PHP Benchmarks

Performance comparison of PHP code alternatives.

Test: date vs. strftime

No Description

View test history (3) Run this test again Return to test menu

Result: Discarded

The test labeled "date()" was the faster by 0.0206 seconds, (3.587% faster)

date() 100%
strftime() 96.413%

The date() test took 0.5529 seconds.
The strftime() test took 0.5735 seconds.


Each test case ran 20 random code order iterations consisting of 149,970 loops for a total of 2,999,400 runs.

  • Line execution difference (0.000007) milliseconds.
  • Avg difference (1.028) milliseconds per 149,970 loops.
  • Total difference 20.57 milliseconds for 2,999,400 loops

The iteration variablity for Code 1 was (0.9463) milliseconds and Code 2 was (0.7513) 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 (