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 0.0261 seconds, (2.095% faster)

if ($x && $y) 100%
if ($x) if ($y) 97.905%

The if ($x && $y) test took 1.2188 seconds.
The if ($x) if ($y) test took 1.2448 seconds.

Nitty-Gritty

Each test case ran 20 random code order iterations consisting of 288,814 loops for a total of 5,776,280 runs.

  • Line execution difference (0.000005) milliseconds.
  • Avg difference (1.304) milliseconds per 288,814 loops.
  • Total difference 26.07 milliseconds for 5,776,280 loops

The iteration variablity for Code 1 was (7.0712) milliseconds and Code 2 was (8.3412) 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)