1)随机取出5条记录用sql语句就行了;mysql如下："select * from youtable order by rand() limit 5";2)同样随机取5-10条：num=rand(5,10);sql="select * from youtable order by rand() limit $num";
MYSQL php RAND随机查询太慢了，请教改一下这个代码！
1)随机取出5条记录用sql语句就行了;
mysql如下："select * from youtable order by rand() limit 5";
2)同样随机取5-10条：
$num=rand(5,10);
$sql="select * from youtable order by rand() limit $num";2019-09-08
