| 1 |  |  | <?php | 
            
                                                                                                            
                            
            
                                    
            
            
                | 2 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 3 |  |  | namespace Webdcg\Redis\Traits; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 4 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 5 |  |  | trait Sets | 
            
                                                                                                            
                            
            
                                    
            
            
                | 6 |  |  | { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 7 |  |  |     /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 8 |  |  |      * Adds a value to the set value stored at key. If this value is already | 
            
                                                                                                            
                            
            
                                    
            
            
                | 9 |  |  |      * in the set, FALSE is returned. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 10 |  |  |      * See: https://redis.io/commands/sadd. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 11 |  |  |      * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 12 |  |  |      * @param  string $key | 
            
                                                                                                            
                            
            
                                    
            
            
                | 13 |  |  |      * @param  splat $members | 
            
                                                                                                            
                            
            
                                    
            
            
                | 14 |  |  |      * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 15 |  |  |      * @return int              The number of elements added to the set. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 16 |  |  |      */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 17 |  |  |     public function sAdd(string $key, ...$members): int | 
            
                                                                                                            
                            
            
                                    
            
            
                | 18 |  |  |     { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 19 |  |  |         if (is_array($members[0])) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 20 |  |  |             return $this->redis->sAdd($key, ...$members[0]); | 
                            
                    |  |  |  | 
                                                                                        
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                | 21 |  |  |         } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 22 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 23 |  |  |         return $this->redis->sAdd($key, ...$members); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 24 |  |  |     } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 25 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 26 |  |  |     /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 27 |  |  |      * Returns the cardinality of the set identified by key. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 28 |  |  |      * See: https://redis.io/commands/scard. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 29 |  |  |      * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 30 |  |  |      * @param  string $key | 
            
                                                                                                            
                            
            
                                    
            
            
                | 31 |  |  |      * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 32 |  |  |      * @return int          the cardinality of the set identified by key, | 
            
                                                                                                            
                            
            
                                    
            
            
                | 33 |  |  |      *                      0 if the set doesn't exist. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 34 |  |  |      */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 35 |  |  |     public function sCard(string $key): int | 
            
                                                                                                            
                            
            
                                    
            
            
                | 36 |  |  |     { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 37 |  |  |         return $this->redis->sCard($key); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 38 |  |  |     } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 39 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 40 |  |  |     /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 41 |  |  |      * Returns the cardinality of the set identified by key. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 42 |  |  |      * See: https://redis.io/commands/scard. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 43 |  |  |      * Note: sSize is an alias for sCard and will be removed in future | 
            
                                                                                                            
                            
            
                                    
            
            
                | 44 |  |  |      * versions of phpredis. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 45 |  |  |      * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 46 |  |  |      * @param  string $key | 
            
                                                                                                            
                            
            
                                    
            
            
                | 47 |  |  |      * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 48 |  |  |      * @return int          the cardinality of the set identified by key, | 
            
                                                                                                            
                            
            
                                    
            
            
                | 49 |  |  |      *                      0 if the set doesn't exist. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 50 |  |  |      */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 51 |  |  |     public function sSize(string $key): int | 
            
                                                                                                            
                            
            
                                    
            
            
                | 52 |  |  |     { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 53 |  |  |         return $this->redis->sCard($key); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 54 |  |  |     } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 55 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 56 |  |  |     /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 57 |  |  |      * Performs the difference between N sets and returns it. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 58 |  |  |      * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 59 |  |  |      * @param  splat $keys | 
            
                                                                                                            
                            
            
                                    
            
            
                | 60 |  |  |      * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 61 |  |  |      * @return array | 
            
                                                                                                            
                            
            
                                    
            
            
                | 62 |  |  |      */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 63 |  |  |     public function sDiff(...$keys): array | 
            
                                                                                                            
                            
            
                                    
            
            
                | 64 |  |  |     { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 65 |  |  |         return $this->redis->sDiff(...$keys); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 66 |  |  |     } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 67 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 68 |  |  |     /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 69 |  |  |      * Performs the same action as sDiff, but stores the result in the first key. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 70 |  |  |      * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 71 |  |  |      * @param  string $destinationKey The key to store the diff into. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 72 |  |  |      * @param  splat $keys            key1, key2, ... , keyN: Any number of keys | 
            
                                                                                                            
                            
            
                                    
