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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 |
|---|---|
| 1836 | } |
| 1837 | |
| 1838 | /** |
| 1839 | * Filters the wp_dropdown_users() HTML output. |
| 1840 | * |
| 1841 | * @since 2.3.0 |
| 1842 | * |
| 1843 | * @param string $output HTML output generated by wp_dropdown_users(). |
| 1844 | */ |
| 1845 | $html = apply_filters( 'wp_dropdown_users', $output ); |
| 1846 | |
| 1847 | if ( $parsed_args['echo'] ) { |
| 1848 | echo $html; |
| 1849 | } |
| 1850 | return $html; |
| 1851 | } |
| 1852 | |
| 1853 | /** |
| 1854 | * Sanitizes user field based on context. |