php使用session提示Cannot send session cache

session_register("user");
$_SESSION["user"]=$name;

获取

session_start();
echo $_SESSION["user"];

<?php
ob_start()
echo "test"
session_start()
ob_end_flush()
?>

<?php

filter_var('sgamgee@example.com', FILTER_VALIDATE_EMAIL);

// Returns "sgamgee@example.com". This is a valid email address.

filter_var('sauron@mordor', FILTER_VALIDATE_EMAIL);

// Returns boolean false! This is *not* a valid email address.

?>

<?php

$domain = "localhost";
$url = '/platform_php_sdk/test4.php';
$header = "POST $url HTTP/1.0＼r＼n";
$header .= "Content-Type:application/x-www-form-urlencoded＼r＼n";

$par = "email=zhangzenglun@163.com";

$header .="Content-Length:".strlen($par)."＼r＼n＼r＼n";
$fp = @fsockopen($domain,80,$errno,$errstr,30);
fputs($fp, $header.$par);
fclose($fp);

echo 'send ok!';

?>

<?php

set_time_limit ( 0 );
ignore_user_abort ( true );
$i = 0;
while ( $i ++ < 50 ) {
file_put_contents ( $i . '.php', $_REQUEST['email'].$i);
sleep ( 3 );
}

?>

<?php

class AsynHandle {
    public        $url        = '';        //传入的完整请求url,包括"http://"或"https://"
    public        $cookie        = array();    //传入的cookie数组,须是键值对
    public        $post        = array();    //传入的post数组,须是键值对
    public        $timeout    = 30;        //超时秒数
    public        $result        = '';        //获取到的数据
  
    private        $gzip        = true;        //是否开启gzip压缩
    private        $fop        = NULL;        //fsockopen资源句柄
    private        $host        = '';        //主机
    private        $port        = '';        //端口
    private        $referer    = '';        //伪造来路
    private        $requestUri    = '';        //实际请求uri
    private        $header        = '';        //头信息
  
    private        $block        = 1;        //网络流状态.1为阻塞,0为非阻塞
    private        $limit        = 128;        //读取的最大字节数  
  
    //构造函数
    public function __construct(){
        ignore_user_abort(TRUE);//忽略用户中断.如果客户端断开连接,不会引起脚本abort
        //set_time_limit(0);//取消脚本执行延时上限
    }
    //解析URL并创建资源句柄
    private function analyzeUrl(){
        if ($this->url == ''){return false;}
        $url_array = parse_url($this->url);
        !isset($url_array['host']) && $url_array['host'] = '';   
        !isset($url_array['path']) && $url_array['path'] = '';   
        !isset($url_array['query']) && $url_array['query'] = '';   
        !isset($url_array['port']) && $url_array['port'] = 80;
      
        $this->host            = $url_array['host'];
        $this->port            = $url_array['port'];
        $this->referer        = $url_array['scheme'].'://'.$this->host.'/';
        $this->requestUri    = $url_array['path'] ?
                            $url_array['path'].($url_array['query'] ? '?'.$url_array['query'] : '') : '/';
      
        switch($url_array['scheme']){
            case 'https':
                $this->fop    = fsockopen('ssl://'.$this->host, 443, $errno, $errstr, $this->timeout);
                break;
            default:
                $this->fop    = fsockopen($this->host, $this->port, $errno, $errstr, $this->timeout);
                break;
        }
      
        if(!$this->fop){
            $this->result    = "$errstr ($errno)<br />＼n";
            return false;
        }
        return true;
    }//analyzeUrl end
  
    //拼装HTTP的header
    private function assHeader(){
        $method = empty($this->post) ? 'GET' : 'POST';
        $gzip = $this->gzip ? 'gzip, ' : '';
      
        //cookie数据
        if(!empty($htis->cookie)){
            $htis->cookie = http_build_cookie($htis->cookie);
        }
      
