PHP Benchmarks

Performance comparison of PHP code alternatives.

Test: (array) vs. array w/is_array

Does the (array) cast work better than the array() construct if you might already have an array?

View test history (3) Run this test again Return to test menu

Result: Saved

The test labeled "(array)" was the faster by 0.0183 seconds, (1.825% faster)

(array) 100%
is_array() ? x : array(x) 98.175%

The (array) test took 0.9863 seconds.
The is_array() ? x : array(x) test took 1.0046 seconds.

Nitty-Gritty

Each test case ran 20 random code order iterations consisting of 275,171 loops for a total of 5,503,420 runs.

  • Line execution difference (0.000003) milliseconds.
  • Avg difference (0.917) milliseconds per 275,171 loops.
  • Total difference 18.33 milliseconds for 5,503,420 loops

The iteration variablity for Code 1 was (1.4318) milliseconds and Code 2 was (1.4628) milliseconds. The lower and the closer together there values are the more accurate the results are.

Code

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

for ($j = 0; $j < 1000; $j++)
	$GLOBALS['dummy'] = (array) $j;

The second test, "is_array() ? x : array(x)", was:

for ($j = 0; $j < 1000; $j++)
	$GLOBALS['dummy'] = is_array($j) ? $j : array($j);

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