Test: function vs. class method

Tests for any difference between calling a free function or a member function.

View test history (2) Run this test again Return to test menu

Result: Discarded

The test labeled "class method" was the faster by 0.0286 seconds, (2.706% faster)

class method 100%

function 97.294%

The class method test took 1.0297 seconds.
The function test took 1.0584 seconds.

Nitty-Gritty

Each test case ran 20 random code order iterations consisting of 285,229 loops for a total of 5,704,580 runs.

Line execution difference (0.000005) milliseconds.
Avg difference (1.432) milliseconds per 285,229 loops.
Total difference 28.64 milliseconds for 5,704,580 loops

The iteration variablity for Code 1 was (1.5293) milliseconds and Code 2 was (1.2154) milliseconds. The lower and the closer together there values are the more accurate the results are.

Code

The first test, "class method", was:

/*
class Example
{
	var $x;

	function foo()
	{
		$this->x = 42;

		return 42;
	}
}
*/

$test = new Example();

for ($i = 0; $i < 100; $i++)
	$GLOBALS['dummy'] = $test->foo();

The second test, "function", was:

/*
function example_foo(&$array)
{
	$array['x'] = 42;

	return 42;
}
*/

$test = array();

for ($i = 0; $i < 100; $i++)
	$GLOBALS['dummy'] = example_foo($test);

PHP Benchmarks