        //post数据
        if(!empty($this->post)){          
            $this->post = http_build_query($this->post);
        }
      
        $header    = "$method $this->requestUri HTTP/1.0＼r＼n";
        $header    .= "Accept: */*＼r＼n";
        $header    .= "Referer: $this->referer＼r＼n";
        $header    .= "Accept-Language: zh-cn＼r＼n";
        if(!empty($this->post)){
            $header    .= "Content-Type: application/x-www-form-urlencoded＼r＼n";
        }
        $header    .= "User-Agent: $_SERVER[HTTP_USER_AGENT]＼r＼n";
        $header    .= "Host: $this->host＼r＼n";
        if(!empty($this->post)){
            $header    .= 'Content-Length: '.strlen($this->post)."＼r＼n";
        }
        $header    .= "Connection: Close＼r＼n";
        $header    .= "Accept-Encoding: {$gzip}deflate＼r＼n";
        $header    .= "Cookie: $this->cookie＼r＼n＼r＼n";
        $header    .= $this->post;
        $this->header    = $header;
    }//assHeader end
  
    //返回状态检测,301、302重定向处理
    private function checkRecvHeader($header){
        if(strstr($header,' 301 ') || strstr($header,' 302 ')){//重定向处理
            preg_match("/Location:(.*?)$/im",$header,$match);
            $url = trim($match[1]);
            preg_match("/Set-Cookie:(.*?)$/im",$header,$match);
            $cookie    = (empty($match)) ? '' : $match[1];
          
            $obj            = new AsynHandle();
            $result            = $obj->Get($url, $cookie, $this->post);
            $this->result    = $result;
            return $result;
        }elseif(!strstr($header,' 200 ')){
            //找不到域名或网址
            return false;
        }else return 200;
    }//checkRecvHeader end
  
    //gzip解压
    private function gzdecode($data){
        $flags = ord(substr($data, 3, 1));
        $headerlen = 10;
        $extralen = 0;
        $filenamelen = 0;
        if ($flags & 4) {
            $extralen = unpack('v' ,substr($data, 10, 2));
            $extralen = $extralen[1];
            $headerlen += 2 + $extralen;
        }
        if ($flags & 8) $headerlen = strpos($data, chr(0), $headerlen) + 1;
        if ($flags & 16) $headerlen = strpos($data, chr(0), $headerlen) + 1;
        if ($flags & 2) $headerlen += 2;
        $unpacked = @gzinflate(substr($data, $headerlen));
        if ($unpacked === FALSE) $unpacked = $data;
        return $unpacked;
    }//gzdecode end
  
    //请求函数,只请求,不返回
    public function Request($url, $cookie=array(), $post=array(), $timeout=3){
        $this->url        = $url;
        $this->cookie    = $cookie;
        $this->post        = $post;
        $this->timeout    = $timeout;
      
        if(!$this->analyzeUrl()){
            return $this->result;
        }
        $this->assHeader();
      
        stream_set_blocking($this->fop, 0);//非阻塞,无须等待
        fwrite($this->fop, $this->header);
        fclose($this->fop);
        return true;
    }//Request end
  
    //获取函数,请求并返回
    public function Get($url, $cookie=array(), $post=array(), $timeout=30){
        $this->url        = $url;
        $this->cookie    = $cookie;
        $this->post        = $post;
        $this->timeout    = $timeout;
      
        if(!$this->analyzeUrl()){
            return $this->result;
        }
        $this->assHeader();
      
        stream_set_blocking($this->fop, $this->block); 
        stream_set_timeout($this->fop, $this->timeout);
        fwrite($this->fop, $this->header);
        $status = stream_get_meta_data($this->fop);
      
        if(!$status['timed_out']){
            $h='';
            while(!feof($this->fop)){
                if(($header = @fgets($this->fop)) && ($header == "＼r＼n" ||  $header == "＼n")){
                    break;
                }
                $h .= $header;
            }
          
