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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 |
---|---|
801 |
|
802 | require_once(ABSPATH . 'wp-admin/includes/class-wp-filesystem-base.php'); |
803 |
|
804 | $method = get_filesystem_method($args, $context); |
805 |
|
806 | if ( ! $method ) |
807 | return false; |
808 |
|
809 | if ( ! class_exists("WP_Filesystem_$method") ) { |
810 | $abstraction_file = apply_filters('filesystem_method_file', ABSPATH . 'wp-admin/includes/class-wp-filesystem-' . $method . '.php', $method); |
811 | if ( ! file_exists($abstraction_file) ) |
812 | return; |
813 |
|
814 | require_once($abstraction_file); |
815 | } |
816 | $method = "WP_Filesystem_$method"; |
817 |
|
818 | $wp_filesystem = new $method($args); |
819 |
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