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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 |
|---|---|
| 1652 | if ( isset( $allowed_themes[ $blog_id ] ) ) { |
| 1653 | /** |
| 1654 | * Filters the array of themes allowed on the site. |
| 1655 | * |
| 1656 | * @since 4.5.0 |
| 1657 | * |
| 1658 | * @param string[] $allowed_themes An array of theme stylesheet names. |
| 1659 | * @param int $blog_id ID of the site. Defaults to current site. |
| 1660 | */ |
| 1661 | return (array) apply_filters( 'site_allowed_themes', $allowed_themes[ $blog_id ], $blog_id ); |
| 1662 | } |
| 1663 | |
| 1664 | $current = get_current_blog_id() == $blog_id; |
| 1665 | |
| 1666 | if ( $current ) { |
| 1667 | $allowed_themes[ $blog_id ] = get_option( 'allowedthemes' ); |
| 1668 | } else { |
| 1669 | switch_to_blog( $blog_id ); |
| 1670 | $allowed_themes[ $blog_id ] = get_option( 'allowedthemes' ); |
| Line | Code |
| 1705 | switch_to_blog( $blog_id ); |
| 1706 | update_option( 'allowedthemes', $allowed_themes[ $blog_id ] ); |
| 1707 | delete_option( 'allowed_themes' ); |
| 1708 | restore_current_blog(); |
| 1709 | } |
| 1710 | } |
| 1711 | } |
| 1712 | |
| 1713 | /** This filter is documented in wp-includes/class-wp-theme.php */ |
| 1714 | return (array) apply_filters( 'site_allowed_themes', $allowed_themes[ $blog_id ], $blog_id ); |
| 1715 | } |
| 1716 | |
| 1717 | /** |
| 1718 | * Enables a theme for all sites on the current network. |
| 1719 | * |
| 1720 | * @since 4.6.0 |
| 1721 | * |
| 1722 | * @param string|string[] $stylesheets Stylesheet name or array of stylesheet names. |
| 1723 | */ |