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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 |
|---|---|
| 2523 | * @since 3.7.0 |
| 2524 | * |
| 2525 | * @param array $fields { |
| 2526 | * An array of the attachment metadata keys and labels. |
| 2527 | * |
| 2528 | * @type string 'dataformat' Label to be shown before the field dataformat. |
| 2529 | * @type string 'codec' Label to be shown before the field codec. |
| 2530 | * } |
| 2531 | */ |
| 2532 | $audio_fields = apply_filters( 'audio_submitbox_misc_sections', array( |
| 2533 | 'dataformat' => __( 'Audio Format:' ), |
| 2534 | 'codec' => __( 'Audio Codec:' ) |
| 2535 | ) ); |
| 2536 | |
| 2537 | foreach ( $audio_fields as $key => $label ): |
| 2538 | if ( ! empty( $meta['audio'][$key] ) ) : ?> |
| 2539 | <div class="misc-pub-section misc-pub-audio misc-pub-<?php echo sanitize_html_class( $key ); ?>"> |
| 2540 | <?php echo $label; ?> <strong><?php echo esc_html( $meta['audio'][$key] ); ?></strong> |
| 2541 | </div> |