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PHP的fwrite能并发执行?

WBOY
Release： 2016-06-23 14:13:25
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$f2 = fopen('file/index.txt','w');fwrite($f2,$h.$old);fclose($f2);
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例如: 制作留言板. 没有使用MySQL等软件. 直接把留言写入一个.txt文件里.

如果在高峰时期, 同一秒内有50,000人留言. 
www.dbscripts.net/guestbook/demo/


PHP能并发执行, 不会出错?


回复讨论(解决方案)

出什么错？
你使用写方式打开的
file/index.txt 永远都是最后一个写的内容

写方式会覆盖吧

不知道.可能传说中的文件锁是解决之道

fopen('file/index.txt','w');
这也可以实现一个留言板？？
一秒搞定5W是不是太夸张了………………

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PHP的fwrite能并发执行?
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