PHP Benchmarks

Performance comparison of PHP code alternatives.

Test: array_map vs. foreach

Is there a benefit to using array_map() over a simple foreach?

View test history (5) Run this test again Return to test menu

Result: Discarded

The test labeled "foreach" was the faster by 0.0054 seconds, (1.056% faster)

foreach 100%
array_map() 98.944%

The foreach test took 0.5072 seconds.
The array_map() test took 0.5126 seconds.

Nitty-Gritty

Each test case ran 20 random code order iterations consisting of 123,189 loops for a total of 2,463,780 runs.

  • Line execution difference (0.000002) milliseconds.
  • Avg difference (0.271) milliseconds per 123,189 loops.
  • Total difference 5.41 milliseconds for 2,463,780 loops

The iteration variablity for Code 1 was (2.1968) milliseconds and Code 2 was (1.8694) milliseconds. The lower and the closer together there values are the more accurate the results are.

Code

The first test, "array_map()", was:

/*
function foo($v)
{
	return $v * 2;
}
*/

$array = array_map('foo', $GLOBALS['dummy']);

The second test, "foreach", was:

$array = array();
foreach ($GLOBALS['dummy'] as $k => $v)
	$array[$k] = $v * 2;

Running: Linux (x86_64:1 GB) PHP (7.2.22-1+ubuntu16.04.1+deb.sury.org+1)