您好我正在尝试将数据上传到我的服务器，但我的要求是如果上传的内容是一个大文件，并且如果连接断开，我们需要从它停止的地方上传相同的文件，而不是重新开始。我可以正常上传我的文件到服务器，但我无法恢复我的上传。有没有其他方法可以做到这一点？以下是我的代码。
简历.PHP
<?php
$host = "localhost";
$db_uname = "root";
$db_pass="";
$db_name = "upload";
$cont=mysql_pconnect($host,$db_uname,$db_pass) or die("Too many connection, please try later ");
mysql_select_db($db_name);
ob_clean();
if($_POST['submit'])
{
define('CHUNK_SIZE', 1024*1024); // Size (in bytes) of tiles chunk
// Read a file and display its content chunk by chunk
function readfile_chunked($filename, $retbytes = TRUE) {
mysql_query("INSERT INTO uploads(chunk) VALUES('')") or die('insert query: ' . mysql_error());
$last = mysql_insert_id();
$file = '/tmp/'.$_FILES['file']['name']; // file where it is saved after chunking
$buffer = '';
$cnt =0;
$handle = fopen($filename, 'rb');
$a=file_get_contents($filename);
$sql=mysql_fetch_array(mysql_query("select chunk from uploads where id='26'"));
$b= $sql['chunk'];
if(strcmp($a,$b)==0) // to check if file chunked in folder and database data are same
{
echo "success";
}
else
{
echo "failure";
}
//exit;
if ($handle === false) {
return false;
}
while (!feof($handle)) {
$buffer = fread($handle, CHUNK_SIZE);
// Open the file to get existing content
$current = file_get_contents($file);
// Append a new person to the file
$current .= $buffer;
// Write the contents back to the file
file_put_contents($file, $current);
mysql_query("update uploads set chunk =concat(chunk,'".mysql_real_escape_string($buffer)."') where id='$last'") or die('update query: ' . mysql_error());
ob_flush();
flush();
if ($retbytes) {
$cnt += strlen($buffer);
//echo $cnt;
}
}
$status = fclose($handle);
if ($retbytes && $status) {
//echo $cnt;
return $cnt; // return num. bytes delivered like readfile() does.
}
return $status;
}
$filename = $_FILES['file']['tmp_name'];
readfile_chunked($filename);
}
?>
<form action="resume.php" method="post"
enctype="multipart/form-data">
<input type="file" name="file" size="50" />
<br />
<input type="submit" name="submit" value="Upload File" />
</form>我可以使代码在本地主机上工作，但我在服务器上使用它时遇到问题，因为我的数据没有分块并保存在服务器上