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The best way to understand what a hook does is to look at where it occurs in the source code.
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.
This hook occurs 2 times in this file.
| Line | Code |
|---|---|
| 1324 | if ( isset( $allowed_themes[ $blog_id ] ) ) { |
| 1325 | /** |
| 1326 | * Filters the array of themes allowed on the site. |
| 1327 | * |
| 1328 | * @since 4.5.0 |
| 1329 | * |
| 1330 | * @param array $allowed_themes An array of theme stylesheet names. |
| 1331 | * @param int $blog_id ID of the site. Defaults to current site. |
| 1332 | */ |
| 1333 | return (array) apply_filters( 'site_allowed_themes', $allowed_themes[ $blog_id ], $blog_id ); |
| 1334 | } |
| 1335 | |
| 1336 | $current = $blog_id == get_current_blog_id(); |
| 1337 | |
| 1338 | if ( $current ) { |
| 1339 | $allowed_themes[ $blog_id ] = get_option( 'allowedthemes' ); |
| 1340 | } else { |
| 1341 | switch_to_blog( $blog_id ); |
| 1342 | $allowed_themes[ $blog_id ] = get_option( 'allowedthemes' ); |
| Line | Code |
| 1374 | switch_to_blog( $blog_id ); |
| 1375 | update_option( 'allowedthemes', $allowed_themes[ $blog_id ] ); |
| 1376 | delete_option( 'allowed_themes' ); |
| 1377 | restore_current_blog(); |
| 1378 | } |
| 1379 | } |
| 1380 | } |
| 1381 | |
| 1382 | /** This filter is documented in wp-includes/class-wp-theme.php */ |
| 1383 | return (array) apply_filters( 'site_allowed_themes', $allowed_themes[ $blog_id ], $blog_id ); |
| 1384 | } |
| 1385 | |
| 1386 | /** |
| 1387 | * Enables a theme for all sites on the current network. |
| 1388 | * |
| 1389 | * @since 4.6.0 |
| 1390 | * @static |
| 1391 | * |
| 1392 | * @param string|array $stylesheets Stylesheet name or array of stylesheet names. |