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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 |
---|---|
2899 | * Filters the audio and video metadata fields to be shown in the publish meta box. |
2900 | * |
2901 | * The key for each item in the array should correspond to an attachment |
2902 | * metadata key, and the value should be the desired label. |
2903 | * |
2904 | * @since 3.7.0 |
2905 | * |
2906 | * @param array $fields An array of the attachment metadata keys and labels. |
2907 | */ |
2908 | $fields = apply_filters( 'media_submitbox_misc_sections', array( |
2909 | 'length_formatted' => __( 'Length:' ), |
2910 | 'bitrate' => __( 'Bitrate:' ), |
2911 | ) ); |
2912 |
|
2913 | foreach ( $fields as $key => $label ) { |
2914 | if ( empty( $meta[ $key ] ) ) { |
2915 | continue; |
2916 | } |
2917 | ?> |