Warning: Division by zero in /var/customers/webs/stc/benchmark/index.php on line 256 Test: (bool) vs. !empty

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Performance comparison of PHP code alternatives.

Test: (bool) vs. !empty()

According to the documentation, empty is like isset and a reverse bool cast. Perhaps together, those are faster than the cost of the ! on empty?

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Result

Unfortunately, no history for this test is available.

Code

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

for ($j = 0; $j < 1000; $j++)
{
	$i = '1';
	$GLOBALS['dummy'] = isset($i) && (bool) $i;
}

The second test, "!empty()", was:

for ($j = 0; $j < 1000; $j++)
{
	$i = '1';
	$GLOBALS['dummy'] = !empty($i);
}

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