火車頭采集偽原創插件PHP版實現

很多碼農都有自己的個人博客，平時謝謝筆記什么的，今天我不是談如何做博客，而是談如何做搜索引擎優化，結合自己多年的PHP經驗來實現網站自動優化。

做一個原始網站或偽原創不僅僅是整合文本。SEO優化的原始文章與添加或刪除內容無關。我喜歡用火車頭來實現內容爬取，然后自己寫一個偽原創插件，有興趣大家可以自己實踐下。

准備撰寫文章時，請務必在撰寫之前考慮本文的標題和布局。本文的標題可能基於哪個標題，並且由優化程序撰寫的文章也考慮添加““錨文本”或“軟鏈接”，因為在寫文章之前，這些是要注意的事情。

偽原創或原始文章必須引起用戶的注意，而不是假冒作品來欺騙搜索蜘蛛。因此，高質量的文章應具有清晰的結構，清晰的主題選擇，清晰的布局並根據主題撰寫文章。還可以為優化人員提供時間，並為網站帶來良好的優化結果。

下面是火車頭偽原創插件PHP代碼：

<?php
set_time_limit(270);
error_reporting(E_ERROR | E_WARNING | E_PARSE);

define('TITLE_SEPAR', 'xxx**xxx');
// 這里的key要自己去小發貓那里注冊一下。
$url = 'http://api.xiaofamao.com/api.php?json=0&v=1&key=xxxxxxx';

switch($LabelArray['PageType'])
{
    case 'List'://處理列表頁，只能處理html
        break;
    case 'Pages'://處理多頁，只能處理html
        break;
    case 'Content'://處理默認頁，只能處理html
        break;
    case 'Save'://只有保存時是可以處理標簽值的
        // 保存原文

    try {
    /**********************************************************************/
    // 這一步用來獲取偽原創文章
    /**********************************************************************/
    $article_src = $LabelArray['標題'] . TITLE_SEPAR . $LabelArray['內容'];
    $article_src_b = $article_src;
    $article_src = br2newline($article_src);

    $article_new = curl_request($url, array('wenzhang'=>$article_src));
    $article_new_x = $article_new;
    $article_new = fix_newline($article_new);

    $temp = explode(TITLE_SEPAR, $article_new);

    $new_title = $temp[0];
    $new_title = fix_title($new_title);

    /*
    $temp[1] = ltrim($temp[1], "\r\n");//
    $temp[1] = ltrim($temp[1], "\n");
    $temp[1] = ltrim($temp[1], "\r\n");//implode(PHP_EOL, $temp);
    $temp[1] = ltrim($temp[1], "\n");*/
    $new_article = $temp[1];
    $new_article = delete_newline($new_article);
//    $new_article = newline2br($new_article);
    //$new_article = remove_alt($new_article);

    //$article_new = xfm_strong_str_replace_once('<p>', '<p>'.$new_title, $new_article);
    //$LabelArray['內容'] = $article_new;//$new_article;//$new_article;
    $LabelArray['內容'] = $new_article;//$article_src_b;//$article_new_x;//$article_new;
//    $LabelArray['內容'] = $temp[1];
    //$LabelArray['內容'] = $article_src;
    $new_title = str_replace(array('[',']','％'), array('【','】','%'), $new_title);
    #$LabelArray['標題'] = $new_title;
    //$LabelArray['摘要'] = curl_request($url, array('wenzhang'=>$LabelArray['標題'].','.$LabelArray['摘要']));
    }
    catch (Exception $e) {
        $LabelArray['標題'] .= $e->getMessage();
        $LabelArray['內容'] .= $e->getMessage();
    }
        break;
    default:
        //$LabelArray['內容']=curl_request($url, array('wenzhang'=>$LabelArray['內容'] ));
}

echo serialize($LabelArray);


function remove_alt($contents) {
    $contents = preg_replace('/alt=\"(.*)\"/', '', $contents);
    return $contents;
}


function fix_title($contents) {
    $punctuation_symbol = array('。', '？', '，', '：', '；', '、', '！',
                                '.',  '?',  ',',  ':',  ';', '!');

