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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 |
|---|---|
| 7721 | */ |
| 7722 | function wp_delete_file( $file ) { |
| 7723 | /** |
| 7724 | * Filters the path of the file to delete. |
| 7725 | * |
| 7726 | * @since 2.1.0 |
| 7727 | * |
| 7728 | * @param string $file Path to the file to delete. |
| 7729 | */ |
| 7730 | $delete = apply_filters( 'wp_delete_file', $file ); |
| 7731 | |
| 7732 | if ( ! empty( $delete ) ) { |
| 7733 | return @unlink( $delete ); |
| 7734 | } |
| 7735 | |
| 7736 | return false; |
| 7737 | } |
| 7738 | |
| 7739 | /** |