<?php
/**
* test that filemtime() returns Unix timestamp (UTC) on current system
*/
$now = isset($_SERVER['REQUEST_TIME']) ? $_SERVER['REQUEST_TIME'] : time();
$timestampStartOfUnixEpoch = 0; // start of the Unix epoch.
$timestampRequest = 3600 * (int)($now / 3600);
$tempDir = function_exists('sys_get_temp_dir') ? sys_get_temp_dir() : '/tmp/';
$testFile = sprintf('%s/%s', $tempDir, 'test-filemtime');
printf("Testfile is '%s'.\n", $testFile);
touch($testFile, $timestampStartOfUnixEpoch);
php_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);
php_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);
/**
* @param $clear_realpath_cache
* @param $filename
* @link http://php.net/manual/en/function.version-compare.php
*/
function php_clearstatcache($clear_realpath_cache, $filename) {
if (version_compare(PHP_VERSION, '5.3.0') >= 0) {
clearstatcache($clear_realpath_cache, $filename);
} else {
clearstatcache();
}
}
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28.61 ms | 402 KiB | 5 Q