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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 |
|---|---|
| 1346 | if ( isset( $allowed_themes[ $blog_id ] ) ) { |
| 1347 | /** |
| 1348 | * Filters the array of themes allowed on the site. |
| 1349 | * |
| 1350 | * @since 4.5.0 |
| 1351 | * |
| 1352 | * @param array $allowed_themes An array of theme stylesheet names. |
| 1353 | * @param int $blog_id ID of the site. Defaults to current site. |
| 1354 | */ |
| 1355 | return (array) apply_filters( 'site_allowed_themes', $allowed_themes[ $blog_id ], $blog_id ); |
| 1356 | } |
| 1357 | |
| 1358 | $current = $blog_id == get_current_blog_id(); |
| 1359 | |
| 1360 | if ( $current ) { |
| 1361 | $allowed_themes[ $blog_id ] = get_option( 'allowedthemes' ); |
| 1362 | } else { |
| 1363 | switch_to_blog( $blog_id ); |
| 1364 | $allowed_themes[ $blog_id ] = get_option( 'allowedthemes' ); |
| Line | Code |
| 1396 | switch_to_blog( $blog_id ); |
| 1397 | update_option( 'allowedthemes', $allowed_themes[ $blog_id ] ); |
| 1398 | delete_option( 'allowed_themes' ); |
| 1399 | restore_current_blog(); |
| 1400 | } |
| 1401 | } |
| 1402 | } |
| 1403 | |
| 1404 | /** This filter is documented in wp-includes/class-wp-theme.php */ |
| 1405 | return (array) apply_filters( 'site_allowed_themes', $allowed_themes[ $blog_id ], $blog_id ); |
| 1406 | } |
| 1407 | |
| 1408 | /** |
| 1409 | * Enables a theme for all sites on the current network. |
| 1410 | * |
| 1411 | * @since 4.6.0 |
| 1412 | * @access public |
| 1413 | * @static |
| 1414 | * |