#php: log to file path logs/date_folder/time_file.log

<?php

logger();

function logger(){

    #Write log contents by date/time
    $content = "Log by time";
    $now = time();
    $ymd = 'logs/'.date('Y-m-d', $now);
    $template = date('H:m:s', $now)." - ".$content;
    $file_name = $ymd.'/'.date('H', $now).'.log';
    if(!is_dir($ymd)){
        mkdir($ymd, 0777, true);
    }
    $current = $template . PHP_EOL;
    $f = fopen($file_name, 'a');
    fwrite($f, $current);
    fclose($f);
    #End write log contents by date/time
}