PHP Benchmarks

Performance comparison of PHP code alternatives.

Test: strftime vs. localtime

No Description

Run this test again Return to test menu

Historical Results

Based on (1) saved test runs, The test labeled "strftime()" was (on average) the faster by 0.0227 seconds, (2.098% faster)

strftime() 100%
localtime() 97.902%

The strftime() test took 1.0602 seconds.
The localtime() test took 1.0829 seconds.

Nitty-Gritty

Each test case ran 20 random code order iterations consisting of 285,375 loops for a total of 5,707,500 runs.

  • Line execution difference (0.000004) milliseconds.
  • Avg difference (0.000) milliseconds per 285,375 loops.
  • Total difference 22.72 milliseconds for 5,707,500 loops

The iteration variablity for Code 1 was (0.0000) milliseconds and Code 2 was (0.0000) milliseconds. The lower and the closer together there values are the more accurate the results are.

Code

The first test, "strftime()", was:

for ($i = 0; $i < 100; $i++)
	$GLOBALS['dummy'] = (int) strftime('%d', $GLOBALS['t']);

The second test, "localtime()", was:

for ($i = 0; $i < 100; $i++)
{
	$temp = localtime($GLOBALS['t'], true);
	$GLOBALS['dummy'] = $temp['tm_mday'];
}

Running: Linux (x86_64:1 GB) PHP (7.2.19-1+ubuntu16.04.1+deb.sury.org+1)