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Home Backend Development PHP Tutorial 一个从MYSQL取数据,在前台显示的问题

一个从MYSQL取数据,在前台显示的问题

Jun 23, 2016 pm 02:20 PM

数据 mysql 服务器 图片

想上传图片到服务器,用MYSQL存地址,有1000来张图片,随机找几张在前台显示.
自己实在写不出来,怎么个思路啊?网上搜也知道要搜什么关键词,那位大神帮帮忙?

回复讨论(解决方案)

简单的随机一个数就行。也是最好的办法。 你要全部随机那就用IN

我觉得可以在程序里面随机几个数,然后带入mysql去查询。

思路,先在后台做个upload上传,然后把图片路径存到数据库里,前台直接调取就可以了。

1.首先你图片上传应该会吧!不会看这个视屏教程(http://www.php100.com/html/shipinjiaocheng/PHP100shipinjiaocheng/2009/0416/808.htm)
2.图片地址入数据库,不会一样去看教程
3.随机取几张图片,比如12张,sql可以这么写:

select * from `表` order by rand() limit 12
Copy after login
Copy after login

1.首先你图片上传应该会吧!不会看这个视屏教程(http://www.php100.com/html/shipinjiaocheng/PHP100shipinjiaocheng/2009/0416/808.htm)
2.图片地址入数据库,不会一样去看教程
3.随机取几张图片,比如12张,sql可以这么写:

select * from `表` order by rand() limit 12
Copy after login
Copy after login

404错误,还有别的教程吗?

php文件上传
http://www.w3school.com.cn/php/php_file_upload.asp

mysql的查询语句 是支持随机查询的 http://www.3lian.com/edu/2013/03-01/58619.html

如果对查询速率没什么要求,建议使用order by rand() ,因为比较简单

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