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 0.0558 seconds, (4.672% faster)

is_array() ? x : array(x) 100%
(array) 95.328%

The is_array() ? x : array(x) test took 1.1386 seconds.
The (array) test took 1.1944 seconds.

Nitty-Gritty

Each test case ran 20 random code order iterations consisting of 271,476 loops for a total of 5,429,520 runs.

  • Line execution difference (0.000010) milliseconds.
  • Avg difference (2.790) milliseconds per 271,476 loops.
  • Total difference 55.80 milliseconds for 5,429,520 loops

The iteration variablity for Code 1 was (8.5914) milliseconds and Code 2 was (7.1731) 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)