PHP Benchmarks

Performance comparison of PHP code alternatives.

Test: date vs. strftime

No Description

View test history (2) Run this test again Return to test menu

Result: Saved

The test labeled "date()" was the faster by 0.0162 seconds, (2.015% faster)

date() 100%
strftime() 97.985%

The date() test took 0.7895 seconds.
The strftime() test took 0.8058 seconds.


Each test case ran 20 random code order iterations consisting of 199,396 loops for a total of 3,987,920 runs.

  • Line execution difference (0.000004) milliseconds.
  • Avg difference (0.812) milliseconds per 199,396 loops.
  • Total difference 16.24 milliseconds for 3,987,920 loops

The iteration variablity for Code 1 was (4.5683) milliseconds and Code 2 was (4.6287) 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 (