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?

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Result: Discarded

The test labeled "is_array() ? x : array(x)" was the faster by 0.0111 seconds, (1.847% faster)

is_array() ? x : array(x) 100%
(array) 98.153%

The is_array() ? x : array(x) test took 0.5886 seconds.
The (array) test took 0.5997 seconds.

Nitty-Gritty

Each test case ran 20 random code order iterations consisting of 129,784 loops for a total of 2,595,680 runs.

  • Line execution difference (0.000004) milliseconds.
  • Avg difference (0.554) milliseconds per 129,784 loops.
  • Total difference 11.07 milliseconds for 2,595,680 loops

The iteration variablity for Code 1 was (6.5838) milliseconds and Code 2 was (5.3742) 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)