PHP Benchmarks

Performance comparison of PHP code alternatives.

Test: foreach key vs. no key

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Historical Results

Based on (4) saved test runs, The test labeled "with key" was (on average) the faster by 0.0173 seconds, (1.741% faster)

with key 100%
without key 98.259%

The with key test took 0.9754 seconds.
The without key test took 0.9927 seconds.

Nitty-Gritty

Each test case ran 20 random code order iterations consisting of 246,005 loops for a total of 4,920,105 runs.

  • Line execution difference (0.000004) milliseconds.
  • Avg difference (0.000) milliseconds per 246,005 loops.
  • Total difference 17.29 milliseconds for 4,920,105 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, "with key", was:

foreach ($GLOBALS['dummy'] as $k => $v)
	$v + array(1);

The second test, "without key", was:

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

Running: Linux (x86_64:1 GB) PHP (7.2.25-1+ubuntu16.04.1+deb.sury.org+1)