Description
Execute the Redis SCRIPT command to perform various operations on the scripting subsystem.
执行Redis脚本命令来执行各种操作。
Return value
SCRIPT LOAD will return the SHA1 hash of the passed script on success, and FALSE on failure.
SCRIPT FLUSH should always return TRUE
SCRIPT KILL will return true if a script was able to be killed and false if not
SCRIPT EXISTS will return an array with TRUE or FALSE for each passed script
Usage
$redis->script('load', $script);
$redis->script('flush');
$redis->script('kill');
$redis->script('exists', $script1, [$script2, $script3, ...]);