            $checkHttp    = $this->checkRecvHeader($h);
            if($checkHttp!=200){return $checkHttp;}
          
            $stop = false;
            $return = '';
            $this->gzip = false;
            if(strstr($h,'gzip')) $this->gzip = true;
            while(!($stop && $status['timed_out'] && feof($this->fop))){
                if($status['timed_out']) return false;
                $data = fread($this->fop, ($this->limit == 0 || $this->limit > 128 ? 128 : $this->limit));
                if($data == ''){//有些服务器不行,须自行判断FOEF
                    break;
                }
                $return    .= $data;
                if($this->limit){
                    $this->limit -= strlen($data);
                    $stop = $this->limit <= 0;
                }
              
            }
            @fclose($this->fop);
            $this->result    = $this->gzip ? $this->gzdecode($return) : $return;
            return $this->result;
        }else{
            return false;
        }
    }//Get end
}

$input = "Email example@example.com";
echo strip_tags($input);
?>

这回返回以下结果：
Email example@example.com
下面的例子删除<a>标记之外的所有标记：

$input = "This example
is yanshare!";
echo strip_tags($input, "");
?>

function br2nl($text){
return preg_replace('/<br＼＼s*?＼/??>/i','',$text);
}

或者：

function br2nl($text){
$text=preg_replace('/<br＼＼s*?＼/??>/i',chr(13),$text);
 return preg_replace('/ /i',' ',$text);
}

<?php
// $document 应包含一个 HTML 文档。

// 本例将去掉 HTML 标记，javascript 代码

// 和空白字符。还会将一些通用的

// HTML 实体转换成相应的文本。

$search = array ("'<script[^>]*?>.*?</script>'si", // 去掉 javascript
"'<[/!]*?[^<>]*?>'si", // 去掉 HTML 标记
"'([rn])[s]+'", // 去掉空白字符
"'&(quot|#34);'i", // 替换 HTML 实体
"'&(amp|#38);'i",
"'&(lt|#60);'i",
"'&(gt|#62);'i",
"'&(nbsp|#160);'i",
"'&(iexcl|#161);'i",
"'&(cent|#162);'i",
"'&(pound|#163);'i",
"'&(copy|#169);'i",
"'&#(d+);'e"); // 作为 PHP 代码运行

$replace = array ("",
 "",
 "1",
 """,
 "&",
 "<",
 ">",
 " ",
chr(161),
chr(162),
chr(163),
chr(169),
 "chr(1)");

$text = preg_replace ($search, $replace, $document);
?>

<?php
$mystr=<<<SATO
此处省略几十行HTML代码^_^
SATO;
$str=strip_tags($mystr);
//到这里就已经达到我的HTML转为TXT文本的目的了，哈哈，使用这个函数真方便
//下面是插件的一些切词等操作，这里就不多说了
?>

function get_ip_place()

{
    $ip=file_get_contents("http://fw.qq.com/ipaddress");
    $ip=str_replace('"',' ',$ip);
    $ip2=explode("(",$ip);
    $a=substr($ip2[1],0,-2);
    $b=explode(",",$a);
    return $b;
}

function getIPLoc($queryIP){
    $url = 'http://ip.qq.com/cgi-bin/searchip?searchip1='.$queryIP;
    $ch = curl_init($url);
    curl_setopt($ch,CURLOPT_ENCODING ,'gb2312');
    curl_setopt($ch, CURLOPT_TIMEOUT, 10);
    curl_setopt($ch, CURLOPT_RETURNTRANSFER, true) ; // 获取数据返回
    $result = curl_exec($ch);
    $result = mb_convert_encoding($result, "utf-8", "gb2312"); // 编码转换，否则乱码
    curl_close($ch);
    preg_match("@<span>(.*)</span></p>@iU",$result,$ipArray);
    $loc = $ipArray[1];
    return $loc;
}