<?php
$iterations = 10**6;

class SomeVeryLongNameForCompareWithSomeVeryPerfectMethodOrStrategyAndSomeOtherWordsInThisName {}
class Short {}

function checkInstanceOfLongClassName($val): bool {
    return $val instanceof SomeVeryLongNameForCompareWithSomeVeryPerfectMethodOrStrategyAndSomeOtherWordsInThisName;
}

function checkInstanceOfShortClassName($val): bool {
    return $val instanceof Short;
}

function nullEquality($val): bool {
    return $val === null;
}

$testFunctions = [
    'checkInstanceOfLongClassName',
    'checkInstanceOfShortClassName',
    'nullEquality',
];

$checkedValues = [
    'null' => null,
    'shortClassName' => new Short(),
    'longClassName' => new SomeVeryLongNameForCompareWithSomeVeryPerfectMethodOrStrategyAndSomeOtherWordsInThisName(),
];

foreach ($testFunctions as $functionName) {
    foreach ($checkedValues as $valueName => $value) {
        $totalTime = 0;
        $minTime = PHP_FLOAT_MAX;
        $maxTime = PHP_FLOAT_MIN;

        for ($i = 0; $i < $iterations; ++$i) {
            $start = microtime(true);
            $functionName($value);
            $time = microtime(true) - $start;

            $totalTime += $time;
            if ($time < $minTime) $minTime = $time;
            if ($time > $maxTime) $maxTime = $time;
        }

        printf(
            "Method '%s' for '%s' \n\tavgTime: %e\n\tminTime: %e\n\tmaxTime: %e\n",
            $functionName,
            $valueName,
            $totalTime / $iterations,
            $minTime,
            $maxTime
        );
    }
}
?>