Complex classes like SetCookie 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 SetCookie, and based on these observations, apply Extract Interface, too.
1 | <?php |
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23 | 31 | class SetCookie |
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24 | { |
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25 | 19 | /** @var string */ |
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26 | private $name; |
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27 | 19 | /** @var string|null */ |
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28 | private $value; |
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29 | /** @var int */ |
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30 | 3 | private $expires = 0; |
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31 | /** @var int */ |
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32 | 3 | private $maxAge = 0; |
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33 | /** @var string|null */ |
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34 | private $path; |
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35 | 2 | /** @var string|null */ |
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36 | private $domain; |
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37 | 2 | /** @var bool */ |
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38 | private $secure = false; |
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39 | /** @var bool */ |
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40 | private $httpOnly = false; |
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41 | /** @var SameSite|null */ |
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42 | private $sameSite; |
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43 | |||
44 | private function __construct(string $name, ?string $value = null) |
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49 | |||
50 | public function getName() : string |
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54 | |||
55 | public function getValue() : ?string |
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59 | |||
60 | public function getExpires() : int |
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64 | |||
65 | 29 | public function getMaxAge() : int |
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69 | 29 | ||
70 | public function getPath() : ?string |
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74 | 13 | ||
75 | public function getDomain() : ?string |
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79 | |||
80 | 13 | public function getSecure() : bool |
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84 | 11 | ||
85 | public function getHttpOnly() : bool |
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89 | |||
90 | public function getSameSite() : ?SameSite |
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94 | |||
95 | 13 | public function withValue(?string $value = null) : self |
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103 | |||
104 | 1 | /** @param int|\DateTimeInterface|string|null $expires */ |
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105 | private function resolveExpires($expires = null) : int |
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127 | 12 | ||
128 | /** @param int|string|\DateTimeInterface|null $expires */ |
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129 | public function withExpires($expires = null) : self |
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139 | 10 | ||
140 | public function rememberForever() : self |
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144 | |||
145 | 10 | public function expire() : self |
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149 | |||
150 | 12 | public function withMaxAge(?int $maxAge = null) : self |
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158 | |||
159 | public function withPath(?string $path = null) : self |
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167 | 17 | ||
168 | 17 | public function withDomain(?string $domain = null) : self |
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176 | |||
177 | public function withSecure(bool $secure = true) : self |
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185 | 1 | ||
186 | public function withHttpOnly(bool $httpOnly = true) : self |
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194 | |||
195 | 29 | public function withSameSite(SameSite $sameSite) : self |
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203 | |||
204 | 12 | public function withoutSameSite() : self |
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212 | 11 | ||
213 | 12 | public function __toString() : string |
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229 | |||
230 | 12 | public static function create(string $name, ?string $value = null) : self |
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234 | 17 | ||
235 | public static function createRememberedForever(string $name, ?string $value = null) : self |
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239 | |||
240 | 17 | public static function createExpired(string $name) : self |
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244 | |||
245 | 17 | public static function fromSetCookieString(string $string) : self |
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302 | |||
303 | /** |
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304 | * @param string[] $cookieStringParts |
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305 | * |
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306 | * @return string[] |
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307 | */ |
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308 | private function appendFormattedDomainPartIfSet(array $cookieStringParts) : array |
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316 | |||
317 | /** |
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318 | * @param string[] $cookieStringParts |
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319 | * |
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320 | * @return string[] |
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321 | */ |
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322 | private function appendFormattedPathPartIfSet(array $cookieStringParts) : array |
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330 | |||
331 | /** |
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332 | * @param string[] $cookieStringParts |
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333 | * |
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334 | * @return string[] |
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335 | */ |
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336 | private function appendFormattedExpiresPartIfSet(array $cookieStringParts) : array |
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344 | |||
345 | /** |
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346 | * @param string[] $cookieStringParts |
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347 | * |
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348 | * @return string[] |
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349 | */ |
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350 | private function appendFormattedMaxAgePartIfSet(array $cookieStringParts) : array |
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358 | |||
359 | /** |
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360 | * @param string[] $cookieStringParts |
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361 | * |
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362 | * @return string[] |
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363 | */ |
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364 | private function appendFormattedSecurePartIfSet(array $cookieStringParts) : array |
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372 | |||
373 | /** |
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374 | * @param string[] $cookieStringParts |
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375 | * |
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376 | * @return string[] |
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377 | */ |
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378 | private function appendFormattedHttpOnlyPartIfSet(array $cookieStringParts) : array |
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386 | |||
387 | /** |
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388 | * @param string[] $cookieStringParts |
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389 | * |
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390 | * @return string[] |
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391 | */ |
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392 | private function appendFormattedSameSitePartIfSet(array $cookieStringParts) : array |
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402 | } |
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403 |
In PHP, under loose comparison (like
==
, or!=
, orswitch
conditions), values of different types might be equal.For
string
values, the empty string''
is a special case, in particular the following results might be unexpected: