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Member "serendipity/bundled-libs/voku/simple-cache/src/voku/cache/AdapterArray.php" (20 Nov 2022, 2338 Bytes) of package /linux/www/serendipity-2.4.0.zip:

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    1 <?php
    2 
    3 declare(strict_types=1);
    4 
    5 namespace voku\cache;
    6 
    7 /**
    8  * AdapterArray: simple array-cache adapter
    9  */
   10 class AdapterArray implements iAdapter
   11 {
   12     /**
   13      * @var array
   14      */
   15     private static $values = [];
   16 
   17     /**
   18      * @var array<string, array<int>>
   19      */
   20     private static $expired = [];
   21 
   22     /**
   23      * {@inheritdoc}
   24      */
   25     public function exists(string $key): bool
   26     {
   27         $this->removeExpired($key);
   28 
   29         return \array_key_exists($key, self::$values);
   30     }
   31 
   32     /**
   33      * {@inheritdoc}
   34      */
   35     public function get(string $key)
   36     {
   37         return $this->exists($key) ? self::$values[$key] : null;
   38     }
   39 
   40     /**
   41      * {@inheritdoc}
   42      */
   43     public function installed(): bool
   44     {
   45         return true;
   46     }
   47 
   48     /**
   49      * {@inheritdoc}
   50      */
   51     public function remove(string $key): bool
   52     {
   53         $this->removeExpired($key);
   54 
   55         if (\array_key_exists($key, self::$values) === true) {
   56             unset(self::$values[$key]);
   57 
   58             return true;
   59         }
   60 
   61         return false;
   62     }
   63 
   64     /**
   65      * {@inheritdoc}
   66      */
   67     public function removeAll(): bool
   68     {
   69         self::$values = [];
   70         self::$expired = [];
   71 
   72         return true;
   73     }
   74 
   75     /**
   76      * {@inheritdoc}
   77      */
   78     public function set(string $key, $value): bool
   79     {
   80         self::$values[$key] = $value;
   81 
   82         return true;
   83     }
   84 
   85     /**
   86      * {@inheritdoc}
   87      */
   88     public function setExpired(string $key, $value, int $ttl = 0): bool
   89     {
   90         self::$values[$key] = $value;
   91 
   92         if ($ttl !== 0) {
   93             self::$expired[$key] = [\time(), $ttl];
   94         }
   95 
   96         return true;
   97     }
   98 
   99     /**
  100      * Remove expired cache.
  101      *
  102      * @param string $key
  103      *
  104      * @return bool
  105      */
  106     private function removeExpired($key): bool
  107     {
  108         if (
  109             \array_key_exists($key, self::$expired) === false
  110             ||
  111             \array_key_exists($key, self::$values) === false
  112         ) {
  113             return false;
  114         }
  115 
  116         list($time, $ttl) = self::$expired[$key];
  117         \assert(\is_int($time));
  118         \assert(\is_int($ttl));
  119 
  120         if (\time() > ($time + $ttl)) {
  121             unset(self::$values[$key]);
  122         }
  123 
  124         if (!isset(self::$values[$key])) {
  125             unset(self::$expired[$key]);
  126         }
  127 
  128         return true;
  129     }
  130 }