php正则表达式匹配日志文件

Question

I am trying to match exception lines I see in a log file. The log file has the format of "[timestamp] threadid(8 alphanumeric digits) applicationName(any length of alphanumeric characters) E(to denote exception message)"

So a sample log exception message would be:

"[11/27/12 22:33:02:635 EST] 0000009a myApplication E " Anything can come after the E.

I am having trouble finding a regular expression to match this using PHP preg_match

Any help would be appreciated.

Cheers

Answer 1

try the following:

'/^\[[^\]]+\]\s\w{8}\s[^\s]+\sE.*/m'

The trailing "m" ensures, that the wedge at the beginning matches the beginning of a line in your log.

This solution will of course only work, if all the log entries look pretty similar except for the "E". If there are log entries eg without timestamps, it might fail and you have to look for more detailed expressions like sputnick's.

Answer 2

尝试使用此正则表达式（带有捕获组 ）：

/^\[\d+/\d+/\d+\s+\d+:\d+:\d+:\d+\s+\w+\]\s+\w{8}\s+\w+\s+E(.*)/