PHP Benchmarks

Performance comparison of PHP code alternatives.

Test: nested ifs

No Description

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Result: Discarded

The test labeled "if ($x) if ($y)" was the faster by 0.0467 seconds, (5.409% faster)

if ($x) if ($y) 100%
if ($x && $y) 94.591%

The if ($x) if ($y) test took 0.8161 seconds.
The if ($x && $y) test took 0.8628 seconds.

Nitty-Gritty

Each test case ran 20 random code order iterations consisting of 203,310 loops for a total of 4,066,200 runs.

  • Line execution difference (0.000011) milliseconds.
  • Avg difference (2.333) milliseconds per 203,310 loops.
  • Total difference 46.67 milliseconds for 4,066,200 loops

The iteration variablity for Code 1 was (6.4359) milliseconds and Code 2 was (7.6202) 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 (7.2.34-18+ubuntu16.04.1+deb.sury.org+1)