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 | ||
| 24 | class Jqadm | ||
| 25 | { | ||
| 26 | /** | ||
| 27 | * Returns the JS file content | ||
| 28 | * | ||
| 29 | * @param ContainerInterface $container Dependency injection container | ||
| 30 | * @param ServerRequestInterface $request Request object | ||
| 31 | * @param ResponseInterface $response Response object | ||
| 32 | * @param array $args Associative list of route parameters | ||
| 33 | * @return ResponseInterface Modified response object with generated output | ||
| 34 | */ | ||
| 35 | public static function fileAction( ContainerInterface $container, ServerRequestInterface $request, ResponseInterface $response, array $args ) | ||
|  | |||
| 36 | 	{ | ||
| 37 | $contents = ''; | ||
| 38 | $files = array(); | ||
| 39 | $aimeos = $container->get( 'aimeos' ); | ||
| 40 | $type = ( isset( $args['type'] ) ? $args['type'] : 'js' ); | ||
| 41 | |||
| 42 | foreach( $aimeos->getCustomPaths( 'admin/jqadm' ) as $base => $paths ) | ||
| 43 | 		{ | ||
| 44 | foreach( $paths as $path ) | ||
| 45 | 			{ | ||
| 46 | $jsbAbsPath = $base . '/' . $path; | ||
| 47 | $jsb2 = new \Aimeos\MW\Jsb2\Standard( $jsbAbsPath, dirname( $jsbAbsPath ) ); | ||
| 48 | $files = array_merge( $files, $jsb2->getFiles( $type ) ); | ||
| 49 | } | ||
| 50 | } | ||
| 51 | |||
| 52 | foreach( $files as $file ) | ||
| 53 | 		{ | ||
| 54 | 			if( ( $content = file_get_contents( $file ) ) !== false ) { | ||
| 55 | $contents .= $content; | ||
| 56 | } | ||
| 57 | } | ||
| 58 | |||
| 59 | $response->getBody()->write( $contents ); | ||
| 60 | |||
| 61 | 		if( $type === 'js' ) { | ||
| 62 | $response = $response->withHeader( 'Content-Type', 'application/javascript' ); | ||
| 63 | 		} elseif( $type === 'css' ) { | ||
| 64 | $response = $response->withHeader( 'Content-Type', 'text/css' ); | ||
| 65 | } | ||
| 66 | |||
| 67 | return $response; | ||
| 68 | } | ||
| 69 | |||
| 70 | |||
| 71 | /** | ||
| 72 | * Returns the HTML code for a copy of a resource object | ||
| 73 | * | ||
| 74 | * @param ContainerInterface $container Dependency injection container | ||
| 75 | * @param ServerRequestInterface $request Request object | ||
| 76 | * @param ResponseInterface $response Response object | ||
| 77 | * @param array $args Associative list of route parameters | ||
| 78 | * @return ResponseInterface Modified response object with generated output | ||
| 79 | */ | ||
| 80 | View Code Duplication | public static function copyAction( ContainerInterface $container, ServerRequestInterface $request, ResponseInterface $response, array $args ) | |
| 90 | |||
| 91 | |||
| 92 | /** | ||
| 93 | * Returns the HTML code for a new resource object | ||
| 94 | * | ||
| 95 | * @param ContainerInterface $container Dependency injection container | ||
| 96 | * @param ServerRequestInterface $request Request object | ||
| 97 | * @param ResponseInterface $response Response object | ||
| 98 | * @param array $args Associative list of route parameters | ||
| 99 | * @return ResponseInterface Modified response object with generated output | ||
| 100 | */ | ||
| 101 | View Code Duplication | public static function createAction( ContainerInterface $container, ServerRequestInterface $request, ResponseInterface $response, array $args ) | |
| 111 | |||
| 112 | |||
| 113 | /** | ||
| 114 | * Deletes the resource object or a list of resource objects | ||
| 115 | * | ||
| 116 | * @param ContainerInterface $container Dependency injection container | ||
| 117 | * @param ServerRequestInterface $request Request object | ||
| 118 | * @param ResponseInterface $response Response object | ||
| 119 | * @param array $args Associative list of route parameters | ||
| 120 | * @return ResponseInterface Modified response object with generated output | ||
| 121 | */ | ||
| 122 | View Code Duplication | public static function deleteAction( ContainerInterface $container, ServerRequestInterface $request, ResponseInterface $response, array $args ) | |
| 132 | |||
| 133 | |||
| 134 | /** | ||
