PHP Benchmarks

Performance comparison of PHP code alternatives.

Test: glob(no_sort) vs opendir/readdir files only

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Result: Discarded

The test labeled "glob(GLOB_NOSORT)" was the faster by 0.0833 seconds, (7.371% faster)

glob(GLOB_NOSORT) 100%
opendir()/readdir() 92.629%

The glob(GLOB_NOSORT) test took 1.0465 seconds.
The opendir()/readdir() test took 1.1298 seconds.

Nitty-Gritty

Each test case ran 20 random code order iterations consisting of 270,643 loops for a total of 5,412,860 runs.

  • Line execution difference (0.000015) milliseconds.
  • Avg difference (4.164) milliseconds per 270,643 loops.
  • Total difference 83.28 milliseconds for 5,412,860 loops

The iteration variablity for Code 1 was (7.4571) milliseconds and Code 2 was (2.8116) milliseconds. The lower and the closer together there values are the more accurate the results are.

Code

The first test, "opendir()/readdir()", was:

clearstatcache();
$result = array();
$files = array();
$dir = opendir($GLOBALS['basedir'] . '/tests');
while (($file = readdir($dir)) !== false)
{
	if (!is_dir($basedir . '/' . $file))
	{
		$result[] = $file;
	}
}

The second test, "glob(GLOB_NOSORT)", was:

clearstatcache();
$result = array();
foreach (glob($GLOBALS['basedir'] . '/tests/*', GLOB_NOSORT) as $file)
{
	if (!is_dir($file))
	{
		$result[] = $file;
	}
}

Running: Linux (x86_64:1 GB) PHP (7.2.25-1+ubuntu16.04.1+deb.sury.org+1)