PHP Benchmarks

Performance comparison of PHP code alternatives.

Test: strftime vs. localtime

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Result: Discarded

The test labeled "strftime()" was the faster by 0.0947 seconds, (7.004% faster)

strftime() 100%
localtime() 92.996%

The strftime() test took 1.2578 seconds.
The localtime() test took 1.3525 seconds.

Nitty-Gritty

Each test case ran 20 random code order iterations consisting of 292,031 loops for a total of 5,840,620 runs.

  • Line execution difference (0.000016) milliseconds.
  • Avg difference (4.736) milliseconds per 292,031 loops.
  • Total difference 94.73 milliseconds for 5,840,620 loops

The iteration variablity for Code 1 was (16.0527) milliseconds and Code 2 was (17.2762) milliseconds. The lower and the closer together there values are the more accurate the results are.

Code

The first test, "strftime()", was:

for ($i = 0; $i < 100; $i++)
	$GLOBALS['dummy'] = (int) strftime('%d', $GLOBALS['t']);

The second test, "localtime()", was:

for ($i = 0; $i < 100; $i++)
{
	$temp = localtime($GLOBALS['t'], true);
	$GLOBALS['dummy'] = $temp['tm_mday'];
}

Running: Linux (x86_64:1 GB) PHP (7.2.25-1+ubuntu16.04.1+deb.sury.org+1)