php递归方法实现无限分类实例

$items = array(
 array('id' => 1, 'pid' => 0, 'name' => '一级11' ),
 array('id' => 11, 'pid' => 0, 'name' => '一级12' ),
 array('id' => 2, 'pid' => 1, 'name' => '二级21' ),
 array('id' => 10, 'pid' => 11, 'name' => '二级22' ),
 array('id' => 3, 'pid' => 1, 'name' => '二级23' ),
 array('id' => 12, 'pid' => 11, 'name' => '二级24' ),
 array('id' => 13, 'pid' => 12, 'name' => '三级31' ),
 array('id' => 9, 'pid' => 1, 'name' => '二级25' ),
);

function formatTree($array, $pid = 0){
 $arr = array();
 $tem = array();
 foreach ($array as $v) {
  if ($v['pid'] == $pid) {
   $tem = formatTree($array, $v['id']);
                        //判断是否存在子数组
   $tem && $v['son'] = $tem;
   $arr[] = $v;
  }
 }
 return $arr;
}

<?php
class ApipostAction extends Action{
/**
* 模拟post进行url请求
* @param string $url
* @param string $param
*/
private $_appkeys = ‘**********************’;
private $_masterSecret = ‘**********************’;

function request_post($url = ”, $param = ”) {
if (empty($url) || empty($param)) {
return false;
}
$postUrl = $url;
$curlPost = $param;
$ch = curl_init();//初始化curl
curl_setopt($ch, CURLOPT_URL,$postUrl);//抓取指定网页
curl_setopt($ch, CURLOPT_HEADER, 0);//设置header
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);//要求结果为字符串且输出到屏幕上
curl_setopt($ch, CURLOPT_POST, 1);//post提交方式
curl_setopt($ch, CURLOPT_POSTFIELDS, $curlPost);
$data = curl_exec($ch);//运行curl
curl_close($ch);
return $data;
}
/**
* 发送
* @param int $sendno 发送编号。由开发者自己维护，标识一次发送请求
* @param int $receiver_type 接收者类型。1、指定的 IMEI。此时必须指定 appKeys。2、指定的 tag。3、指定的 alias。4、 对指定 appkey 的所有用户推送消息。* @param string $receiver_value 发送范围值，与 receiver_type相对应。 1、IMEI只支持一个 2、tag 支持多个，使用 “,” 间隔。 3、alias 支持多个，使用 “,” 间隔。 4、不需要填
* @param int $msg_type 发送消息的类型：1、通知 2、自定义消息
* @param string $msg_content 发送消息的内容。 与 msg_type 相对应的值
* @param string $platform 目标用户终端手机的平台类型，如： android, ios 多个请使用逗号分隔
*/
function send($sendno = 0,$receiver_type = 1, $receiver_value = ”, $msg_type = 1, $msg_content = ”, $platform = ‘android’) {
$url = ‘http://api.jpush.cn:8800/sendmsg/v2/sendmsg’;
$param = ”;
$param .= ‘&sendno=’.$sendno;
$appkeys = $this->_appkeys;
$param .= ‘&app_key=’.$appkeys;
$param .= ‘&receiver_type=’.$receiver_type;
$param .= ‘&receiver_value=’.$receiver_value;
$masterSecret = $this->_masterSecret;
$verification_code = md5($sendno.$receiver_type.$receiver_value.$masterSecret);
$param .= ‘&verification_code=’.$verification_code;
$param .= ‘&msg_type=’.$msg_type;
$param .= ‘&msg_content=’.$msg_content;
$param .= ‘&platform=’.$platform;
$res = $this->request_post($url, $param);

$res_arr = json_decode($res, true);
if (intval($res_arr['errcode'])!=0){
return false;
}else{
return true;
}
/*if ($res === false) {
return false;
}
$res_arr = json_decode($res, true);
$res_arr['errmsg']= “没有错误信息”;
switch (intval($res_arr['errcode'])) {
case 0:$res_arr['errmsg'] = ‘发送成功’;   break;
case 10:$res_arr['errmsg'] = ‘系统内部错误’;break;
case 1001:$res_arr['errmsg'] = ‘只支持 HTTP Post 方法，不支持 Get 方法’;break;
case 1002:$res_arr['errmsg'] = ‘缺少了必须的参数’;break;
case 1003:$res_arr['errmsg'] = ‘参数值不合法’;break;
case 1004:$res_arr['errmsg'] = ‘验证失败’;break;
case 1005:$res_arr['errmsg'] = ‘消息体太大’;break;
case 1007:$res_arr['errmsg'] = ‘receiver_value 参数 非法’;break;
case 1008:$res_arr['errmsg'] = ‘appkey参数非法’;break;
case 1010:$res_arr['errmsg'] = ‘msg_content 不合法’;break;
case 1011:$res_arr['errmsg'] = ‘没有满足条件的推送目标’;break;
case 1012:$res_arr['errmsg'] = ‘iOS 不支持推送自定义消息。只有 Android 支持推送自定义消息’;break;
default:break;
}
$msg_content = json_decode($msg_content,true);
if (intval($res_arr['errcode'])==0){
$str= “<li>第”.$res_arr['sendno'].”条发送”.$res_arr['errmsg'].”！</li>”;
}else{
$str= “<li>第”.$res_arr['sendno'].”条发送失败：”.$res_arr['errmsg'].”</li>”;
}
print_r($str);die();*/
}
}
?>

