WP hooks navigation: Home/browse • Actions index • Filters index
To save our bandwidth, we show only a snippet of code around each occurence of the hook. View complete file in SVN (without highlighting).
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 |
|---|---|
| 46 | * |
| 47 | * @param int $attachment_id Attachment ID |
| 48 | * @param string $file File path for the attachment |
| 49 | * @return bool False on failure, true on success. |
| 50 | */ |
| 51 | function update_attached_file( $attachment_id, $file ) { |
| 52 | if ( !get_post( $attachment_id ) ) |
| 53 | return false; |
| 54 | |
| 55 | $file = apply_filters( 'update_attached_file', $file, $attachment_id ); |
| 56 | |
| 57 | // Make the file path relative to the upload dir |
| 58 | if ( ($uploads = wp_upload_dir()) && false === $uploads['error'] ) { // Get upload directory |
| 59 | if ( 0 === strpos($file, $uploads['basedir']) ) {// Check that the upload base exists in the file path |
| 60 | $file = str_replace($uploads['basedir'], '', $file); // Remove upload dir from the file path |
| 61 | $file = ltrim($file, '/'); |
| 62 | } |
| 63 | } |
| 64 | |