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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 |
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34 | $args = wp_parse_args( $args, $defaults ); |
35 |
|
36 | /** |
37 | * Fires at the beginning of an export, before any headers are sent. |
38 | * |
39 | * @since 2.3.0 |
40 | * |
41 | * @param array $args An array of export arguments. |
42 | */ |
43 | do_action( 'export_wp', $args ); |
44 |
|
45 | $sitename = sanitize_key( get_bloginfo( 'name' ) ); |
46 | if ( ! empty( $sitename ) ) { |
47 | $sitename .= '.'; |
48 | } |
49 | $date = date( 'Y-m-d' ); |
50 | $wp_filename = $sitename . 'wordpress.' . $date . '.xml'; |
51 | /** |
52 | * Filter the export filename. |