PHP获取redis里不存在的6位随机数应用示例【设置24小时过时】

<?php$randStr = str_shuffle('ABCDEFGHIJKLMNOPQRSTUVWXYZ1234567890');$rand = substr($randStr,0,6);?>

$port_number = '1605D1BCC6C8027BA0223147652D67D6';$send_number = $this->getSixRandNumber();$rs = $this->redis->setKeyValue('ports:' . $send_number,$port_number);//以秒为最小单位$this->redis->setTimeout('ports:' . $send_number,24*3600);/*** 获取6位数随机数*/protected function getSixRandNumber(){$randStr = str_shuffle('1234567890');$rand = substr($randStr,0,6);$port = $this->redis->getItemByKey('ports:' .$rand);//存在的重新取if($port != null){return $this->getSixRandNumber();}return $rand;}