调用
<?php
$receiver_value = 1;//接收者id和n_builder_id相同
$platform = ‘android,ios’;//在上面手机上接收
$msg_content = json_encode(array(‘n_builder_id’=>’1′, ‘n_title’=>’标题’, ‘n_content’=>’内容’,'n_extras’=>array(‘fromer’=>’发送者’,'fromer_name’=>’发送者名字’,'fromer_icon’=>’发送者头像’,'image’=>’发送图片链接’,'sound’=>’发送音乐链接’)));
$this->send($sendno,3,$receiver_value,1,$msg_content,$platform);
?>

<?php
$dir = opendir('1');
$ml = 0;
while (($file = readdir($dir)) !== false)
  { $cs = $ml++;
 if($cs == "2"){echo "有文件";}
  }
  closedir($dir);
 ?>

<?php

function is_empty_dir($dir_path)
{
if (!is_dir($dir_path)){
echo “文件夹不存在”;
return true;//www.111cn.Net
}

$dir = opendir($dir_path);

$is_empty = true;

while ($file = readdir($dir)){

if($file == ‘.’ || $file == ‘..’) continue;

$is_empty = false;

break;

}

closedir($dir);

return $is_empty;

}

?>

<?php
$root = dirname(__FILE__);
$root = str_replace("\", "/", $root);
$path = $root.'/test/';

$isempty = file_exit();

//检查目录是否为空
function file_exit($filelastname = ''){

global $path;
if($filelastname != ''){
   $handle = opendir($path.$filelastname);
}else{
   $handle = opendir($path);
}
while (false !== ($file = readdir($handle))) {
   if($file == '.' || $file == '..'){
    continue;
   }
   $file_array[] = $file;
}
if($file_array == NULL){//没有文件
   closedir($handle);
   return false;
}
closedir($handle);
return true;//有文件
}
?>

$allow_ip = array("192.168.1.1","210.10.2.1-20","222.34.4.*","127.0.0.1");
 
$oBlock_ip = new allowIp($allow_ip);
if( !$oBlock_ip->checkIP() ){
  echo '您的IP为:';
  echo $oBlock_ip->ip;
  exit('禁止访问');
}

class allowIp {
 
    function __construct($allow_ip){
        if (empty($allow_ip)) {
          return false;
        }
        $this->allow_ip = $allow_ip;
        $this->ip = '';
 
    }
 
    private function makePregIP($str)
    { 
        if (strstr($str,"-")) {
 
            $aIP = explode(".",$str);
 
            foreach ($aIP as $k=>$v) {
                if (!strstr($v,"-")) {
                    $preg_limit .= $this->makePregIP($v);
                    $preg_limit .= ".";
                } else{
                    $aipNum = explode("-",$v);
                    for($i=$aipNum[0];$i<=$aipNum[1];$i++){
                        $preg .=$preg?"|".$i:"[".$i;
                    }
                    $preg_limit .=strrpos($preg_limit,".",1)==(strlen($preg_limit)-1)?$preg."]":".".$preg."]";
                }
            }
        }
        else {
            $preg_limit = $str;
        }
 
        return $preg_limit;
    }
 
    private function getAllBlockIP(){
        if ($this->allow_ip) {
            $i = 1;
            foreach ($this->allow_ip as $k=>$v) {
                $ipaddres = $this->makePregIP($v);
 
                $ip = str_ireplace(".",".",$ipaddres);
                $ip = str_replace("*","[0-9]{1,3}",$ip);
                $ipaddres = "/".$ip."/";
                $ip_list[] = $ipaddres;
                $i++;
            }
        }
        return $ip_list;
    }
 
    public function checkIP() {
        $iptable = $this->getAllBlockIP();
        $IsJoined = false;
        //取得用户ip
        $Ip = $this->get_client_ip();
        $Ip = trim($Ip);
        //在白名单中
        if ($iptable) {
            foreach($iptable as $value) {
                if (preg_match("{$value}",$Ip)) {
                    $IsJoined = true;
                    break;
                }
            }
        }
        //不在白名单中
        if( !$IsJoined ){
            return false;
        }
        return true; 
    }
 
    private function get_client_ip(){
        if (getenv("HTTP_CLIENT_IP") && strcasecmp(getenv("HTTP_CLIENT_IP"), "unknown"))
            $ip = getenv("HTTP_CLIENT_IP");
        else if (getenv("HTTP_X_FORWARDED_FOR") && strcasecmp(getenv("HTTP_X_FORWARDED_FOR"), "unknown"))
            $ip = getenv("HTTP_X_FORWARDED_FOR");
        else if (getenv("REMOTE_ADDR") && strcasecmp(getenv("REMOTE_ADDR"), "unknown"))
            $ip = getenv("REMOTE_ADDR");
        else if (isset($_SERVER['REMOTE_ADDR']) && $_SERVER['REMOTE_ADDR'] && strcasecmp($_SERVER['REMOTE_ADDR'], "unknown"))
            $ip = $_SERVER['REMOTE_ADDR'];
        else
            $ip = "unknown";
        $this->ip = $ip;
        return($ip);
   }
}

