| 1 | <?php | ||
| 5 | trait Transactions | ||
| 6 | { | ||
| 7 | /** | ||
| 8 | * Marks the start of a transaction block. Subsequent commands will be | ||
| 9 | * queued for atomic execution using EXEC. | ||
| 10 | * See: https://redis.io/commands/multi. | ||
| 11 | * | ||
| 12 | * @return transaction context | ||
| 13 | */ | ||
| 14 | public function multi() | ||
| 18 | |||
| 19 | |||
| 20 | /** | ||
| 21 | * Executes all previously queued commands in a transaction and restores | ||
| 22 | * the connection state to normal. | ||
| 23 | * | ||
| 24 | * See: https://redis.io/commands/exec. | ||
| 25 | * | ||
| 26 | * @return array each element being the reply to each of the commands | ||
| 27 | * in the atomic transaction. | ||
| 28 | */ | ||
| 29 | public function exec($multi): array | ||
| 33 | |||
| 34 | |||
| 35 | /** | ||
| 36 | * Flushes all previously queued commands in a transaction and restores the | ||
| 37 | * connection state to normal. | ||
| 38 | * | ||
| 39 | * See: https://redis.io/commands/discard. | ||
| 40 | * | ||
| 41 | * @param $multi | ||
| 42 | * | ||
| 43 | * @return bool | ||
| 44 | */ | ||
| 45 | public function discard(\Redis $multi): bool | ||
| 49 | |||
| 50 | |||
| 51 | /** | ||
| 52 | * Marks the given keys to be watched for conditional execution of a | ||
| 53 | * transaction. | ||
| 54 | * | ||
| 55 | * See: https://redis.io/commands/watch. | ||
| 56 | * | ||
| 57 | * @param splat $keys | ||
| 58 | * | ||
| 59 | * @return bool | ||
| 60 | */ | ||
| 61 | public function watch(...$keys): bool | ||
| 65 | |||
| 66 | |||
| 67 | /** | ||
| 68 | * Flushes all the previously watched keys for a transaction. | ||
| 69 | * If you call EXEC or DISCARD, there's no need to manually call UNWATCH. | ||
| 70 | * | ||
| 71 | * See: https://redis.io/commands/unwatch. | ||
| 72 | * | ||
| 73 | * @param splat $keys | ||
| 74 | * | ||
| 75 | * @return bool | ||
| 76 | */ | ||
| 77 | public function unwatch(...$keys): bool | ||
| 81 | } | ||
| 82 | 
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: