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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 |
|---|---|
| 228 | foreach ( $users as $user ) { |
| 229 | $user->ID = (int) $user->ID; |
| 230 | $_selected = $user->ID == $selected ? " selected='selected'" : ''; |
| 231 | $output .= "\t<option value='$user->ID'$_selected>" . wp_specialchars($user->$show) . "</option>\n"; |
| 232 | } |
| 233 | |
| 234 | $output .= "</select>"; |
| 235 | } |
| 236 | |
| 237 | $output = apply_filters('wp_dropdown_users', $output); |
| 238 | |
| 239 | if ( $echo ) |
| 240 | echo $output; |
| 241 | |
| 242 | return $output; |
| 243 | } |
| 244 | |
| 245 | ?> |
| 246 | |