Complex classes like SessionFunctions 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 SessionFunctions, and based on these observations, apply Extract Interface, too.
| 1 | <?php namespace Limoncello\Application\Session; |
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| 26 | class SessionFunctions implements SessionFunctionsInterface |
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| 27 | { |
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| 28 | /** |
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| 29 | * @var callable |
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| 30 | */ |
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| 31 | private $retrieveCallable; |
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| 32 | |||
| 33 | /** |
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| 34 | * @var callable |
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| 35 | */ |
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| 36 | private $putCallable; |
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| 37 | |||
| 38 | /** |
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| 39 | * @var callable |
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| 40 | */ |
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| 41 | private $hasCallable; |
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| 42 | |||
| 43 | /** |
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| 44 | * @var callable |
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| 45 | */ |
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| 46 | private $deleteCallable; |
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| 47 | |||
| 48 | /** |
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| 49 | * @var callable |
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| 50 | */ |
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| 51 | private $iteratorCallable; |
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| 52 | |||
| 53 | /** |
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| 54 | * @var callable |
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| 55 | */ |
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| 56 | private $abortCallable; |
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| 57 | |||
| 58 | /** |
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| 59 | * @var callable |
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| 60 | */ |
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| 61 | private $cacheLimiterCallable; |
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| 62 | |||
| 63 | /** |
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| 64 | * @var callable |
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| 65 | */ |
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| 66 | private $createIdCallable; |
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| 67 | |||
| 68 | /** |
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| 69 | * @var callable |
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| 70 | */ |
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| 71 | private $writeCloseCallable; |
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| 72 | |||
| 73 | /** |
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| 74 | * @var callable |
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| 75 | */ |
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| 76 | private $unsetCallable; |
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| 77 | |||
| 78 | /** |
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| 79 | * @var callable |
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| 80 | */ |
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| 81 | private $statusCallable; |
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| 82 | |||
| 83 | /** |
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| 84 | * @var callable |
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| 85 | */ |
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| 86 | private $startCallable; |
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| 87 | |||
| 88 | /** |
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| 89 | * @var callable |
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| 90 | */ |
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| 91 | private $setSaveHandlerCallable; |
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| 92 | |||
| 93 | /** |
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| 94 | * @var callable |
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| 95 | */ |
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| 96 | private $setCookieParamsCallable; |
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| 97 | |||
| 98 | /** |
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| 99 | * @var callable |
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| 100 | */ |
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| 101 | private $savePathCallable; |
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| 102 | |||
| 103 | /** |
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| 104 | * @var callable |
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| 105 | */ |
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| 106 | private $resetCallable; |
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| 107 | |||
| 108 | /** |
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| 109 | * @var callable |
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| 110 | */ |
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| 111 | private $registerShutdownCallable; |
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| 112 | |||
| 113 | /** |
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| 114 | * @var callable |
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| 115 | */ |
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| 116 | private $regenerateIdCallable; |
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| 117 | |||
| 118 | /** |
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| 119 | * @var callable |
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| 120 | */ |
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| 121 | private $nameCallable; |
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| 122 | |||
| 123 | /** |
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| 124 | * @var callable |
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| 125 | */ |
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| 126 | private $moduleNameCallable; |
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| 127 | |||
| 128 | /** |
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| 129 | * @var callable |
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| 130 | */ |
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| 131 | private $decodeCallable; |
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| 132 | |||
| 133 | /** |
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| 134 | * @var callable |
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| 135 | */ |
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| 136 | private $destroyCallable; |
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| 137 | |||
| 138 | /** |
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| 139 | * @var callable |
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| 140 | */ |
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| 141 | private $encodeCallable; |
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| 142 | |||
| 143 | /** |
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| 144 | * @var callable |
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| 145 | */ |
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| 146 | private $gcCallable; |
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| 147 | |||
| 148 | /** |
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| 149 | * @var callable |
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| 150 | */ |
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| 151 | private $getCookieParamsCallable; |
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| 152 | |||
| 153 | /** |
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| 154 | * @var callable |
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| 155 | */ |
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| 156 | private $idCallable; |
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| 157 | /** |
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| 158 | * @var callable |
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| 159 | */ |
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| 160 | private $cacheExpireCallable; |
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| 161 | |||
| 162 | /** |
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| 163 | * Constructor. |
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| 164 | */ |
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| 165 | public function __construct() |
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| 206 | |||
| 207 | /** |
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| 208 | * @inheritdoc |
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| 209 | */ |
