get sticker pack from line store

line_sticker_getter.php

<?php
$b = 0;//stickerpack id
$a = file_get_contents('https://store.line.me/stickershop/product/' . $b);
preg_match_all('/https:\/\/stickershop.line-scdn.net\/stickershop\/v1\/sticker\/([1-9][0-9]*)\/ANDROID\/sticker.png/',$a,$d);
$e = count($d[1]);
if(!file_exists(dirname(__FILE__) . '/' . $b . '/')){
    mkdir(dirname(__FILE__) . '/' . $b . '/');
}
for($x=0;$x<$e;$x++) {
    file_put_contents(dirname(__FILE__) . '/' . $b . '/' . $d[1][$x] . '.png',file_get_contents($d[0][$x]),LOCK_EX);
    echo 'line_sticker_getter : ' . $d[1][$x] . ".png\n";
}