Complex classes like Request often do a lot of different things. To break such a class down, we need to identify a cohesive component within that class. A common approach to find such a component is to look for fields/methods that share the same prefixes, or suffixes. You can also have a look at the cohesion graph to spot any un-connected, or weakly-connected components.
Once you have determined the fields that belong together, you can apply the Extract Class refactoring. If the component makes sense as a sub-class, Extract Subclass is also a candidate, and is often faster.
While breaking up the class, it is a good idea to analyze how other classes use Request, and based on these observations, apply Extract Interface, too.
| 1 | <?php  | 
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| 10 | class Request  | 
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| 11 | { | 
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| 12 | use SingletonTrait;  | 
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| 13 | protected $server;  | 
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| 14 | protected $cookies;  | 
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| 15 | protected $upload;  | 
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| 16 | protected $header;  | 
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| 17 | protected $data;  | 
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| 18 | protected $raw = [];  | 
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| 19 | protected $query;  | 
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| 20 | private $isLoaded = false;  | 
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| 21 | 2 | ||
| 22 | public function init()  | 
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| 33 | 2 | ||
| 34 | /**  | 
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| 35 | * @return bool  | 
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| 36 | 2 | */  | 
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| 37 | 2 |     public function isLoaded() { | 
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| 40 | |||
| 41 | /**  | 
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| 42 | 1 | * Método que devuelve las cabeceras de la petición  | 
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| 43 | 1 | * @return array  | 
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| 44 | */  | 
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| 45 | private function parseHeaders()  | 
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| 49 | |||
| 50 | 2 | /**  | 
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| 51 | * Método que verifica si existe una cabecera concreta  | 
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| 52 | 2 | * @param $header  | 
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| 53 | *  | 
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| 54 | * @return boolean  | 
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| 55 | */  | 
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| 56 | public function hasHeader($header)  | 
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| 60 | |||
| 61 | 3 | ||
| 62 | /**  | 
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| 63 | 3 | * Método que indica si una petición tiene cookies  | 
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| 64 | * @return boolean  | 
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| 65 | */  | 
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| 66 | public function hasCookies()  | 
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| 70 | |||
| 71 | 1 | /**  | 
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| 72 | * Método que indica si una petición tiene cookies  | 
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| 73 | 1 | * @return boolean  | 
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| 74 | */  | 
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| 75 | public function hasUpload()  | 
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| 79 | |||
| 80 | 1 | /**  | 
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| 81 | * Método que devuelve el TimeStamp de la petición  | 
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| 82 | 1 | *  | 
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| 83 | * @param boolean $formatted  | 
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| 84 | *  | 
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| 85 | * @return string  | 
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| 86 | */  | 
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| 87 | public static function ts($formatted = false)  | 
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| 91 | |||
| 92 | public function getTs($formatted = false)  | 
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| 96 | |||
| 97 | 1 | /**  | 
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| 98 | * Método que devuelve el Método HTTP utilizado  | 
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| 99 | 1 | * @return string  | 
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| 100 | */  | 
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| 101 | public function getMethod()  | 
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| 105 | |||
| 106 | 4 | /**  | 
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| 107 | * Método que devuelve una cabecera de la petición si existe  | 
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| 108 | 4 | * @param string $name  | 
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| 109 | * @param string $default  | 
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| 110 | *  | 
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| 111 | * @return string|null  | 
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| 112 | */  | 
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| 113 | public static function header($name, $default = null)  | 
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| 117 | |||
| 118 | /**  | 
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| 119 | * @param string $name  | 
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| 120 | * @param string $default  | 
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| 121 | * @return string|null  | 
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| 122 | 2 | */  | 
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| 123 | public function getHeader($name, $default = null)  | 
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| 131 | |||
| 132 | /**  | 
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| 133 | * Método que devuelve la url solicitada  | 
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| 134 | * @return string|null  | 
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| 135 | 1 | */  | 
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| 136 | public static function requestUri()  | 
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| 140 | |||
| 141 | /**  | 
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| 142 | * @return string  | 
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| 143 | 8 | */  | 
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| 144 | public function getRequestUri()  | 
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| 148 | |||
| 149 | /**  | 
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| 150 | * Método que devuelve el idioma de la petición  | 
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| 151 | * @return string  | 
