我找到了一个合适的脚本，可以让我将多个图像文件上传到服务器。我想要做的只是更改文件的名称并且不知道我将如何使用此代码来做到这一点。有人可以告诉我我需要做什么吗？谢谢
<?php
/*
*
* @ Multiple File upload script.
*
* @ Can do any number of file uploads
* @ Just set the variables below and away you go
*
* @ Author: Kevin Waterson
*
* @copywrite 2008 PHPRO.ORG
*
*/
error_reporting(E_ALL);
/*** the upload directory ***/
$upload_dir= './uploads';
/*** numver of files to upload ***/
$num_uploads = 1;
/*** maximum filesize allowed in bytes ***/
$max_file_size = 99951200;
/*** the maximum filesize from php.ini ***/
$ini_max = str_replace('M', '', ini_get('upload_max_filesize'));
$upload_max = $ini_max * 9991024;
/*** a message for users ***/
$msg = 'Please select files for uploading';
/*** an array to hold messages ***/
$messages = array();
/*** check if a file has been submitted ***/
if(isset($_FILES['userfile']['tmp_name']))
{
/** loop through the array of files ***/
for($i=0; $i < count($_FILES['userfile']['tmp_name']);$i++)
{
// check if there is a file in the array
if(!is_uploaded_file($_FILES['userfile']['tmp_name'][$i]))
{
$messages[] = 'No file uploaded';
}
/*** check if the file is less then the max php.ini size ***/
elseif($_FILES['userfile']['size'][$i] > $upload_max)
{
$messages[] = "File size exceeds $upload_max php.ini limit";
}
// check the file is less than the maximum file size
elseif($_FILES['userfile']['size'][$i] > $max_file_size)
{
$messages[] = "File size exceeds $max_file_size limit";
}
else
{
// copy the file to the specified dir
if(@copy($_FILES['userfile']['tmp_name'][$i],$upload_dir.'/'.$_FILES['userfile']['name'][$i]))
{
/*** give praise and thanks to the php gods ***/
$messages[] = $_FILES['userfile']['name'][$i].' uploaded';
}
else
{
/*** an error message ***/
$messages[] = 'Uploading '.$_FILES['userfile']['name'][$i].' Failed';
}
}
}
}
?>