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Editorial Team
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Asked: 2026-05-23T09:04:19+00:00

I am new to PHP and am writing a PHP script that contains a

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I am new to PHP and am writing a PHP script that contains a module which reads the file timestamp out of a file and then compare with system time to see whether the file is older than 5 minutes or not and I am wondering how that can be achieved. I am currently using

$timeStamp = strftime('%c', filectime($this->localPath));
$timeStamp2 = filectime($this->localPath);

The two $timeStamp and $timeStamp2 are different, the 1st one is more human readable

$timeStamp Mon Jun 20 15:17:01 2011
$timeStamp2 1308608221

What does $timeStamp2 mean?

And again, how to see if the file is more than 5 minutes old?

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1 Answer

  1. Editorial Team

    That is Unix timestamp actually (seconds since 1st jan 1970 or EPOCH)

    You can use time() function to get current time in same Unix format.

    And then subtract both time values to check whether difference is > 300 (5 min) or not.

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