下载 download.php

<?php
$file = './Penguins.jpg';
$file_display_name = basename($file);
$fsize = @filesize($file);
if (!empty($fsize)) {           $start = null ; $end = $fsize - 1;if (isset($_SERVER['HTTP_RANGE']) && ($_SERVER['HTTP_RANGE'] != "") && preg_match("/^bytes=([0-9]+)-([0-9]*)$/i", $_SERVER['HTTP_RANGE'], $match) && ($match[1] < $fsize) && ($match[2] < $fsize)) {     $start = $match[1]; if (!empty($match[2]))$end = $match[2];}header("Cache-control: public"); header("Pragma: public"); if ($start === null) {header("HTTP/1.1 200 OK");header("Content-Length: $fsize");header("Accept-Ranges: bytes");} else {                  header("HTTP/1.1 206 Partial Content");     header("Content-Length: " . ($end - $start + 1));     header("Content-Ranges: bytes " . $start . "-" . $end . "/" . $fsize); }header("Content-Type: application/octet-stream"); header("Content-Disposition: attachment; filename=" . urlencode ( $file_display_name ) );ob_clean();flush();$fp = fopen($file, "rb");fseek($fp,$start);$chunk = 8192;while(($nowNum = ftell($fp)) < $end){if($nowNum >= ($end - $chunk)){$chunk = $end - $nowNum + 1;}echo fread($fp, $chunk );}fclose($fp);exit();
}else {header("HTTP/1.1 404 Not Found");header('Content-Type: text/html; charset=utf-8');
}

上传 upload.php

<?php
$file = './test.jpg';
$fsize = 0;
$start = 0;
$end = null ;
if (isset($_SERVER['HTTP_CONTENT_RANGES']) && ($_SERVER['HTTP_CONTENT_RANGES'] != "") && preg_match('/^bytes ([0-9]+)-([0-9]+)\/([0-9]+)$/i', $_SERVER['HTTP_CONTENT_RANGES'], $match) ) {$start = $match[1];if (!empty($match[2]))$end = $match[2];if (!empty($match[3]) && empty($filesize))$filesize = $match[3];
}
if (empty($filesize) && isset($_SERVER['CONTENT_LENGTH'])){$filesize = $_SERVER['CONTENT_LENGTH'];
}$fp = fopen("php://input",'rb');
if(is_resource($fp))
{$fpu = fopen($file, "wb");if ($start > 0)fseek($fpu, $start);while($data = fread($fp, 8192)){if (!empty($data))fwrite($fpu, $data);}                fclose($fpu);
}
fclose($fp);