PHP Benchmarks

Performance comparison of PHP code alternatives.

Test: date vs. strftime

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Result: Discarded

The test labeled "strftime()" was the faster by 0.0197 seconds, (2.989% faster)

strftime() 100%
date() 97.011%

The strftime() test took 0.6393 seconds.
The date() test took 0.659 seconds.


Each test case ran 20 random code order iterations consisting of 164,563 loops for a total of 3,291,260 runs.

  • Line execution difference (0.000006) milliseconds.
  • Avg difference (0.985) milliseconds per 164,563 loops.
  • Total difference 19.70 milliseconds for 3,291,260 loops

The iteration variablity for Code 1 was (4.9836) milliseconds and Code 2 was (2.7107) 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 (