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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 |
---|---|
2753 | } |
2754 |
|
2755 | // Figure out what filter to run: |
2756 | $type = 'file'; |
2757 | if ( ( $ext = preg_replace( '/^.+?\.([^.]+)$/', '$1', $src ) ) && ( $ext_type = wp_ext2type( $ext ) ) |
2758 | && ( 'audio' == $ext_type || 'video' == $ext_type ) ) |
2759 | $type = $ext_type; |
2760 |
|
2761 | /** This filter is documented in wp-admin/includes/media.php */ |
2762 | $html = apply_filters( "{$type}_send_to_editor_url", $html, $src, $link_text ); |
2763 |
|
2764 | wp_send_json_success( $html ); |
2765 | } |
2766 |
|
2767 | /** |
2768 | * Ajax handler for the Heartbeat API. |
2769 | * |
2770 | * Runs when the user is logged in. |
2771 | * |