            
            
                | 73 |  |  |      *                                corresponding to sets in redis. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 74 |  |  |      * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 75 |  |  |      * @return The cardinality of the resulting set, or FALSE in case of a | 
            
                                                                                                            
                            
            
                                    
            
            
                | 76 |  |  |      * missing key. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 77 |  |  |      */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 78 |  |  |     public function sDiffStore(string $destinationKey, ...$keys): int | 
            
                                                                                                            
                            
            
                                    
            
            
                | 79 |  |  |     { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 80 |  |  |         return $this->redis->sDiffStore($destinationKey, ...$keys); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 81 |  |  |     } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 82 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 83 |  |  |     /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 84 |  |  |      * Returns the members of a set resulting from the intersection of all the | 
            
                                                                                                            
                            
            
                                    
            
            
                | 85 |  |  |      * sets held at the specified keys. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 86 |  |  |      * If just a single key is specified, then this command produces the members | 
            
                                                                                                            
                            
            
                                    
            
            
                | 87 |  |  |      * of this set. If one of the keys is missing, FALSE is returned. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 88 |  |  |      * See: https://redis.io/commands/sinter. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 89 |  |  |      * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 90 |  |  |      * @param  splat $keys  key1, key2, keyN: keys identifying the different | 
            
                                                                                                            
                            
            
                                    
            
            
                | 91 |  |  |      *                      sets on which we will apply the intersection. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 92 |  |  |      * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 93 |  |  |      * @return array        Contain the result of the intersection between | 
            
                                                                                                            
                            
            
                                    
            
            
                | 94 |  |  |      *                      those keys. If the intersection between the | 
            
                                                                                                            
                            
            
                                    
            
            
                | 95 |  |  |      *                      different sets is empty, the return value will be | 
            
                                                                                                            
                            
            
                                    
            
            
                | 96 |  |  |      *                      empty array. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 97 |  |  |      */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 98 |  |  |     public function sInter(...$keys): array | 
            
                                                                                                            
                            
            
                                    
            
            
                | 99 |  |  |     { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 100 |  |  |         return $this->redis->sInter(...$keys); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 101 |  |  |     } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 102 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 103 |  |  |     /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 104 |  |  |      * Performs a sInter command and stores the result in a new set. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 105 |  |  |      * See: https://redis.io/commands/sinterstore. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 106 |  |  |      * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 107 |  |  |      * @param  string $destinationKey   The key to store the diff into. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 108 |  |  |      * @param  plat $keys               key1, key2... keyN. key1..keyN are | 
            
                                                                                                            
                            
            
                                    
            
            
                | 109 |  |  |      *                                  intersected as in sInter. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 110 |  |  |      * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 111 |  |  |      * @return int                      The cardinality of the resulting set, | 
            
                                                                                                            
                            
            
                                    
            
            
                | 112 |  |  |      *                                  or FALSE in case of a missing key. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 113 |  |  |      */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 114 |  |  |     public function sInterStore(string $destinationKey, ...$keys): int | 
            
                                                                                                            
                            
            
                                    
            
            
                | 115 |  |  |     { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 116 |  |  |         return $this->redis->sInterStore($destinationKey, ...$keys); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 117 |  |  |     } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 118 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 119 |  |  |     /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 120 |  |  |      * Checks if member is a member of the set stored at the key key. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 121 |  |  |      * See: https://redis.io/commands/sismember. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 122 |  |  |      * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 123 |  |  |      * @param  string $key | 
            
                                                                                                            
                            
            
                                    
            
            
                | 124 |  |  |      * @param  mixed $member | 
            
                                                                                                            
                            
            
                                    
            
            
                | 125 |  |  |      * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 126 |  |  |      * @return bool             TRUE if value is a member of the set at key key, | 
            
                                                                                                            
                            
            
                                    
            
            
                | 127 |  |  |      *                          FALSE otherwise. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 128 |  |  |      */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 129 |  |  |     public function sIsMember(string $key, $member): bool | 
            
                                                                                                            
                            
            
                                    
            
            
                | 130 |  |  |     { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 131 |  |  |         return $this->redis->sIsMember($key, $member); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 132 |  |  |     } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 133 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 134 |  |  |     /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 135 |  |  |      * Checks if member is a member of the set stored at the key key. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 136 |  |  |      * Note: sContains is an alias for sIsMember and will be removed in future | 
            
                                                                                                            
                            
            
                                    
