php下传图片

php上传图片

";	if (!is_uploaded_file($_FILES["upfile"][tmp_name]))		//是否存在文件		{		echo "";		echo "";		exit;	}	$file = $_FILES["upfile"];	if ($max_file_size  alert('文件太大!');";		echo "";		exit;	}	if (!in_array($file["type"], $uptypes))		//检查文件类型		{		$message = "文件类型不符!".$file["type"];		echo "";		echo "";		exit;	}	if (!file_exists($destination_folder)) {		mkdir($destination_folder);	}	$filename = $file["tmp_name"];	$image_size = getimagesize($filename);	$pinfo = pathinfo($file["name"]);	$ftype = $pinfo['extension'];	$destination = $destination_folder . time() . "." . $ftype;	if (file_exists($destination) && $overwrite != true) {		echo "";		echo "";		exit;	}	if (!move_uploaded_file($filename, $destination)) {		echo "";		echo "";		exit;	}	$pinfo = pathinfo($destination);	$fname = $pinfo[basename];}?>

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