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[英]File upload using php mysql and saving the filename column wise in db
[英]Upload file with PHP using a random temporary filename
我有一段代码可以使用当前文件名上传文件,除非服务器上已经有该文件名和扩展名,否则可以。 如何修改代码,使其在重命名之前使用随机的临时文件名上传代码?
这是我的代码:
if(!empty($_FILES['file']['name'])) {
copy($_FILES['file']['tmp_name'], WEB_UPLOAD."/pdf/".$_FILES['file']['name']) or die("Error uploading file.");
$ext = strtolower(substr($_FILES['file']['name'], strrpos($_FILES['file']['name'], ".")));
$filename = $url.$ext;
rename(WEB_UPLOAD."/pdf/".$_FILES['file']['name'], WEB_UPLOAD."/pdf/".$filename);
mysql_query ("UPDATE downloads SET file ='".$filename."' WHERE id = '".$insertid."'") or die (mysql_error());
}
感谢您一直以来的帮助! 皮特
//get the extension
$ext = strtolower(substr($_FILES['file']['name'], strrpos($_FILES['file']['name'], ".")));
//generate random name
$random_name = uniqid();
copy($_FILES['file']['tmp_name'], WEB_UPLOAD."/pdf/".$random_name . '.' . $ext) or die("Error uploading file.");
现在,用它做任何您想做的。 保存的文件名将是$random_name.'.'.$ext
if(!empty($_FILES['file']['name'])) {
$targetFile = time().$_FILES['file']['name'];
copy($_FILES['file']['tmp_name'], WEB_UPLOAD."/pdf/".$targetFile) or die("Error uploading file.");
$ext = strtolower(substr($_FILES['file']['name'], strrpos($_FILES['file']['name'], ".")));
$filename = $url.$ext;
rename(WEB_UPLOAD."/pdf/".$targetFile , WEB_UPLOAD."/pdf/".$filename);
mysql_query ("UPDATE downloads SET file ='".$filename."' WHERE id = '".$insertid."'") or die (mysql_error());
}
添加文件名后,当前时间戳记将使文件名唯一。
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