            
            
                | 137 |  |  |      * versions of phpredis. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 138 |  |  |      * See: https://redis.io/commands/sismember. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 139 |  |  |      * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 140 |  |  |      * @param  string $key | 
            
                                                                                                            
                            
            
                                    
            
            
                | 141 |  |  |      * @param  mixed $member | 
            
                                                                                                            
                            
            
                                    
            
            
                | 142 |  |  |      * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 143 |  |  |      * @return bool             TRUE if value is a member of the set at key key, | 
            
                                                                                                            
                            
            
                                    
            
            
                | 144 |  |  |      *                          FALSE otherwise. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 145 |  |  |      */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 146 |  |  |     public function sContains(string $key, $member): bool | 
            
                                                                                                            
                            
            
                                    
            
            
                | 147 |  |  |     { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 148 |  |  |         return $this->redis->sIsMember($key, $member); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 149 |  |  |     } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 150 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 151 |  |  |     /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 152 |  |  |      * Returns the contents of a set. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 153 |  |  |      * The order is random and corresponds to redis' own internal representation | 
            
                                                                                                            
                            
            
                                    
            
            
                | 154 |  |  |      * of the set structure. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 155 |  |  |      * See: https://redis.io/commands/smembers. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 156 |  |  |      * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 157 |  |  |      * @param  string $key | 
            
                                                                                                            
                            
            
                                    
            
            
                | 158 |  |  |      * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 159 |  |  |      * @return array        An array of elements, the contents of the set. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 160 |  |  |      */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 161 |  |  |     public function sMembers(string $key): array | 
            
                                                                                                            
                            
            
                                    
            
            
                | 162 |  |  |     { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 163 |  |  |         return $this->redis->sMembers($key); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 164 |  |  |     } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 165 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 166 |  |  |     /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 167 |  |  |      * Returns the contents of a set. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 168 |  |  |      * The order is random and corresponds to redis' own internal representation | 
            
                                                                                                            
                            
            
                                    
            
            
                | 169 |  |  |      * of the set structure. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 170 |  |  |      * Note: sGetMembers is an alias for sMembers and will be removed in future | 
            
                                                                                                            
                            
            
                                    
            
            
                | 171 |  |  |      * versions of phpredis. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 172 |  |  |      * See: https://redis.io/commands/smembers. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 173 |  |  |      * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 174 |  |  |      * @param  string $key | 
            
                                                                                                            
                            
            
                                    
            
            
                | 175 |  |  |      * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 176 |  |  |      * @return array        An array of elements, the contents of the set. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 177 |  |  |      */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 178 |  |  |     public function sGetMembers(string $key): array | 
            
                                                                                                            
                            
            
                                    
            
            
                | 179 |  |  |     { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 180 |  |  |         return $this->redis->sMembers($key); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 181 |  |  |     } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 182 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 183 |  |  |     /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 184 |  |  |      * Moves the specified member from the set at sourceKey to the set at | 
            
                                                                                                            
                            
            
                                    
            
            
                | 185 |  |  |      * destinationKey. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 186 |  |  |      * See: https://redis.io/commands/smove. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 187 |  |  |      * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 188 |  |  |      * @param  string $sourceKey | 
            
                                                                                                            
                            
            
                                    
            
            
                | 189 |  |  |      * @param  string $destinationKey | 
            
                                                                                                            
                            
            
                                    
            
            
                | 190 |  |  |      * @param  mixed $member | 
            
                                                                                                            
                            
            
                                    
            
            
                | 191 |  |  |      * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 192 |  |  |      * @return bool                 If the operation is successful, return TRUE. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 193 |  |  |      *                              If the sourceKey and/or destinationKey didn't | 
            
                                                                                                            
                            
            
                                    
            
            
                | 194 |  |  |      *                              exist, and/or the member didn't exist in sourceKey, | 
            
                                                                                                            
                            
            
                                    
            
            
                | 195 |  |  |      *                              FALSE is returned. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 196 |  |  |      */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 197 |  |  |     public function sMove(string $sourceKey, string $destinationKey, $member): bool | 
            
                                                                                                            
                            
            
                                    
            
            
                | 198 |  |  |     { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 199 |  |  |         return $this->redis->sMove($sourceKey, $destinationKey, $member); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 200 |  |  |     } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 201 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 202 |  |  |     /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 203 |  |  |      * Removes and returns a random element from the set value at Key. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 204 |  |  |      * See: https://redis.io/commands/spop. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 205 |  |  |      * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 206 |  |  |      * @param  string      $key | 
            
