18. add_action( 'admin_init', array(&$this, 'admin_init') );
    
19. 
    
20. if( !function_exists( 'get_plugins' ) ) require_once ABSPATH . 'wp-admin/includes/plugin.php';
    
21. 
    
22. if( count( get_plugins() ) > 0 ) foreach( get_plugins() as $file => $pl ) $this->__pluginsFiles[$file] = $pl['Version'];
    
23. if( count( wp_get_themes() ) > 0 ) foreach( wp_get_themes() as $theme ) $this->__themeFiles[$theme->get_stylesheet()] = $theme->get('Version');
    
24. 
    
25. /*
    
26. * Disable Theme Updates
    
27. * 2.8 to 3.0
    
28. */
    
29. add_filter( 'pre_transient_update_themes', array($this, 'last_checked_themes') );
    
30. /*
    
31. * 3.0
    
32. */
    
33. add_filter( 'pre_site_transient_update_themes', array($this, 'last_checked_themes') );
    
34. 
    
35. 
    
36. /*
    
37. * Disable Plugin Updates
    
38. * 2.8 to 3.0
    
39. */
    
40. add_action( 'pre_transient_update_plugins', array(&$this, 'last_checked_plugins') );
    
41. /*
    
42. * 3.0
    
43. */
    
44. add_filter( 'pre_site_transient_update_plugins', array($this, 'last_checked_plugins') );
    
45. 
    
46. 
    
47. /*
    
48. * Disable Core Updates
    
49. * 2.8 to 3.0
    
50. */
    
51. add_filter( 'pre_transient_update_core', array($this, 'last_checked_core') );
    
52. /*
    
53. * 3.0
    
54. */
    
55. add_filter( 'pre_site_transient_update_core', array($this, 'last_checked_core') );
    
56. 
    
57. 
    
58. /*
    
59. * Disable All Automatic Updates
    
60. * 3.7+
    
61. *
    
62. * @author sLa NGjI's @ slangji.wordpress.com
    
63. */
    
64. add_filter( 'auto_update_translation', '__return_false' );
    
65. add_filter( 'automatic_updater_disabled', '__return_true' );
    
66. add_filter( 'allow_minor_auto_core_updates', '__return_false' );
    
67. add_filter( 'allow_major_auto_core_updates', '__return_false' );
    
68. add_filter( 'allow_dev_auto_core_updates', '__return_false' );
    
69. add_filter( 'auto_update_core', '__return_false' );
    
70. add_filter( 'wp_auto_update_core', '__return_false' );
    
71. add_filter( 'auto_core_update_send_email', '__return_false' );
    
72. add_filter( 'send_core_update_notification_email', '__return_false' );
    
73. add_filter( 'auto_update_plugin', '__return_false' );
    
74. add_filter( 'auto_update_theme', '__return_false' );
    
75. add_filter( 'automatic_updates_send_debug_email', '__return_false' );
    
76. add_filter( 'automatic_updates_is_vcs_checkout', '__return_true' );
    
77. 
    
78. 
    
79. add_filter( 'automatic_updates_send_debug_email ', '__return_false', 1 );
    
80. if( !defined( 'AUTOMATIC_UPDATER_DISABLED' ) ) define( 'AUTOMATIC_UPDATER_DISABLED', true );
    
81. if( !defined( 'WP_AUTO_UPDATE_CORE') ) define( 'WP_AUTO_UPDATE_CORE', false );
    
82. 
    
83. add_filter( 'pre_http_request', array($this, 'block_request'), 10, 3 );
    
84. }
    
85. 
    
86. 
    
87. /**
    
88. * The OS_Disable_WordPress_Updates class constructor
    
89. * initializing required stuff for the plugin
    
90. *
    
91. * PHP 4 Compatible Constructor
    
92. *
    
93. * @since 1.3
    
94. * @author scripts@schloebe.de
    
95. */
    
96. function OS_Disable_WordPress_Updates() {
    
97. $this->__construct();
    
98. }
    
99. 
    
100. 
     
101. /**
     
102. * Initialize and load the plugin stuff
     
103. *
     
104. * @since 1.3
     
105. * @author scripts@schloebe.de
     
106. */
     
107. function admin_init() {
     
108. if ( !function_exists("remove_action") ) return;
     
109. 
     
110. 
     
111. /*
     
112. * Hide maintenance and update nag
     
113. */
     
114. remove_action( 'admin_notices', 'update_nag', 3 );
     
115. remove_action( 'network_admin_notices', 'update_nag', 3 );
     
116. remove_action( 'admin_notices', 'maintenance_nag' );
     
117. remove_action( 'network_admin_notices', 'maintenance_nag' );
     
118. 
     
119. 
     
120. /*
     
121. * Disable Theme Updates
     
122. * 2.8 to 3.0
     
123. */
     
124. remove_action( 'load-themes.php', 'wp_update_themes' );
     
125. remove_action( 'load-update.php', 'wp_update_themes' );
     
126. remove_action( 'admin_init', '_maybe_update_themes' );
     
127. remove_action( 'wp_update_themes', 'wp_update_themes' );
     
128. wp_clear_scheduled_hook( 'wp_update_themes' );
     
129. 
     
