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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 |
|---|---|
| 983 | $t['value'] = join(', ', $values); |
| 984 | |
| 985 | $form_fields[$taxonomy] = $t; |
| 986 | } |
| 987 | |
| 988 | // Merge default fields with their errors, so any key passed with the error (e.g. 'error', 'helps', 'value') will replace the default |
| 989 | // The recursive merge is easily traversed with array casting: foreach( (array) $things as $thing ) |
| 990 | $form_fields = array_merge_recursive($form_fields, (array) $errors); |
| 991 | |
| 992 | $form_fields = apply_filters('attachment_fields_to_edit', $form_fields, $post); |
| 993 | |
| 994 | return $form_fields; |
| 995 | } |
| 996 | |
| 997 | /** |
| 998 | * Retrieve HTML for media items of post gallery. |
| 999 | * |
| 1000 | * The HTML markup retrieved will be created for the progress of SWF Upload |
| 1001 | * component. Will also create link for showing and hiding the form to modify |