PHP Benchmarks

Performance comparison of PHP code alternatives.

Test: global vs. static

No Description

Run this test again Return to test menu

Historical Results

Based on (3) saved test runs, The test labeled "global" was (on average) the faster by 0.0112 seconds, (1.531% faster)

global 100%
static 98.469%

The global test took 0.7219 seconds.
The static test took 0.7331 seconds.

Nitty-Gritty

Each test case ran 20 random code order iterations consisting of 196,654 loops for a total of 3,933,087 runs.

  • Line execution difference (0.000003) milliseconds.
  • Avg difference (0.000) milliseconds per 196,654 loops.
  • Total difference 11.23 milliseconds for 3,933,087 loops

The iteration variablity for Code 1 was (0.0000) milliseconds and Code 2 was (0.0000) milliseconds. The lower and the closer together there values are the more accurate the results are.

Code

The first test, "global", was:

/*
function foo_global($i)
{
	global $dummy;

	$dummy = $i;
}
*/

for ($i = 0; $i < 100; $i++)
	foo_global($i);

The second test, "static", was:

/*
function foo_static($i)
{
	static $dummy = null;

	$dummy = $i;
}
*/

for ($i = 0; $i < 100; $i++)
	foo_static($i);

Running: Linux (x86_64:1 GB) PHP (7.2.15-1+ubuntu16.04.1+deb.sury.org+1)