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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 |
|---|---|
| 833 | * Filter the path for a specific filesystem method class file. |
| 834 | * |
| 835 | * @since 2.6.0 |
| 836 | * |
| 837 | * @see get_filesystem_method() |
| 838 | * |
| 839 | * @param string $path Path to the specific filesystem method class file. |
| 840 | * @param string $method The filesystem method to use. |
| 841 | */ |
| 842 | $abstraction_file = apply_filters( 'filesystem_method_file', ABSPATH . 'wp-admin/includes/class-wp-filesystem-' . $method . '.php', $method ); |
| 843 | |
| 844 | if ( ! file_exists($abstraction_file) ) |
| 845 | return; |
| 846 | |
| 847 | require_once($abstraction_file); |
| 848 | } |
| 849 | $method = "WP_Filesystem_$method"; |
| 850 | |
| 851 | $wp_filesystem = new $method($args); |