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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 |
|---|---|
| 2479 | * @param array $fields { |
| 2480 | * An array of the attachment metadata keys and labels. |
| 2481 | * |
| 2482 | * @type string 'mime_type' Label to be shown before the field mime_type. |
| 2483 | * @type string 'year' Label to be shown before the field year. |
| 2484 | * @type string 'genre' Label to be shown before the field genre. |
| 2485 | * @type string 'length_formatted' Label to be shown before the field length_formatted. |
| 2486 | * } |
| 2487 | */ |
| 2488 | $fields = apply_filters( 'media_submitbox_misc_sections', array( |
| 2489 | 'mime_type' => __( 'Mime-type:' ), |
| 2490 | 'year' => __( 'Year:' ), |
| 2491 | 'genre' => __( 'Genre:' ), |
| 2492 | 'length_formatted' => __( 'Length:' ), |
| 2493 | ) ); |
| 2494 | |
| 2495 | foreach ( $fields as $key => $label ): |
| 2496 | if ( ! empty( $meta[$key] ) ) : ?> |
| 2497 | <div class="misc-pub-section misc-pub-mime-meta misc-pub-<?php echo sanitize_html_class( $key ); ?>"> |