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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 |
|---|---|
| 1694 | } |
| 1695 | |
| 1696 | /** |
| 1697 | * Filters the wp_dropdown_users() HTML output. |
| 1698 | * |
| 1699 | * @since 2.3.0 |
| 1700 | * |
| 1701 | * @param string $output HTML output generated by wp_dropdown_users(). |
| 1702 | */ |
| 1703 | $html = apply_filters( 'wp_dropdown_users', $output ); |
| 1704 | |
| 1705 | if ( $parsed_args['echo'] ) { |
| 1706 | echo $html; |
| 1707 | } |
| 1708 | return $html; |
| 1709 | } |
| 1710 | |
| 1711 | /** |
| 1712 | * Sanitizes user field based on context. |