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| 210 | public function getRetrieveCallable(): callable |
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| 214 | |||
| 215 | /** |
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| 216 | * @inheritdoc |
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| 217 | */ |
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| 218 | public function setRetrieveCallable(callable $callable): SessionFunctionsInterface |
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| 224 | |||
| 225 | /** |
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| 226 | * @inheritdoc |
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| 227 | */ |
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| 228 | public function getPutCallable(): callable |
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| 232 | |||
| 233 | /** |
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| 234 | * @inheritdoc |
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| 235 | */ |
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| 236 | public function setPutCallable(callable $callable): SessionFunctionsInterface |
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| 242 | |||
| 243 | /** |
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| 244 | * @inheritdoc |
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| 245 | */ |
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| 246 | public function getHasCallable(): callable |
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| 250 | |||
| 251 | /** |
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| 252 | * @inheritdoc |
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| 253 | */ |
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| 254 | public function setHasCallable(callable $callable): SessionFunctionsInterface |
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| 260 | |||
| 261 | /** |
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| 262 | * @inheritdoc |
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| 263 | */ |
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| 264 | public function getDeleteCallable(): callable |
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| 268 | |||
| 269 | /** |
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| 270 | * @inheritdoc |
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| 271 | */ |
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| 272 | public function setDeleteCallable(callable $callable): SessionFunctionsInterface |
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| 278 | |||
| 279 | /** |
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| 280 | * @inheritdoc |
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| 281 | */ |
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| 282 | public function getIteratorCallable(): callable |
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| 286 | |||
| 287 | /** |
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| 288 | * @inheritdoc |
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| 289 | */ |
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| 290 | public function setIteratorCallable(callable $callable): SessionFunctionsInterface |
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| 296 | |||
| 297 | /** |
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| 298 | * @inheritdoc |
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| 299 | */ |
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| 300 | public function getAbortCallable(): callable |
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| 304 | |||
| 305 | /** |
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| 306 | * @inheritdoc |
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| 307 | */ |
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| 308 | public function setAbortCallable(callable $callable): SessionFunctionsInterface |
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| 314 | |||
| 315 | /** |
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| 316 | * @inheritdoc |
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| 317 | */ |
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| 318 | public function getCacheExpireCallable(): callable |
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| 322 | |||
| 323 | /** |
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| 324 | * @inheritdoc |
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| 325 | */ |
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| 326 | public function setCacheExpireCallable(callable $callable): SessionFunctionsInterface |
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| 332 | |||
| 333 | /** |
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| 334 | * @inheritdoc |
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| 335 | */ |
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| 336 | public function getCacheLimiterCallable(): callable |
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| 340 | |||
| 341 | /** |
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| 342 | * @inheritdoc |
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| 343 | */ |
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| 344 | public function setCacheLimiterCallable(callable $callable): SessionFunctionsInterface |
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| 350 | |||
| 351 | /** |
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| 352 | * @inheritdoc |
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| 353 | */ |
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| 354 | public function getCreateIdCallable(): callable |
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| 358 | |||
| 359 | /** |
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| 360 | * @inheritdoc |
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| 361 | */ |
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| 362 | public function setCreateIdCallable(callable $callable): SessionFunctionsInterface |
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| 368 | |||
| 369 | /** |
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| 370 | * @inheritdoc |
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| 371 | */ |
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| 372 | public function getDecodeCallable(): callable |
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| 376 | |||
| 377 | /** |
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| 378 | * @inheritdoc |
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| 379 | */ |
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| 380 | public function setDecodeCallable(callable $callable): SessionFunctionsInterface |
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| 386 | |||
| 387 | /** |
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| 388 | * @inheritdoc |
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| 389 | */ |
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| 390 | public function getDestroyCallable(): callable |
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| 394 | |||
| 395 | /** |
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| 396 | * @inheritdoc |
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| 397 | */ |
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| 398 | public function setDestroyCallable(callable $callable): SessionFunctionsInterface |
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| 404 | |||
| 405 | /** |
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| 406 | * @inheritdoc |
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| 407 | */ |
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| 408 | public function getEncodeCallable(): callable |
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| 412 | |||
| 413 | /** |
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| 414 | * @inheritdoc |
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| 415 | */ |
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| 416 | public function setEncodeCallable(callable $callable): SessionFunctionsInterface |
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| 422 | |||
| 423 | /** |
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| 424 | * @inheritdoc |
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| 425 | */ |
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| 426 | public function getGcCallable(): callable |
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| 430 | |||
| 431 | /** |
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| 432 | * @inheritdoc |
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| 433 | */ |
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| 434 | public function setGcCallable(callable $callable): SessionFunctionsInterface |
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| 440 | |||
| 441 | /** |
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| 442 | * @inheritdoc |
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| 443 | */ |
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| 444 | public function getGetCookieParamsCallable(): callable |
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| 448 | |||
| 449 | /** |
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| 450 | * @inheritdoc |
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| 451 | */ |
