PHP Benchmarks

Performance comparison of PHP code alternatives.

Test: date vs. strftime

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Result: Discarded

The test labeled "date()" was the faster by 0.0175 seconds, (1.796% faster)

date() 100%
strftime() 98.204%

The date() test took 0.957 seconds.
The strftime() test took 0.9745 seconds.

Nitty-Gritty

Each test case ran 20 random code order iterations consisting of 257,398 loops for a total of 5,147,960 runs.

  • Line execution difference (0.000003) milliseconds.
  • Avg difference (0.875) milliseconds per 257,398 loops.
  • Total difference 17.51 milliseconds for 5,147,960 loops

The iteration variablity for Code 1 was (1.7767) milliseconds and Code 2 was (3.2746) 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 (7.2.22-1+ubuntu16.04.1+deb.sury.org+1)