     $contents = str_replace($punctuation_symbol, '', $contents);
    return $contents;
}

function br2newline($contents) {
    $contents = str_replace('<br>', PHP_EOL, $contents);
    $contents = str_replace('<br/>', PHP_EOL, $contents);
    $contents = str_replace('<br />', PHP_EOL, $contents);
    $contents = str_replace('<BR/>', PHP_EOL, $contents);
    $contents = str_replace('<BR>', PHP_EOL, $contents);
    $contents = str_replace('<BR />', PHP_EOL, $contents);

    return $contents;
}

function newline2br($contnets) {
    $contnets = str_replace(PHP_EOL, "<br>", $contnets);
//    $contnets = str_replace('><br><', '><', $contnets);
    $contnets = str_replace('<p><br>', '<p>', $contnets);
    return $contnets;
}


function delete_newline($contents) {
    $contents = fix_newline($contents);
//    $contents = str_replace(PHP_EOL.PHP_EOL, PHP_EOL, $contents);
//    $contents = str_replace('>'.PHP_EOL, '>', $contents);
    return $contents;
}

function reset_newline_win($contents) {
    // 優化換行符
    $contents = str_replace("\r\n", "\n", $contents);
    $contents = str_replace("\r", "\n", $contents);
    $contents = str_replace("\n", PHP_EOL, $contents);

    return $contents;
}

function fix_newline($data) {
    $data = str_replace("\r", "\n", $data);
    while(strpos($data, "\n\n") !== false) {
        $data = str_replace("\n\n", "\n", $data);
    }
    $data = str_replace("\n", PHP_EOL, $data);

    return $data;
}

function clean_contents($contents) {
//    $str = preg_replace('#<([^>\s/]+)[^>]*>#','<$1>', $contents);
//    return $str;
    $sa = new cleanHtml;  
    $sa->allow = array( 'src' );    
    $sa->exceptions = array(  
    'img' => array( 'src', 'alt' ),  
    //'a' => array( 'href', 'title' ),  
    'iframe'=>array('src','frameborder'),  
    ); 
    $str = $sa->strip( $contents );   

    return $str;
}


function xfm_strong_str_replace_once($search, $replace, $subject) {
    $firstChar = strpos($subject, $search);
    if($firstChar !== false) {
        $beforeStr = substr($subject,0,$firstChar);
        $afterStr = substr($subject, $firstChar + strlen($search));
        return $beforeStr.$replace.$afterStr;
    } else {
        return $subject;
    }
}

//參數1：訪問的URL，參數2：post數據(不填則為GET)，參數3：提交的$cookies,參數4：是否返回$cookies
function curl_request($url,$post='',$cookie='', $returnCookie=0){
    if (! extension_loaded('curl')) {
        file_exists('./ext/php_curl.dll') && dl('php_curl.dll'); // 加載擴展
    }
    
        $curl = curl_init();
        curl_setopt($curl, CURLOPT_URL, $url);
        curl_setopt($curl, CURLOPT_USERAGENT, 'Mozilla/5.0 (compatible; MSIE 10.0; Windows NT 6.1; Trident/6.0)');
    if (ini_get('open_basedir') == '' && strtolower(ini_get('safe_mode')) != 'on'){ 
        curl_setopt($curl, CURLOPT_FOLLOWLOCATION, 1);
    }
        curl_setopt($curl, CURLOPT_AUTOREFERER, 1);
        curl_setopt($curl, CURLOPT_REFERER, "http://XXX");
        if($post) {
            curl_setopt($curl, CURLOPT_POST, 1);
            curl_setopt($curl, CURLOPT_POSTFIELDS, http_build_query($post));
        }
        if($cookie) {
            curl_setopt($curl, CURLOPT_COOKIE, $cookie);
        }
        curl_setopt($curl, CURLOPT_HEADER, $returnCookie);
        curl_setopt($curl, CURLOPT_TIMEOUT, 150);
        curl_setopt($curl, CURLOPT_RETURNTRANSFER, 1);
        $data = curl_exec($curl);
        if (curl_errno($curl)) {
            return curl_error($curl);
        }
        curl_close($curl);
        if($returnCookie){
            list($header, $body) = explode("\r\n\r\n", $data, 2);
            preg_match_all("/Set\-Cookie:([^;]*);/", $header, $matches);
            $info['cookie']  = substr($matches[1][0], 1);
            $info['content'] = $body;
            return $info;
        }else{
            return $data;
        }
}