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| 152 | */  | 
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| 153 | public function getLanguage()  | 
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| 157 | |||
| 158 | /**  | 
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| 159 | * Método que determina si se ha solicitado un fichero  | 
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| 160 | * @return boolean  | 
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| 161 | 4 | */  | 
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| 162 | public function isFile()  | 
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| 167 | |||
| 168 | /**  | 
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| 169 | * Get query params  | 
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| 170 | *  | 
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| 171 | * @param string $queryParams  | 
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| 172 | *  | 
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| 173 | * @return mixed  | 
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| 174 | */  | 
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| 175 | public function getQuery($queryParams)  | 
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| 179 | |||
| 180 | /**  | 
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| 181 | * Get all query params  | 
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| 182 | *  | 
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| 183 | * @return mixed  | 
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| 184 | 2 | */  | 
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| 185 | public function getQueryParams()  | 
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| 189 | |||
| 190 | /**  | 
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| 191 | * Método que devuelve un parámetro de la solicitud  | 
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| 192 | * @param string $param  | 
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| 193 | *  | 
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| 194 | * @return string|null  | 
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| 195 | */  | 
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| 196 | public function get($param)  | 
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| 200 | |||
| 201 | /**  | 
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| 202 | * Método que devuelve todos los datos del Request  | 
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| 203 | * @return array  | 
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| 204 | 1 | */  | 
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| 205 | public function getData()  | 
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| 209 | |||
| 210 | /**  | 
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| 211 | * @return array  | 
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| 212 | */  | 
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| 213 |     public function getRawData() { | 
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| 216 | |||
| 217 | /**  | 
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| 218 | * Método que realiza una redirección a la url dada  | 
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| 219 | * @param string $url  | 
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| 220 | */  | 
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| 221 | public function redirect($url = null)  | 
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| 230 | |||
| 231 | 3 | /**  | 
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| 232 | * Devuelve un parámetro de $_SERVER  | 
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| 233 | * @param string $param  | 
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| 234 | *  | 
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| 235 | * @return string|null  | 
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| 236 | */  | 
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| 237 | public function getServer($param)  | 
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| 241 | |||
| 242 | /**  | 
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| 243 | * Devuelve el nombre del servidor  | 
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| 244 | * @return string|null  | 
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| 245 | */  | 
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| 246 | public function getServerName()  | 
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| 250 | |||
| 251 | /**  | 
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| 252 | * Devuelve el protocolo de la conexión  | 
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| 253 | * @return string  | 
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| 254 | */  | 
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| 255 | public function getProtocol()  | 
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| 259 | |||
| 260 | /**  | 
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| 261 | * Devuelve la url completa de base  | 
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| 262 | * @param boolean $protocol  | 
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| 263 | * @return string  | 
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| 264 | */  | 
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| 265 | public function getRootUrl($protocol = true)  | 
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| 276 | |||
| 277 | 1 | /**  | 
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| 278 | * Método que devuelve el valor de una cookie en caso de que exista  | 
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| 279 | * @param string $name  | 
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| 280 | *  | 
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| 281 | * @return string  | 
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| 282 | */  | 
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| 283 | public function getCookie($name)  | 
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| 287 | |||
| 288 | /**  | 
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| 289 | * Método que devuelve los files subidos por POST  | 
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| 290 | * @param $name  | 
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| 291 | *  | 
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| 292 | * @return array  | 
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| 293 | */  | 
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| 294 | public function getFile($name)  | 
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| 298 | 1 | ||
| 299 | /**  | 
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| 300 | * Método que devuelve si la petición es ajax o no  | 
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| 301 | * @return boolean  | 
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| 302 | */  | 
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| 303 | public function isAjax()  | 
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| 308 | |||
| 309 | }  | 
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| 310 | 
Instead of super-globals, we recommend to explicitly inject the dependencies of your class. This makes your code less dependent on global state and it becomes generally more testable: