PHP Benchmarks

Performance comparison of PHP code alternatives.

Test: nested ifs

No Description

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Result: Discarded

The test labeled "if ($x && $y)" was the faster by 0.0303 seconds, (4.362% faster)

if ($x && $y) 100%
if ($x) if ($y) 95.638%

The if ($x && $y) test took 0.664 seconds.
The if ($x) if ($y) test took 0.6943 seconds.

Nitty-Gritty

Each test case ran 20 random code order iterations consisting of 158,096 loops for a total of 3,161,920 runs.

  • Line execution difference (0.000010) milliseconds.
  • Avg difference (1.514) milliseconds per 158,096 loops.
  • Total difference 30.29 milliseconds for 3,161,920 loops

The iteration variablity for Code 1 was (4.1833) milliseconds and Code 2 was (3.5420) milliseconds. The lower and the closer together there values are the more accurate the results are.

Code

The first test, "if ($x) if ($y)", was:

for ($i = 0; $i < 100; $i++)
{
	if ($GLOBALS['dummy_false'] === false)
		if ($GLOBALS['dummy_true'] === true)
			$GLOBALS['dummy'] = 42;
}

The second test, "if ($x && $y)", was:

for ($i = 0; $i < 100; $i++)
{
	if ($GLOBALS['dummy_false'] === false && $GLOBALS['dummy_true'] === true)
			$GLOBALS['dummy'] = 42;
}

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