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| 452 | public function setGetCookieParamsCallable(callable $callable): SessionFunctionsInterface |
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| 458 | |||
| 459 | /** |
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| 460 | * @inheritdoc |
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| 461 | */ |
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| 462 | public function getIdCallable(): callable |
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| 466 | |||
| 467 | /** |
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| 468 | * @inheritdoc |
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| 469 | */ |
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| 470 | public function setIdCallable(callable $callable): SessionFunctionsInterface |
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| 476 | |||
| 477 | /** |
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| 478 | * @inheritdoc |
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| 479 | */ |
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| 480 | public function getModuleNameCallable(): callable |
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| 484 | |||
| 485 | /** |
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| 486 | * @inheritdoc |
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| 487 | */ |
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| 488 | public function setModuleNameCallable(callable $callable): SessionFunctionsInterface |
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| 494 | |||
| 495 | /** |
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| 496 | * @inheritdoc |
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| 497 | */ |
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| 498 | public function getNameCallable(): callable |
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| 502 | |||
| 503 | /** |
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| 504 | * @inheritdoc |
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| 505 | */ |
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| 506 | public function setNameCallable(callable $callable): SessionFunctionsInterface |
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| 512 | |||
| 513 | /** |
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| 514 | * @inheritdoc |
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| 515 | */ |
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| 516 | public function getRegenerateIdCallable(): callable |
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| 520 | |||
| 521 | /** |
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| 522 | * @inheritdoc |
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| 523 | */ |
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| 524 | public function setRegenerateIdCallable(callable $callable): SessionFunctionsInterface |
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| 530 | |||
| 531 | /** |
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| 532 | * @inheritdoc |
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| 533 | */ |
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| 534 | public function getRegisterShutdownCallable(): callable |
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| 538 | |||
| 539 | /** |
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| 540 | * @inheritdoc |
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| 541 | */ |
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| 542 | public function setRegisterShutdownCallable(callable $callable): SessionFunctionsInterface |
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| 548 | |||
| 549 | /** |
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| 550 | * @inheritdoc |
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| 551 | */ |
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| 552 | public function getResetCallable(): callable |
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| 556 | |||
| 557 | /** |
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| 558 | * @inheritdoc |
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| 559 | */ |
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| 560 | public function setResetCallable(callable $callable): SessionFunctionsInterface |
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| 566 | |||
| 567 | /** |
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| 568 | * @inheritdoc |
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| 569 | */ |
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| 570 | public function getSavePathCallable(): callable |
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| 574 | |||
| 575 | /** |
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| 576 | * @inheritdoc |
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| 577 | */ |
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| 578 | public function setSavePathCallable(callable $callable): SessionFunctionsInterface |
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| 584 | |||
| 585 | /** |
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| 586 | * @inheritdoc |
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| 587 | */ |
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| 588 | public function getSetCookieParamsCallable(): callable |
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| 592 | |||
| 593 | /** |
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| 594 | * @inheritdoc |
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| 595 | */ |
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| 596 | public function setSetCookieParamsCallable(callable $callable): SessionFunctionsInterface |
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| 602 | |||
| 603 | /** |
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| 604 | * @inheritdoc |
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| 605 | */ |
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| 606 | public function getSetSaveHandlerCallable(): callable |
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| 610 | |||
| 611 | /** |
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| 612 | * @inheritdoc |
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| 613 | */ |
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| 614 | public function setSetSaveHandlerCallable(callable $callable): SessionFunctionsInterface |
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| 620 | |||
| 621 | /** |
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| 622 | * @inheritdoc |
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| 623 | */ |
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| 624 | public function getStartCallable(): callable |
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| 628 | |||
| 629 | /** |
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| 630 | * @inheritdoc |
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| 631 | */ |
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| 632 | public function setStartCallable(callable $callable): SessionFunctionsInterface |
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| 638 | |||
| 639 | /** |
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| 640 | * @inheritdoc |
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| 641 | */ |
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| 642 | public function getStatusCallable(): callable |
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| 646 | |||
| 647 | /** |
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| 648 | * @inheritdoc |
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| 649 | */ |
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| 650 | public function setStatusCallable(callable $callable): SessionFunctionsInterface |
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| 656 | |||
| 657 | /** |
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| 658 | * @inheritdoc |
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| 659 | */ |
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| 660 | public function getUnsetCallable(): callable |
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| 664 | |||
| 665 | /** |
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| 666 | * @inheritdoc |
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| 667 | */ |
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| 668 | public function setUnsetCallable(callable $callable): SessionFunctionsInterface |
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| 674 | |||
| 675 | /** |
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| 676 | * @inheritdoc |
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| 677 | */ |
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| 678 | public function getWriteCloseCallable(): callable |
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| 682 | |||
| 683 | /** |
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| 684 | * @inheritdoc |
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| 685 | */ |
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| 686 | public function setWriteCloseCallable(callable $callable): SessionFunctionsInterface |
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| 692 | } |
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| 693 |