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do_action( "hook_name" )apply_filters( "hook_name", "what_to_filter" ).Remember, this hook may occur in more than one file. Moreover, the hook's context may change from version to version.
| Line | Code |
|---|---|
| 1320 | * Passing a truthy value to the filter will effectively short-circuit retrieval, |
| 1321 | * returning the passed value instead. |
| 1322 | * |
| 1323 | * @since 2.9.0 |
| 1324 | * |
| 1325 | * @param mixed $pre_site_transient The default value to return if the site transient does not exist. |
| 1326 | * Any value other than false will short-circuit the retrieval |
| 1327 | * of the transient, and return the returned value. |
| 1328 | */ |
| 1329 | $pre = apply_filters( 'pre_site_transient_' . $transient, false ); |
| 1330 | |
| 1331 | if ( false !== $pre ) |
| 1332 | return $pre; |
| 1333 | |
| 1334 | if ( wp_using_ext_object_cache() ) { |
| 1335 | $value = wp_cache_get( $transient, 'site-transient' ); |
| 1336 | } else { |
| 1337 | // Core transients that do not have a timeout. Listed here so querying timeouts can be avoided. |
| 1338 | $no_timeout = array('update_core', 'update_plugins', 'update_themes'); |