                                                                                                            
                            
            
                                    
            
            
                | 207 |  |  |      * @param  int|integer $count Number of elemets to be returned | 
            
                                                                                                            
                            
            
                                    
            
            
                | 208 |  |  |      * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 209 |  |  |      * @return mixed|string|array   String "popped" value. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 210 |  |  |      *                              Array Member(s) returned or an empty array | 
            
                                                                                                            
                            
            
                                    
            
            
                | 211 |  |  |      *                              if the set doesn't exist | 
            
                                                                                                            
                            
            
                                    
            
            
                | 212 |  |  |      *                              FALSE on error if the key is not a set. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 213 |  |  |      */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 214 |  |  |     public function sPop(string $key, int $count = 1) | 
            
                                                                                                            
                            
            
                                    
            
            
                | 215 |  |  |     { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 216 |  |  |         if ($count > 1) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 217 |  |  |             return $this->redis->sPop($key, $count); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 218 |  |  |         } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 219 |  |  |         return $this->redis->sPop($key); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 220 |  |  |     } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 221 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 222 |  |  |     /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 223 |  |  |      * Returns a random element from the set value at Key, without removing it. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 224 |  |  |      * See: https://redis.io/commands/srandmember. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 225 |  |  |      * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 226 |  |  |      * @param  string      $key | 
            
                                                                                                            
                            
            
                                    
            
            
                | 227 |  |  |      * @param  int|integer $count | 
            
                                                                                                            
                            
            
                                    
            
            
                | 228 |  |  |      * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 229 |  |  |      * @return mixed|string|array   If no count is provided, a random String | 
            
                                                                                                            
                            
            
                                    
            
            
                | 230 |  |  |      *                              value from the set will be returned. If a | 
            
                                                                                                            
                            
            
                                    
            
            
                | 231 |  |  |      *                              count is provided, an array of values from | 
            
                                                                                                            
                            
            
                                    
            
            
                | 232 |  |  |      *                              the set will be returned. Read about the | 
            
                                                                                                            
                            
            
                                    
            
            
                | 233 |  |  |      *                              different ways to use the count here: | 
            
                                                                                                            
                            
            
                                    
            
            
                | 234 |  |  |      *                              SRANDMEMBER Bool FALSE if set identified by | 
            
                                                                                                            
                            
            
                                    
            
            
                | 235 |  |  |      *                              key is empty or doesn't exist. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 236 |  |  |      */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 237 |  |  |     public function sRandMember(string $key, int $count = 1) | 
            
                                                                                                            
                            
            
                                    
            
            
                | 238 |  |  |     { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 239 |  |  |         if ($count > 1) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 240 |  |  |             return $this->redis->sRandMember($key, $count); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 241 |  |  |         } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 242 |  |  |         return $this->redis->sRandMember($key); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 243 |  |  |     } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 244 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 245 |  |  |     /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 246 |  |  |      * Removes the specified member from the set value stored at key. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 247 |  |  |      * See: https://redis.io/commands/srem. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 248 |  |  |      * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 249 |  |  |      * @param  string $key | 
            
                                                                                                            
                            
            
                                    
            
            
                | 250 |  |  |      * @param  splat $members | 
            
                                                                                                            
                            
            
                                    
            
            
                | 251 |  |  |      * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 252 |  |  |      * @return int              The number of elements removed from the set. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 253 |  |  |      */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 254 |  |  |     public function sRem(string $key, ...$members): int | 
            
                                                                                                            
                            
            
                                    
            
            
                | 255 |  |  |     { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 256 |  |  |         return $this->redis->sRem($key, ...$members); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 257 |  |  |     } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 258 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 259 |  |  |     /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 260 |  |  |      * Removes the specified member from the set value stored at key. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 261 |  |  |      * Note: sRemove is an alias for sRem and will be removed in future | 
            
                                                                                                            
                            
            
                                    
            
            
                | 262 |  |  |      * versions of phpredis. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 263 |  |  |      * See: https://redis.io/commands/srem. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 264 |  |  |      * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 265 |  |  |      * @param  string $key | 
            
                                                                                                            
                            
            
                                    
            
            
                | 266 |  |  |      * @param  splat $members | 
            
                                                                                                            
                            
            
                                    
