Generate files

generate.php

<?php
/** @var string $path */
$path = 'semaphores/';
echo '<h3>Semaphores files will be created in '.$path.' folder.</h3>';
echo '<h4>Creating files :</h4>';
for ($second = 0; $second < 60; $second++){
    /** @var string $file */
    $file = 'test_201808240710'.$second.'.csv.ok';
    if ($second < 10){
        /** @var string $file */
        $file = 'test_2018082407100'.$second.'.csv.ok';
    }

    echo $file.'</br>';

    /** @var string $realFile */
    $realFile = $path.$file;
    fopen($realFile, 'w');
    /** @var  $current */
    $current = file_get_contents($realFile);
    $current .= '2018-08-24 07:10:'.$second;
    file_put_contents($realFile, $current);
}

echo '<h4>It\'s OK</h4>';