<?php
/**
 * 百度基础类
 * @author  qaulau@hotmail.com
 * @file    baidu.php
 * @date    2013-6-2  www.111cn.net

*/

class baidu{

 private $cookie = '';  
 private $username = '';
 private $password = '';
 const COOKIE_DIR = 'temp';   //cookie存放目录
 const COOKIE_VALIDATE = 604800; //cookie有效期,默认为7天
 const SECRET_KEY = 'hAFS6as8askNBVSuiealkkw'; //密钥用于加密cookie文件名，防止保存的cookie路径被猜测

 private function http_request($url, $post_data, $referef,$header = true){
  $ch = curl_init();
  curl_setopt($ch, CURLOPT_URL, $url);

  if ($post_data != ""){
   curl_setopt($ch, CURLOPT_POST, 1);
   curl_setopt($ch, CURLOPT_POSTFIELDS, $post_data);
  }

  if ($referef != ""){
   curl_setopt($ch, CURLOPT_REFERER, $referef);
  }

  curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
  curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, 0);
  curl_setopt($ch, CURLOPT_HEADER, $header);
  curl_setopt($ch, CURLOPT_USERAGENT, "Mozilla/5.0 (Windows NT 6.1) AppleWebKit/537.31 (KHTML, like Gecko) Chrome/26.0.1410.64 Safari/537.31");

  if ($this->cookie != ""){
   curl_setopt($ch, CURLOPT_COOKIE, $this->cookie);
  }
  $data = curl_exec($ch);
  curl_close($ch);

  if ($header){
   preg_match_all('/Set-Cookie:((.+)=(.+))$/m ', $data, $cookies);
   if(is_array($cookies) && count($cookies) > 1 && count($cookies[1]) > 0){
    foreach($cookies[1] as $i => $k){
     $cookieinfos = explode(";", $k);
     if(is_array($cookieinfos) && count($cookieinfos) > 1){
      $this->cookie .= $cookieinfos[0];
      $this->cookie .= "; ";
     }
    }
   }
  }
  return $data;
 }

 private function login(){
  //生成一个cookie
  $ret = $this->http_request("https://passport.baidu.com/v2/api/?getapi&class=login&tpl=mn&tangram=true", "", "");

  //获取token并保存cookie
  $ret = $this->http_request("https://passport.baidu.com/v2/api/?getapi&class=login&tpl=mn&tangram=true", "", "");
  preg_match_all('/login_token='(.+)'/', $ret, $tokens);
  $login_token = $tokens[1][0];

  //登陆并保存cookie
  $post_data = array();
  $post_data['username'] = $this->username;
  $post_data['password'] = $this->password;
  $post_data['token'] = $login_token;
  $post_data['charset'] = "UTF-8";
  $post_data['callback'] = "parent.bd12Pass.api.login._postCallback";
  $post_data['index'] = "0";
  $post_data['isPhone'] = "false";
  $post_data['mem_pass'] = "on";
  $post_data['loginType'] = "1";
  $post_data['safeflg'] = "0";
  $post_data['staticpage'] = "https://passport.baidu.com/v2Jump.html";
  $post_data['tpl'] = "mn";
  $post_data['u'] = "http://www.baidu.com/";
  $post_data['verifycode'] = "";

  $ret = $this->http_request("http://passport.baidu.com/v2/api/?login", $post_data, "https://passport.baidu.com/v2/?login&tpl=mn&u=http%3A%2F%2Fwww.baidu.com%2F");

  //记录下所有cookie
  $this->writeCookie();  
 }

 private function writeCookie(){
  if(!file_exists(self::COOKIE_DIR)){
   @mkdir(self::COOKIE_DIR) && touch(self::COOKIE_DIR.'/index.html');
  }
  $filename = self::COOKIE_DIR.'/'.md5($this->username.self::SECRET_KEY);
  file_put_contents($filename, $this->cookie);
 }

 public function baidu($username,$password){
  $this->username = $username;
  $this->password = $password;
  $filename = self::COOKIE_DIR.'/'.md5($this->username.self::SECRET_KEY);
  if ((@filemtime($filename)+ self::COOKIE_VALIDATE > time()) && ($cookie = file_get_contents($filename))!= ''){
  //如果cookie在有效期内且不为空
   $this->cookie = $cookie;
  }else {
   $this->login();
  }
 }

 /** www.111Cn.net
  * 请求页面
  * @param string $url  ：页面地址
  * @param string $referef ：引用页面
  * @param string $post_data ：post数据,如果填写则为post方式否则为get方式
  * 返回页面数据
  */
 public function request($url,$referef = '',$post_data = ''){
  return $this->http_request($url,$referef,$post_data,false);
 }

}

$baidu = new baidu('用户名','密码');
$data = $baidu->request('http://pan.baidu.com/api/list?channel=chunlei&clienttype=0&web=1&num=100&page=1&dir=%2F','http://pan.baidu.com');
echo $data;