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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 |
|---|---|
| 1127 | } |
| 1128 | |
| 1129 | /** |
| 1130 | * Filters the wp_dropdown_users() HTML output. |
| 1131 | * |
| 1132 | * @since 2.3.0 |
| 1133 | * |
| 1134 | * @param string $output HTML output generated by wp_dropdown_users(). |
| 1135 | */ |
| 1136 | $html = apply_filters( 'wp_dropdown_users', $output ); |
| 1137 | |
| 1138 | if ( $r['echo'] ) { |
| 1139 | echo $html; |
| 1140 | } |
| 1141 | return $html; |
| 1142 | } |
| 1143 | |
| 1144 | /** |
| 1145 | * Sanitize user field based on context. |