PHP Benchmarks

Performance comparison of PHP code alternatives.

Test: date vs. strftime

No Description

Run this test again Return to test menu

Result: Discarded

The test labeled "strftime()" was the faster by 0.0505 seconds, (7.615% faster)

strftime() 100%
date() 92.385%

The strftime() test took 0.6129 seconds.
The date() test took 0.6634 seconds.


Each test case ran 20 random code order iterations consisting of 139,010 loops for a total of 2,780,200 runs.

  • Line execution difference (0.000018) milliseconds.
  • Avg difference (2.526) milliseconds per 139,010 loops.
  • Total difference 50.52 milliseconds for 2,780,200 loops

The iteration variablity for Code 1 was (10.5500) milliseconds and Code 2 was (7.9957) milliseconds. The lower and the closer together there values are the more accurate the results are.


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

for ($i = 0; $i < 100; $i++)
	$GLOBALS['dummy'] = date('Y-m-d \\a\\t H:i:s', $GLOBALS['t']);

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

for ($i = 0; $i < 100; $i++)
	$GLOBALS['dummy'] = strftime('%Y-%m-%d at %H:%M:%S', $GLOBALS['t']);

Running: Linux (x86_64:1 GB) PHP (