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PHP的fwrite能并发执行?该如何解决

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Release： 2016-06-13 12:35:20
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PHP的fwrite能并发执行?

<br />
$f2 = fopen('file/index.txt','w');<br />
fwrite($f2,$h.$old);<br />
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. 
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PHP能并发执行, 不会出错?

Related labels：
file fwrite index nbsp txt
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