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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 |
|---|---|
| 1036 | $user = get_userdata( $selected ); |
| 1037 | $_selected = selected( $user->ID, $selected, false ); |
| 1038 | $display = !empty($user->$show) ? $user->$show : '('. $user->user_login . ')'; |
| 1039 | $output .= "\t<option value='$user->ID'$_selected>" . esc_html($display) . "</option>\n"; |
| 1040 | } |
| 1041 | |
| 1042 | $output .= "</select>"; |
| 1043 | } |
| 1044 | |
| 1045 | $output = apply_filters('wp_dropdown_users', $output); |
| 1046 | |
| 1047 | if ( $echo ) |
| 1048 | echo $output; |
| 1049 | |
| 1050 | return $output; |
| 1051 | } |
| 1052 | |
| 1053 | /** |
| 1054 | * Sanitize user field based on context. |