| 135 | * Exports the requested resource object | ||
| 136 | * | ||
| 137 | * @param ContainerInterface $container Dependency injection container | ||
| 138 | * @param ServerRequestInterface $request Request object | ||
| 139 | * @param ResponseInterface $response Response object | ||
| 140 | * @param array $args Associative list of route parameters | ||
| 141 | * @return ResponseInterface Modified response object with generated output | ||
| 142 | */ | ||
| 143 | View Code Duplication | public static function exportAction( ContainerInterface $container, ServerRequestInterface $request, ResponseInterface $response, array $args ) | |
| 153 | |||
| 154 | |||
| 155 | /** | ||
| 156 | * Returns the HTML code for the requested resource object | ||
| 157 | * | ||
| 158 | * @param ContainerInterface $container Dependency injection container | ||
| 159 | * @param ServerRequestInterface $request Request object | ||
| 160 | * @param ResponseInterface $response Response object | ||
| 161 | * @param array $args Associative list of route parameters | ||
| 162 | * @return ResponseInterface Modified response object with generated output | ||
| 163 | */ | ||
| 164 | View Code Duplication | public static function getAction( ContainerInterface $container, ServerRequestInterface $request, ResponseInterface $response, array $args ) | |
| 174 | |||
| 175 | |||
| 176 | /** | ||
| 177 | * Saves a new resource object | ||
| 178 | * | ||
| 179 | * @param ContainerInterface $container Dependency injection container | ||
| 180 | * @param ServerRequestInterface $request Request object | ||
| 181 | * @param ResponseInterface $response Response object | ||
| 182 | * @param array $args Associative list of route parameters | ||
| 183 | * @return ResponseInterface Modified response object with generated output | ||
| 184 | */ | ||
| 185 | View Code Duplication | public static function saveAction( ContainerInterface $container, ServerRequestInterface $request, ResponseInterface $response, array $args ) | |
| 195 | |||
| 196 | |||
| 197 | /** | ||
| 198 | * Returns the HTML code for a list of resource objects | ||
| 199 | * | ||
| 200 | * @param ContainerInterface $container Dependency injection container | ||
| 201 | * @param ServerRequestInterface $request Request object | ||
| 202 | * @param ResponseInterface $response Response object | ||
| 203 | * @param array $args Associative list of route parameters | ||
| 204 | * @return ResponseInterface Modified response object with generated output | ||
| 205 | */ | ||
| 206 | View Code Duplication | public static function searchAction( ContainerInterface $container, ServerRequestInterface $request, ResponseInterface $response, array $args ) | |
| 216 | |||
| 217 | |||
| 218 | /** | ||
| 219 | * Returns the resource controller | ||
| 220 | * | ||
| 221 | * @param ContainerInterface $container Dependency injection container | ||
| 222 | * @param ServerRequestInterface $request Request object | ||
| 223 | * @param ResponseInterface $response Response object | ||
| 224 | * @param array $args Associative list of route parameters | ||
| 225 | * @return \Aimeos\Admin\JQAdm\Iface JQAdm client | ||
| 226 | */ | ||
| 227 | protected static function createClient( ContainerInterface $container, ServerRequestInterface $request, ResponseInterface $response, array $args ) | ||
| 251 | |||
| 252 | |||
| 253 | /** | ||
| 254 | * Returns the generated HTML code | ||
| 255 | * | ||
| 256 | * @param ContainerInterface $container Dependency injection container | ||
| 257 | * @param ResponseInterface $response Response object | ||
| 258 | * @param string $content Content from admin client | ||
| 259 | * @return ResponseInterface Modified response object with generated output | ||
| 260 | */ | ||
| 261 | protected static function getHtml( ContainerInterface $container, ResponseInterface $response, $content ) | ||
| 265 | } | ||
| 266 | 
This check looks from parameters that have been defined for a function or method, but which are not used in the method body.