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 "opendir()/readdir()" was the faster by 0.0802 seconds, (6.981% faster)

opendir()/readdir() 100%
glob(GLOB_NOSORT) 93.019%

The opendir()/readdir() test took 1.0686 seconds.
The glob(GLOB_NOSORT) test took 1.1488 seconds.

Nitty-Gritty

Each test case ran 20 random code order iterations consisting of 294,285 loops for a total of 5,885,700 runs.

  • Line execution difference (0.000014) milliseconds.
  • Avg difference (4.010) milliseconds per 294,285 loops.
  • Total difference 80.20 milliseconds for 5,885,700 loops

The iteration variablity for Code 1 was (3.8113) milliseconds and Code 2 was (8.5286) 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 (7.2.34-18+ubuntu16.04.1+deb.sury.org+1)