130. 
     
131. /*
     
132. * 3.0
     
133. */
     
134. remove_action( 'load-update-core.php', 'wp_update_themes' );
     
135. wp_clear_scheduled_hook( 'wp_update_themes' );
     
136. 
     
137. 
     
138. /*
     
139. * Disable Plugin Updates
     
140. * 2.8 to 3.0
     
141. */
     
142. remove_action( 'load-plugins.php', 'wp_update_plugins' );
     
143. remove_action( 'load-update.php', 'wp_update_plugins' );
     
144. remove_action( 'admin_init', '_maybe_update_plugins' );
     
145. remove_action( 'wp_update_plugins', 'wp_update_plugins' );
     
146. wp_clear_scheduled_hook( 'wp_update_plugins' );
     
147. 
     
148. /*
     
149. * 3.0
     
150. */
     
151. remove_action( 'load-update-core.php', 'wp_update_plugins' );
     
152. wp_clear_scheduled_hook( 'wp_update_plugins' );
     
153. 
     
154. 
     
155. /*
     
156. * Disable Core Updates
     
157. * 2.8 to 3.0
     
158. */
     
159. add_action( 'init', create_function( '', 'remove_action( \'init\', \'wp_version_check\' );' ), 2 );
     
160. add_filter( 'pre_option_update_core', '__return_null' );
     
161. 
     
162. remove_action( 'wp_version_check', 'wp_version_check' );
     
163. remove_action( 'admin_init', '_maybe_update_core' );
     
164. wp_clear_scheduled_hook( 'wp_version_check' );
     
165. 
     
166. 
     
167. /*
     
168. * 3.0
     
169. */
     
170. wp_clear_scheduled_hook( 'wp_version_check' );
     
171. 
     
172. 
     
173. /*
     
174. * 3.7+
     
175. */
     
176. remove_action( 'wp_maybe_auto_update', 'wp_maybe_auto_update' );
     
177. remove_action( 'admin_init', 'wp_maybe_auto_update' );
     
178. remove_action( 'admin_init', 'wp_auto_update_core' );
     
179. wp_clear_scheduled_hook( 'wp_maybe_auto_update' );
     
180. }
     
181. 
     
182. 
     
183. /**
     
184. * Check the outgoing request
     
185. *
     
186. * @since 1.4.4
     
187. */
     
188. public function block_request($pre, $args, $url) {
     
189. /* Empty url */
     
190. if( empty( $url ) ) {
     
191. return $pre;
     
192. }
     
193. 
     
194. /* Invalid host */
     
195. if( !$host = parse_url($url, PHP_URL_HOST) ) {
     
196. return $pre;
     
197. }
     
198. 
     
199. $url_data = parse_url( $url );
     
200. 
     
201. /* block request */
     
202. if( false !== stripos( $host, 'api.wordpress.org' ) && (false !== stripos( $url_data['path'], 'update-check' ) || false !== stripos( $url_data['path'], 'browse-happy' )) ) {
     
203. return true;
     
204. }
     
205. 
     
206. return $pre;
     
207. }
     
208. 
     
209. 
     
210. /**
     
211. * Override core version check info
     
212. *
     
213. * @since 1.4.3
     
214. */
     
215. public function last_checked_core() {
     
216. global $wp_version;
     
217. 
     
218. return (object) array(
     
219. 'last_checked' => time(),
     
220. 'updates' => array(),
     
221. 'version_checked' => $wp_version
     
222. );
     
223. }
     
224. 
     
225. /**
     
226. * Override themes version check info
     
227. *
     
228. * @since 1.4.3
     
229. */
     
230. public function last_checked_themes() {
     
231. global $wp_version;
     
232. 
     
233. return (object) array(
     
234. 'last_checked' => time(),
     
235. 'updates' => array(),
     
236. 'version_checked' => $wp_version,
     
237. 'checked' => $this->__themeFiles
     
238. );
     
239. }
     
240. 
     
241. /**
     
242. * Override plugins version check info
     
243. *
     
244. * @since 1.4.3
     
245. */
     
246. public function last_checked_plugins() {
     
247. global $wp_version;
     
248. 
     
249. return (object) array(
     
250. 'last_checked' => time(),
     
251. 'updates' => array(),
     
252. 'version_checked' => $wp_version,
     
253. 'checked' => $this->__pluginsFiles
     
254. );
     
255. }
     
256. }
     
257. 
     
258. if ( class_exists('OS_Disable_WordPress_Updates') ) {
     
259. $OS_Disable_WordPress_Updates = new OS_Disable_WordPress_Updates();
     
260. }

复制代码

以上代码是一个插件里的代码，插件名称好像是 disabled wordpress updates 。但是，我们能不用插件就尽量不用插件！

漂来荡去

呵呵。。。

小三

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