很多码农都有自己的个人博客,平时谢谢笔记什么的,今天我不是谈如何做博客,而是谈如何做搜索引擎优化,结合自己多年的PHP经验来实现网站自动优化。
做一个原始网站或伪原创不仅仅是整合文本。SEO优化的原始文章与添加或删除内容无关。我喜欢用火车头来实现内容爬取,然后自己写一个伪原创插件,有兴趣大家可以自己实践下。
准备撰写文章时,请务必在撰写之前考虑本文的标题和布局。本文的标题可能基于哪个标题,并且由优化程序撰写的文章也考虑添加““锚文本”或“软链接”,因为在写文章之前,这些是要注意的事情。
伪原创或原始文章必须引起用户的注意,而不是假冒作品来欺骗搜索蜘蛛。因此,高质量的文章应具有清晰的结构,清晰的主题选择,清晰的布局并根据主题撰写文章。还可以为优化人员提供时间,并为网站带来良好的优化结果。
下面是火车头伪原创插件PHP代码:
复制代码
<?php
set_time_limit(270);
error_reporting(E_ERROR | E_WARNING | E_PARSE);
define('TITLE_SEPAR', 'xxx**xxx');
// 这里的key要自己去小发猫那里注册一下。
$url = 'http://api.xiaofamao.com/api.php?json=0&v=1&key=xxxxxxx';
switch($LabelArray['PageType'])
{
case 'List'://处理列表页,只能处理html
break;
case 'Pages'://处理多页,只能处理html
break;
case 'Content'://处理默认页,只能处理html
break;
case 'Save'://只有保存时是可以处理标签值的
// 保存原文
try {
/**********************************************************************/
// 这一步用来获取伪原创文章
/**********************************************************************/
$article_src = $LabelArray['标题'] . TITLE_SEPAR . $LabelArray['内容'];
$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['内容'] = $article_new;//$new_article;//$new_article;
$LabelArray['内容'] = $new_article;//$article_src_b;//$article_new_x;//$article_new;
// $LabelArray['内容'] = $temp[1];
//$LabelArray['内容'] = $article_src;
$new_title = str_replace(array('[',']','%'), array('【','】','%'), $new_title);
#$LabelArray['标题'] = $new_title;
//$LabelArray['摘要'] = curl_request($url, array('wenzhang'=>$LabelArray['标题'].','.$LabelArray['摘要']));
}
catch (Exception $e) {
$LabelArray['标题'] .= $e->getMessage();
$LabelArray['内容'] .= $e->getMessage();
}
break;
default:
//$LabelArray['内容']=curl_request($url, array('wenzhang'=>$LabelArray['内容'] ));
}
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) {
// 优化换行符
$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 $subject;
}
}
//参数1:访问的URL,参数2:post数据(不填则为GET),参数3:提交的$cookies,参数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'); // 加载扩展
}
$curl = curl_init();
curl_setopt($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 $tag;
// 计算中文字符串长度
function utf8_strlen($string = null) {
// 将字符串分解为单元
preg_match_all("/./us", $string, $match);
// 返回单元个数
return count($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;
}
}
?>