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PHP 安全上载文件

Jun 13, 2016 am 10:43 AM
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PHP 安全下载文件

<?phpheader ('Content-Type:text/html;Charset=utf-8');define('ROOT_PATH', dirname(__FILE__));/** * 下载文件 * @param string $file_path 绝对路径 */function downFile($file_path) {	//判断文件是否存在	$file_path = iconv('utf-8', 'gb2312', $file_path); //对可能出现的中文名称进行转码	if (!file_exists($file_path)) {		exit('文件不存在!');	}	$file_name = basename($file_path); //获取文件名称	$file_size = filesize($file_path); //获取文件大小	$fp = fopen($file_path, 'r'); //以只读的方式打开文件	header("Content-type: application/octet-stream");	header("Accept-Ranges: bytes");	header("Accept-Length: {$file_size}");	header("Content-Disposition: attachment;filename={$file_name}");	$buffer = 1024;	$file_count = 0;	//判断文件是否结束	while (!feof($fp) && ($file_size-$file_count>0)) {		$file_data = fread($fp, $buffer);		$file_count += $buffer;		echo $file_data;	}	fclose($fp); //关闭文件}downFile(ROOT_PATH . '/down/Sunset.jpg'); ?>
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说明:文件名称可以接受中文名称。文件格式为 utf-8。

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