Test: array_push vs. [] =

According to the documentation, these are equivalent. Past tests have shown otherwise...

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Result: Discarded

The test labeled "array_push()" was the faster by 0.0204 seconds, (4.187% faster)

array_push() 100%

$array[] = 95.813%

The array_push() test took 0.4666 seconds.
The $array[] = test took 0.487 seconds.

Nitty-Gritty

Each test case ran 20 random code order iterations consisting of 135,245 loops for a total of 2,704,900 runs.

Line execution difference (0.000008) milliseconds.
Avg difference (1.019) milliseconds per 135,245 loops.
Total difference 20.39 milliseconds for 2,704,900 loops

The iteration variablity for Code 1 was (0.1909) milliseconds and Code 2 was (1.1713) milliseconds. The lower and the closer together there values are the more accurate the results are.

Code

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

$array = array();
for ($n = 0; $n < 8; $n++)
{
	for ($i = 0; $i < 50; $i++)
		array_push($array, $i);
}

The second test, "$array[] =", was:

$array = array();
for ($n = 0; $n < 8; $n++)
{
	for ($i = 0; $i < 50; $i++)
		$array[] = $i;
}

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