//echo $tag;
// 計算中文字符串長度
function utf8_strlen($string = null) {
// 將字符串分解為單元
preg_match_all("/./us", $string, $match);
// 返回單元個數
return count($match[0]);
}


function reg_escape( $str )  
{  
    $conversions = array( "^" => "\^", "[" => "\[", "." => "\.", "$" => "\$", "{" => "\{", "*" => "\*", "(" => "\(", "\\" => "\\\\", "/" => "\/", "+" => "\+", ")" => "\)", "|" => "\|", "?" => "\?", "<" => "\<", ">" => "\>" );  
    return strtr( $str, $conversions );  
}  
  
/** 
* Strip attribute Class 
* Remove attributes from XML elements 
* @author David (semlabs.co.uk) 
* @version 0.2.1 
*/  
  
class cleanHtml{  
      
    public $str         = '';  
    public $allow       = array();  
    public $exceptions  = array();  
    public $ignore      = array();  
      
    public function strip( $str )  
    {  
        $this->str = $str;  
          
        if( is_string( $str ) && strlen( $str ) > 0 )  
        {  
            $res = $this->findElements();  
            if( is_string( $res ) )  
                return $res;  
            $nodes = $this->findAttributes( $res );  
            $this->removeAttributes( $nodes );  
        }  
          
        return $this->str;  
    }  
      
    private function findElements()  
    {  
        # Create an array of elements with attributes  
        $nodes = array();  
        preg_match_all( "/<([^ !\/\>\n]+)([^>]*)>/i", $this->str, $elements );  
        foreach( $elements[1] as $el_key => $element )  
        {  
            if( $elements[2][$el_key] )  
            {  
                $literal = $elements[0][$el_key];  
                $element_name = $elements[1][$el_key];  
                $attributes = $elements[2][$el_key];  
                if( is_array( $this->ignore ) && !in_array( $element_name, $this->ignore ) )  
                    $nodes[] = array( 'literal' => $literal, 'name' => $element_name, 'attributes' => $attributes );  
            }  
        }  
          
        # Return the XML if there were no attributes to remove  
        if( !$nodes[0] )  
            return $this->str;  
        else  
            return $nodes;  
    }  
      
    private function findAttributes( $nodes )  
    {  
          
        # Extract attributes  
        foreach( $nodes as &$node )  
        {  
            preg_match_all( "/([^ =]+)\s*=\s*[\"|']{0,1}([^\"']*)[\"|']{0,1}/i", $node['attributes'], $attributes );  
            if( $attributes[1] )  
            {  
                foreach( $attributes[1] as $att_key => $att )  
                {  
                    $literal = $attributes[0][$att_key];  
                    $attribute_name = $attributes[1][$att_key];  
                    $value = $attributes[2][$att_key];  
                    $atts[] = array( 'literal' => $literal, 'name' => $attribute_name, 'value' => $value );  
                }  
            }  
            else  
                $node['attributes'] = null;  
              
            $node['attributes'] = $atts;  
            unset( $atts );  
        }  
          
        return $nodes;  
    }  
      
    private function removeAttributes( $nodes )  
    {  
          
        # Remove unwanted attributes  
        foreach( $nodes as $node )  
        {  
              
            # Check if node has any attributes to be kept  
            $node_name = $node['name'];  
            $new_attributes = '';  
            if( is_array( $node['attributes'] ) )  
            {  
                foreach( $node['attributes'] as $attribute )  
                {  
                    if( ( is_array( $this->allow ) && in_array( $attribute['name'], $this->allow ) ) || $this->isException( $node_name, $attribute['name'], $this->exceptions ) )  
                        $new_attributes = $this->createAttributes( $new_attributes, $attribute['name'], $attribute['value'] );  
                }  
            }  
            $replacement = ( $new_attributes ) ? "<$node_name $new_attributes>" : "<$node_name>";  
            $this->str = preg_replace( '/'. reg_escape( $node['literal'] ) .'/', $replacement, $this->str );  
        }  
          
    }  
      
    private function isException( $element_name, $attribute_name, $exceptions )  
    {  
        if( array_key_exists($element_name, $this->exceptions) )  
        {  
            if( in_array( $attribute_name, $this->exceptions[$element_name] ) )  
                return true;  
        }  
          
        return false;  
    }  
      
    private function createAttributes( $new_attributes, $name, $value )  
    {  
        if( $new_attributes )  
            $new_attributes .= " ";  
        $new_attributes .= "$name=\"$value\"";  
          
        return $new_attributes;  
    }  
  
}  

?>