相当经典又十分强大的phpexcel导出上万条甚至几十万条记录的代码分享
这个问题问过几次了，也没得到答案，所以自己仔细钻研，参阅相关资料，终于弄出来。
http://www.youyax.com/forum/index.php/Content-index-id-5058.shtml
它的原理就是
比如数据库有1万条记录要导出，那么一下子导出1万条估计浏览器也会崩溃。
这种做法的思路就是，
1、先查询 xx.xls 文件存不存在，不存在就创建（第一次判断）
2、设置第一行标题（第一次判断），然后读取总行数，然后导出500条记录
3、写入 xx.xls 文件 ，
4、跳转到当前页面，循环上面操作。
回复讨论(解决方案)
1w条浏览器就崩溃了？那excel支持单tab最大65535行，phpexcel岂不是很弱
这样简单的描述，菜鸟的我们还是不会
呃呃呃？？？？
phpexcel 提供了各种缓存方式，你为何不用
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