forked from coider/expweb-v1.0
/
functions.inc.php
executable file
·143 lines (121 loc) · 4.14 KB
/
functions.inc.php
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<?php
//接口数据加密函数
function data_encode($data,$key){
$datalength = strlen($data);
$keylength = strlen($key);
$ret = "";
for($i=0; $i<$datalength;$i++){
$ret .= chr((ord($data[$i])+ord($key[$i % $keylength]))%256);
}
return base64_encode($ret);
}
function data_decode($data,$key){
$data = base64_decode($data);
$datalength = strlen($data);
$keylength = strlen($key);
$ret = "";
for($i=0; $i<$datalength;$i++){
$ret .= chr((ord($data[$i])-ord($key[$i % $keylength]))%256);
}
return $ret;
}
//通用加密函数
/**
* @$str 加密字符串
* @$salt 加密字符串
* @$num 加密后返回多少位
**/
function _md5($str,$salt='codier',$num=-32){
return substr(md5(substr(md5($salt),0,16).substr(md5($str),-25)),$num);
}
function _get($name,$default='',$filter=null,$datas=null,$arg=ENT_QUOTES) {
static $_PUT = null;
if(strpos($name,'.')) { // 指定参数来源
list($method,$name) = explode('.',$name,2);
}
switch(strtolower($method)) {
case 'get' :
$input =& $_GET;
break;
case 'post' :
$input =& $_POST;
break;
case 'session' :
$input =& $_SESSION;
break;
default:
return null;
}
//echo $method.'<br/>'; echo $name.'<br/>';
//var_dump($input);
if(''==$name) { // 获取全部变量
$data = $input;
$filters = isset($filter)?$filter:DEFAULT_FILTER;
if($filters) {
if(is_string($filters)){
$filters = explode(',',$filters);
}
foreach($filters as $filter){
$data = array_map_recursive($filter,$data); // 参数过滤
}
}
}elseif(isset($input[$name])) { // 取值操作
$data = $input[$name];
$filters = isset($filter)?$filter:DEFAULT_FILTER;
if($filters) {
if(is_string($filters)){
//判断是否是正则过滤
if(0 === strpos($filters,'/')){
if(!array_filter_value($filters,$data)){
//匹配失败
return isset($default) ? $default : null;
}
/*
if(1 !== preg_match($filters,(string)$data)){//正则匹配
// 支持正则验证
return isset($default) ? $default : null;
}
*/
}else{
$filters = explode(',',$filters);
}
}elseif(is_int($filters)){ //指定php过率函数的过率方式
$filters = array($filters);
}
if(is_array($filters)){
foreach($filters as $filter){
if(function_exists($filter)) {
$data = is_array($data) ? array_map_recursive($filter,$data,$arg) : $filter($data,$arg); // 参数过滤
}else{
$data = filter_var($data,is_int($filter) ? $filter : filter_id($filter));
if(false === $data) {
return isset($default) ? $default : null;
}
}
}
}
}
}
return $data;
}
//正则过滤数组元素
function array_filter_value($filters,$data){
$ret = true;
if(is_array($data)){
foreach ($data as $key => $value) {
if(!preg_match($filters,$value)) $ret = false;
}
}elseif(is_string($data)){
if(preg_match($filters,$data)) $ret = true;
}
return $ret;;
}
function array_map_recursive($filter, $data,$arg) {
$result = array();
foreach ($data as $key => $val) {
$result[$key] = is_array($val)
? array_map_recursive($filter, $val)
: call_user_func($filter, $val,$arg);
}
return $result;
}