<?php

error_reporting(0);

function getMicrotime() {
    $usec = $sec = 0;
    list($usec, $sec) = explode(' ', microtime());
    return ((float)$usec + (float)$sec);
}

$iloop = 5000; // Total Loops

$results = array(
    'Test1' => array(
        'LastStartTime' => 0,
        'LastEndTime' => 0,
        'LastUsedTime' => 0,
        'AvaTime' => 0,
        'Total' => 0
    ),

    'Test2' => array(
        'LastStartTime' => 0,
        'LastEndTime' => 0,
        'LastUsedTime' => 0,
        'AvaTime' => 0,
        'Total' => 0
    ),

    'Test3' => array(
        'LastStartTime' => 0,
        'LastEndTime' => 0,
        'LastUsedTime' => 0,
        'AvaTime' => 0,
        'Total' => 0
    ),
);

// Start testing the file_exists

for($iloop_fe = $iloop; $iloop_fe > 0; $iloop_fe--) {
    $results['Test1']['LastStartTime'] = getMicrotime();

    file_exists('./test/1.txt'); // Main function code

    $results['Test1']['LastEndTime'] = getMicrotime();

    $results['Test1']['LastUsedTime'] = $results['Test1']['LastEndTime'] - $results['Test1']['LastStartTime'];
    $results['Test1']['Total'] += $results['Test1']['LastUsedTime'];
    $results['Test1']['AvaTime'] = ($results['Test1']['LastUsedTime'] + $results['Test1']['AvaTime']) / 2;
}

for($iloop_fe = $iloop; $iloop_fe > 0; $iloop_fe--) {
    $results['Test2']['LastStartTime'] = getMicrotime();

    file_get_contents('./test/1.txt'); // Main function code

    $results['Test2']['LastEndTime'] = getMicrotime();

    $results['Test2']['LastUsedTime'] = $results['Test2']['LastEndTime'] - $results['Test2']['LastStartTime'];
    $results['Test2']['Total'] += $results['Test2']['LastUsedTime'];
    $results['Test2']['AvaTime'] = ($results['Test2']['LastUsedTime'] + $results['Test2']['AvaTime']) / 2;
}

for($iloop_fe = $iloop; $iloop_fe > 0; $iloop_fe--) {
    $results['Test3']['LastStartTime'] = getMicrotime();

    if (file_exists('./test/1.txt') && is_readable('./test/1.txt')) {
        file_get_contents('./test/1.txt'); // Main function code
    }

    $results['Test3']['LastEndTime'] = getMicrotime();

    $results['Test3']['LastUsedTime'] = $results['Test3']['LastEndTime'] - $results['Test3']['LastStartTime'];
    $results['Test3']['Total'] += $results['Test3']['LastUsedTime'];
    $results['Test3']['AvaTime'] = ($results['Test3']['LastUsedTime'] + $results['Test3']['AvaTime']) / 2;
}

print_r($results);

?>