Php实现无限栏目分类读取的例子

<?php
 $query = $this->db->query("SELECT * FROM category");
 $list = $query->result();
 foreach($list as $v){
 if($v->category_id == 0){//获取父栏目(等于0的都是父栏目)
 $categoryul = anchor("home/content/".$v->id,$v->category_name);
 echo "<ul>".$categoryul."</ul>";
 $listx = $this->Listx->list_id($v->id);//在根据父id显示出指定的子栏目
 foreach($listx as $vid){
 
 $category = anchor("home/content/".$vid->id,$vid ->category_name);
 echo "<li>".$category."</li>";
   }
    }
  }
?> 

上一页

$sql ="Select 字段 from 表名 where id<3 order by id desc limit 1";

下一页

$sql ="Select 字段 from 表名 where id>3 order by id asc limit 1";

/*
 上一页，下一页
 int $tag 0上一页，1下一页
 int $fid www.111Cn.net
*/
 function nextPre($tag=0,$zid,$fid)
 {
  if( $tag )
  {
   $sql ="Select 字段 from 表名 where id<$fid order by id desc limit 1";
  }
  else
  {
   $sql ="Select 字段 from 表名 where id>$fid order by id asc limit 1";
  }
  //$sql = "Select * from 表名 where order by id desc limit 0,10";
  $result =  mysql_query($sql) or die('query error');
  if( mysql_num_rows( $result ) )
  {
   $rs = mysql_fetch_array( $result );
   return "<a href="".$rs['s_url']."">".$rs['title']."</a>";
  }
  else
  {
   return '没有了';
  }
 }

<?php
session_start();
$lifeTime = 24 * 3600;
session_set_cookie_params($lifeTime);
$i = $_SESSION['vv']=$_SESSION['vv']+1;

if ($i < 2):?>

您的弹跳窗代码   

<?php endif; ?>

//过滤黑名单关键字函数
function check_($data){
 $keywords = "你是大神吗|你好|去死";
 if(preg_match("/$keywords/i",$data)){
  return;
 }else{
  return $data;
 }
 
}

<?php
function Filter_word( $str, $fileName )  
{  
    if ( !($words = file_get_contents( $fileName )) ){  
        die('file read error!');  
    }  
    $str = strtolower($str);
//var_dump($words);
$word = preg_replace("/[1,2,3] | /i", '', $words);
//$wor = substr($word,0,-1);
//$w = preg_replace("|/|i", '/', $word);
//echo "<pre>";
//var_dump($w);
//$words = "aaa|bbb|ccc|ddd|eee";
    $matched = preg_replace('/'.$word.'/i', '***', $string);
return $matched;
}  
 
$content = "<a href='#'>我要aaafsdfbbb</a>";  
if ($result = Filter_word($content, './words.txt') ){
echo $result;
    echo "替换成功 ";  
}else{  
    echo "替换失败! ";

echo __FILE__ . "<br />"; //输出 F:＼xampp＼htdocs＼wordpress＼wp-content＼plugins＼wp-smtp＼wp_smtp_admin.php
echo dirname(__FILE__) . "<br />"; //输出 F:＼xampp＼htdocs＼wordpress＼wp-content＼plugins＼wp-smtp
echo basename(__FILE__) . "<br />"; //输出 wp_smtp_admin.php二、测试wordpress自带的一些函数：//www.111cn.net

echo plugin_basename(__FILE__) . "<br />"; //输出 wp-smtp/wp_smtp_admin.php
echo dirname(plugin_basename(__FILE__)) . "<br />"; //输出 wp-smtp
echo plugin_dir_url(__FILE__) . "<br />"; //输出 http://localhost/wordpress/wp-content/plugins/wp-smtp/
echo plugin_dir_path(__FILE__) . "<br />"; //输出 F:＼xampp＼htdocs＼wordpress＼wp-content＼plugins＼wp-smtp/
echo plugins_url() . "<br />"; //输出 http://localhost/wordpress/wp-content/plugins
echo plugins_url('',__FILE__) . "<br />"; //输出 http://localhost/wordpress/wp-content/plugins/wp-smtp
echo plugins_url('/img/blq_32_32.jpg',__FILE__)  . "<br />"; //输出 http://localhost/wordpress/wp-content/plugins/wp-smtp/img/blq_32_32.jpg