k1ic k1ic

中文翻译：梁山英文原文：Adam Wiggins

简介

如今，软件通常会作为一种服务来交付，它们被称为网络应用程序，或“软件即服务”（SaaS）。“十二要素应用程序”（12-Factor App）为构建如下的SaaS应用提供了方法论：

	/**
	* 获取文件类型（通过读取文件前两个字节判断文件类型）
	* @param string $path 文件绝对路径
	* @return string 文件扩展名
	*/
	public static function get_file_type ( $path = '' ) {
	$res = '';
	if ( file_exists($path) && is_readable($path) ) {
	$fh = fopen($path, 'rb');
	$bin = fread($fh, 2); //只读前两个字节

	if (!empty($_FILES)) {
	switch ($_FILES['voice']['error']) {
	case UPLOAD_ERR_OK: //上传成功
	if (!in_array(Tool_PublicPlatform::get_file_type($_FILES['voice']['tmp_name']), self::$_audioType)) {
	$res = Comm_I18n::text('ajax.publicplatform.illegal_file_type');
	} elseif ($_FILES['voice']['size'] > self::MAX_AUDIO_FILE_SIZE) {
	$res = Comm_I18n::text('ajax.publicplatform.more_than_max') . '1M...';
	} elseif ($_FILES['voice']['size'] == 0) {
	$res = Comm_I18n::text('ajax.publicplatform.file_size_0M');
	} else {

	/**
	* 将查询字符串解析为数组
	* @param string
	* @return array
	*/
	private static function _parseQueryString($query = '')
	{
	$res = array();
	$pieces = explode('&', trim($query));
	foreach ($pieces as $piece) // $piece likes 'serial=123'

	function simple_curl($url = '') {
	if (!empty($url)) {
	$ch = curl_init();
	curl_setopt($ch,CURLOPT_HEADER,0);
	curl_setopt($ch,CURLOPT_NOSIGNAL, 1);
	curl_setopt($ch,CURLOPT_URL,$url);
	curl_setopt($ch,CURLOPT_RETURNTRANSFER,1);
	$version = curl_version();
	if ($version["version"] < "7.16.2") {
	curl_setopt($ch,CURLOPT_TIMEOUT,1);

	/**
	* 判断url中的域名是域名列表中的某项或某项的子域名
	* @param string $url [必选]
	* @return bool
	*/
	public static function isDomainInListOrIsSubDomain($url = '')
	{
	$host = parse_url($url, PHP_URL_HOST);
	$blackList = array('a.com', 'b.cn', 'c.com.cn');
	return in_array($host, $blackList) \|\| self::isSubDomain($host, $blackList);

	/**
	* 重试
	* @param string $class [必选]
	* @param string $method [必选]
	* @param array $param [可选]
	* @param int $retries[可选]
	* @return array
	*/
	public static function reTry($class, $method, $param = array(), $retries = 2)
	{

	/* 判断是否为weibo.com域名下的链接
	* @return bool
	*/
	public static function isWeiboDomain($url)
	{
	if (empty($url)) return false;
	return preg_match('/^https?:\/\/([^\.]+\.){0,5}weibo\.com(\/.*)?$/i', trim($url)) > 0;
	}