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87 lines
3.3 KiB
PHP
87 lines
3.3 KiB
PHP
<?php
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// +----------------------------------------------------------------------
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// | TOPThink [ WE CAN DO IT JUST THINK ]
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// +----------------------------------------------------------------------
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// | Copyright (c) 2011 http://topthink.com All rights reserved.
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// +----------------------------------------------------------------------
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// | Licensed ( http://www.apache.org/licenses/LICENSE-2.0 )
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// +----------------------------------------------------------------------
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// | Author: liu21st <liu21st@gmail.com>
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// +----------------------------------------------------------------------
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// $Id$
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namespace Think;
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class Input {
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// 全局过滤规则
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static $filter = NULL;
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/**
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* 获取系统变量 支持过滤和默认值
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* @access public
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* @param string $type 输入数据类型
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* @param array $args 参数 array(key,filter,default)
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* @return mixed
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*/
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static public function __callStatic($type,$args=[]) {
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switch(strtolower($type)) {
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case 'get': $input =& $_GET;break;
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case 'post': $input =& $_POST;break;
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case 'put' : parse_str(file_get_contents('php://input'), $input);break;
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case 'param' :
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switch($_SERVER['REQUEST_METHOD']) {
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case 'POST':
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$input = $_POST;
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break;
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case 'PUT':
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parse_str(file_get_contents('php://input'), $input);
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break;
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default:
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$input = $_GET;
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}
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break;
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case 'request': $input =& $_REQUEST;break;
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case 'server': $input =& $_SERVER;break;
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case 'cookie': $input =& $_COOKIE;break;
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case 'session': $input =& $_SESSION;break;
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case 'globals': $input =& $GLOBALS;break;
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default:return NULL;
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}
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// 变量全局过滤
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array_walk_recursive($input,'self::filter_exp');
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if(self::$filter) {
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$_filters = explode(',',self::$filter);
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foreach($_filters as $_filter){
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// 全局参数过滤
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array_walk_recursive($input,$_filter);
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}
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}
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if(''== $args[0]) {
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// 返回全部数据
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return $input;
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}elseif(array_key_exists($args[0],$input)) {
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$filters = isset($args[1])?$args[1]:'';
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$filters = explode(',',$filters);
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$data = $input[$args[0]];
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foreach($filters as $filter){
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if(is_callable($filter)) {
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$data = is_array($data)?array_map($filter,$data):$filter($data); // 参数过滤
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}else{
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$data = filter_var($data,is_int($filter)?$filter:filter_id($filter));
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if(false === $data) {
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return isset($args[2])?$args[2]:NULL;
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}
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}
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}
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}else{
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// 不存在指定输入
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$data = isset($args[2])?$args[2]:NULL;
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}
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return $data;
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}
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// 过滤表单中的表达式
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static private filter_exp(&$value){
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if (in_array(strtolower($value),array('exp','or'))){
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$value .= ' ';
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}
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}
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} |