Duplicate code is one of the most pungent code smells. A rule that is often used is to re-structure code once it is duplicated in three or more places.
Common duplication problems, and corresponding solutions are:
| 1 | <?php  | 
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| 15 | class Jetpack_Admin_Menu extends Admin_Menu { | 
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| 16 | |||
| 17 | /**  | 
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| 18 | * Jetpack_Admin_Menu constructor.  | 
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| 19 | */  | 
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| 20 | 	public function __construct() { | 
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| 26 | |||
| 27 | /**  | 
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| 28 | * Dequeues unnecessary scripts.  | 
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| 29 | */  | 
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| 30 | 	public function dequeue_scripts() { | 
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| 33 | |||
| 34 | /**  | 
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| 35 | * Determines whether the current locale is right-to-left (RTL).  | 
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| 36 | *  | 
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| 37 | * Performs the check against the current locale set on the WordPress.com's account settings.  | 
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| 38 | * See `Masterbar::__construct` in `modules/masterbar/masterbar/class-masterbar.php`.  | 
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| 39 | */  | 
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| 40 | 	public function is_rtl() { | 
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| 43 | |||
| 44 | /**  | 
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| 45 | * Create the desired menu output.  | 
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| 46 | */  | 
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| 47 | 	public function reregister_menu_items() { | 
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| 64 | |||
| 65 | /**  | 
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| 66 | * Whether to use wp-admin pages rather than Calypso.  | 
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| 67 | *  | 
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| 68 | * @return bool  | 
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| 69 | */  | 
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| 70 | 	public function should_link_to_wp_admin() { | 
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| 74 | |||
| 75 | /**  | 
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| 76 | * Adds Posts menu.  | 
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| 77 | *  | 
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| 78 | * @param bool $wp_admin Optional. Whether links should point to Calypso or wp-admin. Default false (Calypso).  | 
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| 79 | */  | 
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| 80 | 	public function add_posts_menu( $wp_admin = false ) { // phpcs:ignore VariableAnalysis.CodeAnalysis.VariableAnalysis.UnusedVariable | 
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| 84 | |||
| 85 | /**  | 
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| 86 | * Adds Media menu.  | 
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| 87 | *  | 
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| 88 | * @param bool $wp_admin Optional. Whether links should point to Calypso or wp-admin. Default false (Calypso).  | 
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| 89 | */  | 
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| 90 | 	public function add_media_menu( $wp_admin = false ) { // phpcs:ignore VariableAnalysis.CodeAnalysis.VariableAnalysis.UnusedVariable | 
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| 93 | |||
| 94 | /**  | 
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| 95 | * Adds Page menu.  | 
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| 96 | *  | 
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| 97 | * @param bool $wp_admin Optional. Whether links should point to Calypso or wp-admin. Default false (Calypso).  | 
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| 98 | */  | 
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| 99 | 	public function add_page_menu( $wp_admin = false ) { // phpcs:ignore VariableAnalysis.CodeAnalysis.VariableAnalysis.UnusedVariable | 
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| 103 | |||
| 104 | /**  | 
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| 105 | * Adds a custom post type menu.  | 
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| 106 | *  | 
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| 107 | * @param string $post_type Custom post type.  | 
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| 108 | * @param bool $wp_admin Optional. Whether links should point to Calypso or wp-admin. Default false (Calypso).  | 
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| 109 | */  | 
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| 110 | 	public function add_custom_post_type_menu( $post_type, $wp_admin = false ) { // phpcs:ignore VariableAnalysis.CodeAnalysis.VariableAnalysis.UnusedVariable | 
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| 131 | |||
| 132 | /**  | 
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| 133 | * Adds Comments menu.  | 
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| 134 | *  | 
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| 135 | * @param bool $wp_admin Optional. Whether links should point to Calypso or wp-admin. Default false (Calypso).  | 
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| 136 | */  | 
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| 137 | 	public function add_comments_menu( $wp_admin = false ) { // phpcs:ignore VariableAnalysis.CodeAnalysis.VariableAnalysis.UnusedVariable | 
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| 140 | |||
| 141 | /**  | 
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| 142 | * Adds Feedback menu.  | 
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| 143 | */  | 
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| 144 | 	public function add_feedback_menu() { | 
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| 160 | |||
| 161 | /**  | 
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| 162 | * Adds Jetpack menu.  | 
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| 163 | */  | 
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| 164 | 	public function add_jetpack_menu() { | 
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| 178 | |||
| 179 | /**  | 
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| 180 | * Adds Appearance menu.  | 
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| 181 | *  | 
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| 182 | * @param bool $wp_admin_themes Optional. Whether Themes link should point to Calypso or wp-admin. Default false (Calypso).  | 
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| 183 | * @param bool $wp_admin_customize Optional. Whether Customize link should point to Calypso or wp-admin. Default false (Calypso).  | 
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| 184 | */  | 
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| 185 | 	public function add_appearance_menu( $wp_admin_themes = false, $wp_admin_customize = false ) { // phpcs:ignore VariableAnalysis.CodeAnalysis.VariableAnalysis.UnusedVariable | 
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| 191 | |||
| 192 | /**  | 
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| 193 | * Adds Plugins menu.  | 
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| 194 | *  | 
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| 195 | * @param bool $wp_admin Optional. Whether links should point to Calypso or wp-admin. Default false (Calypso).  | 
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| 196 | */  | 
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| 197 | 	public function add_plugins_menu( $wp_admin = false ) { // phpcs:ignore VariableAnalysis.CodeAnalysis.VariableAnalysis.UnusedVariable | 
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| 200 | |||
| 201 | /**  | 
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| 202 | * Adds Users menu.  | 
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| 203 | *  | 
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| 204 | * @param bool $wp_admin Optional. Whether links should point to Calypso or wp-admin. Default false (Calypso).  | 
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| 205 | */  | 
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| 206 | View Code Duplication | 	public function add_users_menu( $wp_admin = false ) { // phpcs:ignore VariableAnalysis.CodeAnalysis.VariableAnalysis.UnusedVariable | 
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| 213 | |||
| 214 | /**  | 
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| 215 | * Adds Tools menu.  | 
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| 216 | *  | 
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| 217 | * @param bool $wp_admin_import Optional. Whether Import link should point to Calypso or wp-admin. Default false (Calypso).  | 
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| 218 | * @param bool $wp_admin_export Optional. Whether Export link should point to Calypso or wp-admin. Default false (Calypso).  | 
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| 219 | */  | 
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| 220 | 	public function add_tools_menu( $wp_admin_import = false, $wp_admin_export = false ) { // phpcs:ignore VariableAnalysis.CodeAnalysis.VariableAnalysis.UnusedVariable | 
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| 233 | |||
| 234 | /**  | 
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| 235 | * Adds Settings menu.  | 
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| 236 | *  | 
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| 237 | * @param bool $wp_admin Optional. Whether links should point to Calypso or wp-admin. Default false (Calypso).  | 
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| 238 | */  | 
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| 239 | 	public function add_options_menu( $wp_admin = false ) { // phpcs:ignore VariableAnalysis.CodeAnalysis.VariableAnalysis.UnusedVariable | 
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| 242 | |||
| 243 | /**  | 
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| 244 | * Adds WP Admin menu.  | 
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| 245 | */  | 
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| 246 | 	public function add_wp_admin_menu() { | 
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| 257 | }  | 
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| 258 |