<?php
/**
* test that filemtime() returns Unix timestamp (UTC) on current system
*/
$timestampStartOfUnixEpoch = 0; // start of the Unix epoch.
$timestampRequest = 3600 * (int) ($_SERVER['REQUEST_TIME'] / 3600);
$testFile = sprintf('%s/%s', sys_get_temp_dir(), 'test-filemtime');
printf("Testfile is '%s'.\n", $testFile);
touch($testFile, $timestampStartOfUnixEpoch);
clearstatcache(false, $testFile);
$mtime = filemtime($testFile);
printf("Testfile '%s' mtime should be from touch %d, is %d.\n", basename($testFile), $timestampStartOfUnixEpoch, $mtime);
printf("The mtime represents %s\n", date('r', $mtime));
touch($testFile, $timestampRequest);
clearstatcache(false, $testFile);
$mtime = filemtime($testFile);
printf("Testfile '%s' mtime should be from touch %d, is %d.\n", basename($testFile), $timestampRequest, $mtime);
printf("The mtime represents %s\n", date('r', $mtime));
unlink($testFile);
preferences:
50.65 ms | 402 KiB | 5 Q