PHP Benchmarks

Performance comparison of PHP code alternatives.

Test: foreach vs. for

Note that this isn't helpful unless you have ascending int keys.

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

Result: Saved

The test labeled "foreach" was the faster by 0.031 seconds, (3.177% faster)

foreach 100%
for 96.823%

The foreach test took 0.946 seconds.
The for test took 0.977 seconds.

Nitty-Gritty

Each test case ran 20 random code order iterations consisting of 268,220 loops for a total of 5,364,400 runs.

  • Line execution difference (0.000006) milliseconds.
  • Avg difference (1.552) milliseconds per 268,220 loops.
  • Total difference 31.03 milliseconds for 5,364,400 loops

The iteration variablity for Code 1 was (0.4783) milliseconds and Code 2 was (0.4535) milliseconds. The lower and the closer together there values are the more accurate the results are.

Code

The first test, "foreach", was:

foreach ($GLOBALS['dummy'] as $v)
	$v[0] + 1;

The second test, "for", was:

for ($k = 0, $n = count($GLOBALS['dummy']); $k < $n; $k++)
	$GLOBALS['dummy'][$k][0] + 1;

Running: Linux (x86_64:1 GB) PHP (7.2.19-1+ubuntu16.04.1+deb.sury.org+1)