如何逐行读取文件10秒？(How can I read a file line by line for 10 seconds?)

如何逐行读取文件10秒？(How can I read a file line by line for 10 seconds?)

我正在开展一个项目，我需要阅读日志并检查错误。 我正在使用while循环：

while($count < 10) { $count++; # Stop waiting if an exception is thrown $sdata = file($logfile); $lastline = $sdata[count($sdata)-1]; if(startsWith($lastline, "Running:") == false or startsWith($lastline,"Executing:") == false) { break; } sleep(1); }

这是每秒检查一次日志，但是，我需要在它进入时读取每一行。如何在保持while循环的超时值的同时读取日志的最后一行？

I'm working on a project where I need to read a log and check for errors. I'm using a while loop like so:

while($count < 10) { $count++; # Stop waiting if an exception is thrown $sdata = file($logfile); $lastline = $sdata[count($sdata)-1]; if(startsWith($lastline, "Running:") == false or startsWith($lastline,"Executing:") == false) { break; } sleep(1); }

This is checking the log every second, however, I need to read EVERY line as it comes in. How do I read the last line of the log as it is written while maintaining a timeout value for the while loop?

最满意答案

这样做你需要的吗？

$time = time(); $stop = $time+10; while($time < $stop) { $time = time(); # Stop waiting if an exception is thrown $sdata = file($logfile); $lastline = end($sdata); if(startsWith($lastline, "Running:") == false or startsWith($lastline,"Executing:") == false) { break; } }

Does this do what you need?

$time = time(); $stop = $time+10; while($time < $stop) { $time = time(); # Stop waiting if an exception is thrown $sdata = file($logfile); $lastline = end($sdata); if(startsWith($lastline, "Running:") == false or startsWith($lastline,"Executing:") == false) { break; } }