Warning: Division by zero in /var/customers/webs/stc/benchmark/index.php on line 256 Test: array_merge vs. for (int keys)

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Test: array_merge() vs. for (int keys)

The benefit of array_merge() is it doesn't overwrite int keys. But what if we do it manually?

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Result

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Code

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

$array = array_merge($GLOBALS['dummy1'], $GLOBALS['dummy2'], $GLOBALS['dummy3']);

The second test, "for", was:

$array = $GLOBALS['dummy1'];
for ($i = 0, $n = count($GLOBALS['dummy2']); $i < $n; $i++)
	$array[] = $GLOBALS['dummy2'][$i];
for ($i = 0, $n = count($GLOBALS['dummy3']); $i < $n; $i++)
	$array[] = $GLOBALS['dummy3'][$i];

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