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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.
| Line | Code |
|---|---|
| 245 | $upgrader = new Theme_Upgrader( new Theme_Installer_Skin( compact('type', 'title', 'nonce', 'url') ) ); |
| 246 | $result = $upgrader->install( $file_upload->package ); |
| 247 | |
| 248 | if ( $result || is_wp_error($result) ) |
| 249 | $file_upload->cleanup(); |
| 250 | |
| 251 | include(ABSPATH . 'wp-admin/admin-footer.php'); |
| 252 | |
| 253 | } else { |
| 254 | do_action('update-custom_' . $action); |
| 255 | } |
| 256 | } |
| 257 | |