            
            
                | 267 |  |  |      * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 268 |  |  |      * @return int              The number of elements removed from the set. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 269 |  |  |      */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 270 |  |  |     public function sRemove(string $key, ...$members): int | 
            
                                                                                                            
                            
            
                                    
            
            
                | 271 |  |  |     { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 272 |  |  |         return $this->redis->sRem($key, ...$members); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 273 |  |  |     } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 274 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 275 |  |  |     /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 276 |  |  |      * Performs the union between N sets and returns it. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 277 |  |  |      * See: https://redis.io/commands/sunion. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 278 |  |  |      * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 279 |  |  |      * @param  splat $keys | 
            
                                                                                                            
                            
            
                                    
            
            
                | 280 |  |  |      * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 281 |  |  |      * @return array        key1, key2, ... , keyN: Any number of keys | 
            
                                                                                                            
                            
            
                                    
            
            
                | 282 |  |  |      *                      corresponding to sets in redis. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 283 |  |  |      */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 284 |  |  |     public function sUnion(...$keys): array | 
            
                                                                                                            
                            
            
                                    
            
            
                | 285 |  |  |     { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 286 |  |  |         return $this->redis->sUnion(...$keys); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 287 |  |  |     } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 288 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 289 |  |  |     /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 290 |  |  |      * Performs the same action as sUnion, but stores the result in the first | 
            
                                                                                                            
                            
            
                                    
            
            
                | 291 |  |  |      * key. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 292 |  |  |      * See: https://redis.io/commands/sunionstore. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 293 |  |  |      * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 294 |  |  |      * @param  string $destinationKey | 
            
                                                                                                            
                            
            
                                    
            
            
                | 295 |  |  |      * @param  splat $keys | 
            
                                                                                                            
                            
            
                                    
            
            
                | 296 |  |  |      * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 297 |  |  |      * @return int                      The cardinality of the resulting set, | 
            
                                                                                                            
                            
            
                                    
            
            
                | 298 |  |  |      *                                  or FALSE in case of a missing key. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 299 |  |  |      */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 300 |  |  |     public function sUnionStore(string $destinationKey, ...$keys): int | 
            
                                                                                                            
                            
            
                                    
            
            
                | 301 |  |  |     { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 302 |  |  |         if (is_array($keys[0])) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 303 |  |  |             return $this->redis->sUnionStore($destinationKey, ...$keys[0]); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 304 |  |  |         } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 305 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 306 |  |  |         return $this->redis->sUnionStore($destinationKey, ...$keys); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 307 |  |  |     } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 308 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 309 |  |  |     /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 310 |  |  |      * Scan a set for members. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 311 |  |  |      * See: https://redis.io/commands/sscan. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 312 |  |  |      * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 313 |  |  |      * @param  string      $key        The set to search. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 314 |  |  |      * @param  int         $iterator    LONG (reference) to the iterator as we go. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 315 |  |  |      * @param  string      $pattern     String, optional pattern to match against. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 316 |  |  |      * @param  int|integer $count       How many members to return at a time | 
            
                                                                                                            
                            
            
                                    
            
            
                | 317 |  |  |      *                                  (Redis might return a different amount). | 
            
                                                                                                            
                            
            
                                    
            
            
                | 318 |  |  |      * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 319 |  |  |      * @return array                    PHPRedis will return an array of keys or | 
            
                                                                                                            
                            
            
                                    
            
            
                | 320 |  |  |      *                                  FALSE when we're done iterating. | 
            
                                                                                                            
                                                                
            
                                    
            
            
                | 321 |  |  |      */ | 
            
                                                        
            
                                    
            
            
                | 322 |  |  |     public function sScan(string $key, ?int &$iterator, string $pattern, int $count = 10) | 
            
                                                        
            
                                    
            
            
                | 323 |  |  |     { | 
            
                                                        
            
                                    
            
            
                | 324 |  |  |         return $this->redis->sScan($key, $iterator, $pattern, $count); | 
            
                                                        
            
                                    
            
            
                | 325 |  |  |     } | 
            
                                                        
            
                                    
            
            
                | 326 |  |  | } | 
            
                                                        
            
                                    
            
            
                | 327 |  |  |  | 
            
                        
In PHP it is possible to write to properties without declaring them. For example, the following is perfectly valid PHP code:
Generally, it is a good practice to explictly declare properties to avoid accidental typos and provide IDE auto-completion: