In any of core php project this function will help you create directory structure like follow PROJECT_ROOT/uploads/1_100 PROJECT_ROOT/uploads/101_200 PROJECT_ROOT/uploads/201_300 here is how to use it below will create PROJECT_ROOT/uploads/1_100 and return its path. createDir(1, "PROJECT_ROOT/uploads/"); Where PROJECT_ROOT is the hard path of th…

create_directory.php

<?php
/**
 * Creates a directory according to given id and parent dir path 
 * @params integer $id this id will decide which directory to return or create and then return
 * @params string $parent this will decide what is the path of the directory.
 */
function createDir($id, $parent)
{
    $nd_dirlimit = 100;
    $mod = ceil($id / $nd_dirlimit) - 1;

    $dirs = $mod * $nd_dirlimit + 1;
    $dire = $dirs + $nd_dirlimit - 1;

    $tempDir = $dirs.'_'.$dire;

    if(!is_dir($parent.'/'.$tempDir))
        mkdir($parent.'/'.$tempDir,0775);

    return $tempDir;
}