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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 |
|---|---|
| 855 | * Filter the path for a specific filesystem method class file. |
| 856 | * |
| 857 | * @since 2.6.0 |
| 858 | * |
| 859 | * @see get_filesystem_method() |
| 860 | * |
| 861 | * @param string $path Path to the specific filesystem method class file. |
| 862 | * @param string $method The filesystem method to use. |
| 863 | */ |
| 864 | $abstraction_file = apply_filters( 'filesystem_method_file', ABSPATH . 'wp-admin/includes/class-wp-filesystem-' . $method . '.php', $method ); |
| 865 | |
| 866 | if ( ! file_exists($abstraction_file) ) |
| 867 | return; |
| 868 | |
| 869 | require_once($abstraction_file); |
| 870 | } |
| 871 | $method = "WP_Filesystem_$method"; |
| 872 | |
| 873 | $wp_filesystem = new $method($args); |