A little benchmarking script for https://github.com/php/php-src/pull/438

microbench.php

<?php

$code = <<<'CODE'

function abc(array $arr) {}
function def(callable $arr) {}

ClassNameWithMoreThan10Chars::class;

class ghi {
	use jkl { mno as protected; }
}

CODE;

$start = microtime(1);
for ($i = 0; $i < 10000; $i++)
	runkit_lint($code);
print "Took for $i iterations: ".(microtime(1) - $start)." seconds\n";