PHP去除回车换行符与敏感html标签

$content=str_replace("n","",$content);  

echo $content;

str_replace("rn","",$str);

$content=preg_replace("/s/","",$content);  

echo $content;

function DeleteHtml($str)
{
$str = str_replace("<br/>","",$str);
$str = str_replace("\t","",$str);
$str = str_replace("\r\n","",$str);
$str = str_replace("\r","",$str);
$str = str_replace("\n","",$str);
return trim($str);

}

<?php
// $document 应包含一个 HTML 文档。
 
$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);
?>

$keyarray = array(
'12020011' => '2b70e63ffdf',
'12020017' => '20767a021'
);

foreach($keyarray as $key => $value){
    $a[]=$key;
}
print_r ($a[0]);exit;

$arrKeys = array_keys($keyarray);
print_r ($arrKeys[0]);exit;

<?php
 
if (!isset($_SERVER['PHP_AUTH_USER']) || !isset($_SERVER['PHP_AUTH_PW']) ||
        !($_SERVER['PHP_AUTH_USER'] == 'outsider' && $_SERVER['PHP_AUTH_PW'] == '123456')) {
    header('WWW-Authenticate: Basic realm="WEBSERVICE"');
    header("HTTP/1.0 401 Unauthorized");
    echo "You must enter a valid login ID and password to access this resource/n";
    die;
}
 
class test {
 
    function show($one, $two) {
        return $one + $two;
    }
 
    function user_info() {
        $user_info = array(
            'name' => 'Outsider',
            'sex' => '男',
            'email' => 'outsider@outsiderla.me',
            'tel' => '1369*******',
        );
        return json_encode($user_info);
    }
 
}
$server = new SoapServer(null, array('uri' => 'server.php', 'location' => 'http://demo.test.com/server.php'));
$server->setClass('test');
//$server->addFunction('getUserInfo');  
$server->handle();
?>

<?php
$soap = new SoapClient(null, array('location' => 'http://demo.test.com/server.php', 'uri' => 'server.php', "login" => "outsider", "password" => "123456"));
$user_info = json_decode($soap->user_info());
echo $user_info->email;
?>

<form enctype="multipart/form-data" method="post" action="upload.php">

   <input type="file" size="32" name="image_field" value="">

   <input type="submit" name="Submit" value="upload">

 </form>

$handle = new upload($_FILES['image_field']);

   if ($handle->uploaded) {

//这个判断是个安全选项，看一下这个文件真的是正规途径过来的上传文件吗。

       $handle->file_new_name_body   = 'image_resized';//给这个文件起个名字吧， 注意这个是不带扩展名的部分，如果有与之同名的文件，默认的行为是重命名。

       $handle->image_resize         = true;//我们传了一张图片，需要对它进行缩放，设置缩放属性为true

       $handle->image_x                  = 100;//缩放要有标准，这里我们以宽度为基准，宽度必须是100像素

       $handle->image_ratio_y        = true;//你也可以指定一个具体的长度数值，写法是$handle->image_y = [数值]，这里是告诉程序以宽度为基准，高度按比例缩放。

       $handle->process('/home/user/files/');//在执行这句话之前，你还可以设定更多的处理选项，比如是否对图 片进行旋转剪裁，设定好了，就用这句话来执行图片处理和上传。图片处理时会创建一个原图片的副本，不会修改原始文件，原始文件存在于php的临时文件夹 中，在linux服务器上可能是/tmp目录。这样你可以对同一张上传的图片进行多次处理，并指定上传到不同的位置。这里'/home/user /files/'指定了文件要被复制到的位置。

       if ($handle->processed) {

           echo 'image resized';

           $handle->clean();//如果文件成功上传，就清除掉这个对源文件的引用，此后将不能再对刚才上传到临时文件夹的图片进行处理和复制了。

       } else {

           echo 'error : ' . $handle->error;

       }

   }

$handle = new upload($_FILES['image_field']);

header('Content-type: ' . $handle->file_src_mime);

header("Content-Disposition:attachment; filename=".rawurlencode($handle->file_src_name).";");

   echo $handle->Process();

$handle = new upload($_FILES['image_field']);

header('Content-type: ' . $handle->file_src_mime);

echo $handle->Process();

$handle->file_new_name_body = 'new name'

$handle->file_new_name_ext = 'txt'

$handle->mime_check = true;

$handle->allowed = array('application/pdf','application/msword', 'image/*');

$handle->image_max_width = 200;

$url=http://www.111cn.net;
$contents=@file_get_contents($url);
//preg_match_all("/<p class="right forumcount">(.*?)</p>/is",$contents,$content);
preg_match_all("/<h3>(.*?)</h3>/is",$contents,$content);
print_r($content[0]);

$aContext = array(
    'http' => array(
        'proxy' => 'tcp://192.168.0.2:3128',  //这里设置你要使用的代理ip及端口号
        'request_fulluri' => true,
    ),
);
$cxContext = stream_context_create($aContext);
$sFile = file_get_contents("http://www.111cn.net", False, $cxContext);
echo $sFile;

$auth = base64_encode('LOGIN:PASSWORD');   //LOGIN:PASSWORD 这里是你的账户名及密码
$aContext = array(
    'http' => array(
        'proxy' => 'tcp://192.168.0.2:3128',  //这里设置你要使用的代理ip及端口号
        'request_fulluri' => true,
        'header' => "Proxy-Authorization: Basic $auth",
    ),
);
$cxContext = stream_context_create($aContext);
$sFile = file_get_contents(http://www.111cn.net, False, $cxContext);
echo $sFile;