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 | |||
14 | const VERB_GET = 'GET'; |
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15 | const VERB_POST = 'POST'; |
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16 | const VERB_PUT = 'PUT'; |
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17 | const VERB_DELETE = 'DELETE'; |
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18 | const VERB_OPTIONS = 'OPTIONS'; |
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19 | const VERB_HEAD = 'HEAD'; |
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20 | const VERB_PATCH = 'PATCH'; |
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21 | |||
22 | /** |
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23 | * @var array |
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24 | */ |
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25 | protected $server; |
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26 | /** |
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27 | * @var array |
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28 | */ |
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29 | protected $cookies; |
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30 | /** |
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31 | * @var array |
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32 | */ |
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33 | protected $upload; |
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34 | /** |
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35 | * @var array |
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36 | */ |
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37 | protected $header; |
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38 | /** |
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39 | * @var array |
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40 | */ |
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41 | protected $data; |
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42 | /** |
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43 | * @var array |
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44 | */ |
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45 | protected $raw = []; |
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46 | /** |
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47 | * @var array |
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48 | */ |
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49 | protected $query; |
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50 | /** |
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51 | * @var bool |
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52 | */ |
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53 | private $isLoaded = false; |
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54 | |||
55 | 2 | public function init() |
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66 | |||
67 | /** |
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68 | * @return bool |
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69 | */ |
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70 | 1 | public function isLoaded() { |
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73 | |||
74 | /** |
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75 | * Método que devuelve las cabeceras de la petición |
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76 | * @return array |
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77 | */ |
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78 | 2 | private function parseHeaders() |
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82 | |||
83 | /** |
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84 | * Método que verifica si existe una cabecera concreta |
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85 | * @param $header |
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86 | * |
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87 | * @return boolean |
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88 | */ |
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89 | 4 | public function hasHeader($header) |
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93 | |||
94 | |||
95 | /** |
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96 | * Método que indica si una petición tiene cookies |
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97 | * @return boolean |
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98 | */ |
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99 | 1 | public function hasCookies() |
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103 | |||
104 | /** |
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105 | * Método que indica si una petición tiene cookies |
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106 | * @return boolean |
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107 | */ |
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108 | 1 | public function hasUpload() |
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112 | |||
113 | /** |
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114 | * Método que devuelve el TimeStamp de la petición |
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115 | * |
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116 | * @param boolean $formatted |
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117 | * |
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118 | * @return string |
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119 | */ |
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120 | public static function ts($formatted = false) |
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124 | |||
125 | 1 | public function getTs($formatted = false) |
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129 | |||
130 | /** |
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131 | * Método que devuelve el Método HTTP utilizado |
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132 | * @return string |
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133 | */ |
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134 | 4 | public function getMethod() |
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138 | |||
139 | /** |
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140 | * Método que devuelve una cabecera de la petición si existe |
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141 | * @param string $name |
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142 | * @param string $default |
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143 | * |
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144 | * @return string|null |
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145 | */ |
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146 | 3 | public static function header($name, $default = null) |
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150 | |||
151 | /** |
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152 | * @param string $name |
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153 | * @param string $default |
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154 | * @return string|null |
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155 | */ |
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156 | 3 | public function getHeader($name, $default = null) |
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168 | |||
169 | /** |
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170 | * Método que devuelve la url solicitada |
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171 | * @return string|null |
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172 | */ |
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173 | 1 | public static function requestUri() |
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177 | |||
178 | /** |
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179 | * @return string |
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180 | */ |
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181 | 7 | public function getRequestUri() |
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185 | |||
186 | /** |
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187 | * Método que devuelve el idioma de la petición |
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188 | * @return string |
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189 | */ |
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190 | public function getLanguage() |
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194 | |||
195 | /** |
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196 | * Método que determina si se ha solicitado un fichero |
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197 | * @return boolean |
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198 | */ |
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199 | 4 | public function isFile() |
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203 | |||
204 | /** |
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205 | * Get query params |
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206 | * |
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207 | * @param string $queryParams |
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208 | * |
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209 | * @return mixed |
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210 | */ |
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211 | public function getQuery($queryParams) |
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215 | |||
216 | /** |
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217 | * Get all query params |
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218 | * |
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219 | * @return mixed |
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220 | */ |
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221 | 1 | public function getQueryParams() |
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225 | |||
226 | /** |
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227 | * Método que devuelve un parámetro de la solicitud |
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228 | * @param string $param |
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229 | * |
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230 | * @return string|null |
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231 | */ |
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232 | public function get($param) |
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236 | |||
237 | /** |
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238 | * Método que devuelve todos los datos del Request |
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239 | * @return array |
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240 | */ |
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241 | 1 | public function getData() |
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245 | |||
246 | /** |
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247 | * @return array |
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248 | */ |
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249 | public function getRawData() { |
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252 | |||
253 | /** |
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254 | * Método que realiza una redirección a la url dada |
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255 | * @param string $url |
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256 | */ |
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257 | public function redirect($url = null) |
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266 | |||
267 | /** |
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268 | * Devuelve un parámetro de $_SERVER |
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269 | * @param string $param |
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270 | * @param $default |
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271 | * @return string|null |
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272 | */ |
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273 | 5 | public function getServer($param, $default = null) |
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277 | |||
278 | /** |
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279 | * Devuelve el nombre del servidor |
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280 | * @return string|null |
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281 | */ |
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282 | 2 | public function getServerName() |
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286 | |||
287 | /** |
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288 | * Devuelve el protocolo de la conexión |
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289 | * @return string |
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290 | */ |
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291 | 2 | public function getProtocol() |
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295 | |||
296 | /** |
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297 | * Devuelve la url completa de base |
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298 | * @param boolean $protocol |
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299 | * @return string |
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300 | */ |
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301 | 2 | public function getRootUrl($protocol = true) |
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311 | |||
312 | /** |
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313 | * Método que devuelve el valor de una cookie en caso de que exista |
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314 | * @param string $name |
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315 | * |
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316 | * @return string |
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317 | */ |
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318 | 1 | public function getCookie($name) |
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322 | |||
323 | /** |
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324 | * Método que devuelve los files subidos por POST |
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325 | * @param $name |
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326 | * |
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327 | * @return array |
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328 | */ |
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329 | public function getFile($name) |
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333 | |||
334 | /** |
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335 | * Método que devuelve si la petición es ajax o no |
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336 | * @return boolean |
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337 | */ |
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338 | 1 | public function isAjax() |
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343 | |||
344 | } |
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345 |
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: