File functions profiling

<?php

function test_with_file_exists_no_file() {
    $fileName = uniqid('');
    if (file_exists($fileName)) {
        require_once($fileName);
    }
}


function test_with_file_exists_with_file($fileName) {
    if (file_exists($fileName)) {
        require_once($fileName);
    }
}

function test_without_file_exists_no_file() {
    $fileName = uniqid('');
    @include_once($fileName);
}


function test_without_file_exists_with_file($fileName) {
    @include_once($fileName);
}

function run_test_with_file() {
    for ($i = 0; $i < 10000; $i++) {
        $fileName = uniqid('test_');
        touch($fileName);
        test_with_file_exists_with_file($fileName);
        unlink($fileName);
    }

    for ($i = 0; $i < 10000; $i++) {
        $fileName = uniqid('test_');
        touch($fileName);
        test_without_file_exists_with_file($fileName);
        unlink($fileName);
    }
}

run_test_with_file();
for ($i = 0; $i < 10000; $i++) {
    test_without_file_exists_no_file();
    test_with_file_exists_no_file();
}