php实现大文件上传源代码
php实现大文件上传源代码
经典php实现大文件上传源代码：一个比较经典的php大文件上传源代码,可成功运行.
| function function_upload($name,$newname="",$dir="upload") { global $_FILES,$ext; $return=""; $time=time(); $upload=trim($_FILES[$name][’tmp_name’]); $upload_name=trim($_FILES[$name][’name’]); $size=trim($_FILES[$name][’size’]); if(empty($upload) or empty($upload_name) or $size==0) { return $return; } $dir.="/".date("Y-m",$time); if (is_uploaded_file($upload)) { $ext=file_extension($upload_name); if(liu_mkdir($dir)) { if($newname!="") { $newname.=".".$ext; //$newname=TIME_NOW.".".$ext; }else{ //$newname=$upload_name; $newname=$time.".".$ext; } if(move_uploaded_file($upload,$dir."/".$newname) and file_exists($dir."/".$newname)) { chmod($dir."/".$newname,0755); $return=$dir."/".$newname; } } } return $return; } function file_extension($filename) { return substr(strrchr($filename, ’.’), 1); } function liu_mkdir($dir,$mode=0777) { if(is_dir($dir)) { if(!is_writable($dir)) { @chmod($dir,$mode); } return true; } else { $oldmask = @umask(0); $partialpath = dirname($dir); if(!liu_mkdir($partialpath,$mode)) { return false; } else { return mkdir($dir,$mode); } } } |