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 0.0439 seconds, (3.490% faster)

strftime() 100%
date() 96.51%

The strftime() test took 1.2137 seconds.
The date() test took 1.2576 seconds.

Nitty-Gritty

Each test case ran 20 random code order iterations consisting of 266,093 loops for a total of 5,321,860 runs.

  • Line execution difference (0.000008) milliseconds.
  • Avg difference (2.194) milliseconds per 266,093 loops.
  • Total difference 43.89 milliseconds for 5,321,860 loops

The iteration variablity for Code 1 was (5.0521) milliseconds and Code 2 was (3.5291) milliseconds. The lower and the closer together there values are the more accurate the results are.

Code

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 (7.2.15-1+ubuntu16.04.1+deb.sury.org+1)