1#!/usr/bin/env php
2<?php
3if (!empty($argv[1])) {
4    $file = $argv[1];
5} else {
6    $file = __DIR__ . "/test.txt";
7}
8
9$op =
10
11$fp = fopen($file, "w");
12ftruncate($fp, 0);
13fwrite($fp, str_repeat('A', 1024));
14fwrite($fp, str_repeat('B', 1024));
15fwrite($fp, str_repeat('C', 256) . "\n");
16fclose($fp);