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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 |
|---|---|
| 7537 | */ |
| 7538 | function wp_delete_file( $file ) { |
| 7539 | /** |
| 7540 | * Filters the path of the file to delete. |
| 7541 | * |
| 7542 | * @since 2.1.0 |
| 7543 | * |
| 7544 | * @param string $file Path to the file to delete. |
| 7545 | */ |
| 7546 | $delete = apply_filters( 'wp_delete_file', $file ); |
| 7547 | if ( ! empty( $delete ) ) { |
| 7548 | @unlink( $delete ); |
| 7549 | } |
| 7550 | } |
| 7551 | |
| 7552 | /** |
| 7553 | * Deletes a file if its path is within the given directory. |
| 7554 | * |
| 7555 | * @since 4.9.7 |