stat_cache_test.php

<?php
$dir = '/tmp';
$file = "$dir/alpha";
file_put_contents($file, 'test');
$stat_one = stat($file);
file_put_contents($file, 'test_string');
$stat_two = stat($file);
clearstatcache(TRUE, $file);
$stat_three = stat($file);
print('Should contain "size", however:');
print_r(array_diff_assoc($stat_one, $stat_two));
print('After clearing the stat cache:');
print_r(array_diff_assoc($stat_one, $stat_three));