php中博客日历实现代码

function calendarnew($starttime = 0) {

global $db, $tablepre, $timestamp, $site_timeoffset, $site_dateformat, $curtime;

$starttime = $starttime ? $starttime : $timestamp;

$curtime = gmdate($site_dateformat, $starttime + $timeoffset * 3600);

$pendtime = $starttime - (gmdate('j', $starttime + $timeoffset * 3600) - 1) * 86400 - ($starttime + $timeoffset * 3600) % 86400;

$pstarttime = $pendtime - gmdate('t', $pendtime + $timeoffset * 3600 - 1) * 86400;

$nstarttime = $pendtime + gmdate('t', $pendtime + $timeoffset * 3600 + 1) * 86400;

$nendtime = $nstarttime + gmdate('t', $nstarttime + $timeoffset * 3600 + 1) * 86400;

list($skip, $dim) = explode('-', gmdate('w-t', $pendtime + $timeoffset * 3600 + 1));

$rows = ceil(($skip + $dim) / 7);

$blogs = array();

$query = $db->query("SELECT dateline FROM {$tablepre}vitaitems WHERE dateline BETWEEN '$pendtime' AND '$nstarttime'");

while($blog = $db->fetch_array($query)) {

$day = gmdate('j', $blog['dateline'] + $timeoffset * 3600);

!isset($blogs[$day]) ? $blogs[$day] = array('num' => 1, 'dateline' => $blog['dateline'] - $blog['dateline'] % 86400) : $blogs[$day]['num']++;

}

$cal = '';

for($row = 0; $row < $rows; $row++) {

$cal .= '<tr align="center" class="smalltxt">';

for($col = 0; $col < 7; $col++) {

$cur = $row * 7 + $col - $skip + 1;

$curtd = $row * 7 + $col < $skip || $cur > $dim ? '&nbsp;' : $cur;

if(!isset($blogs[$cur])) {

$cal .= '<td>'.$curtd.'</td>';

} else {

$cal .= '<td><a href="blog.php?uid='.$uid.'&starttime='.$blogs[$cur]['dateline'].'&endtime='.($blogs[$cur]['dateline'] + 86400).'" title=" '.$blogs[$cur]['num'].' "><b>'.$cur.'</b></a></td>';

}

}

$cal .= '';

}

return $cal;

}

function CheckUser($C_user)

{

if (!CheckLengthBetween($C_user, 4, 20)) return false; //宽度检验

if (!ereg("^[_a-zA-Z0-9]*$", $C_user)) return false; //特殊字符检验

return true;

}

function CheckPassword($C_passwd)

{

if (!CheckLengthBetween($C_passwd, 4, 20)) return false; //宽度检测

if (!ereg("^[_a-zA-Z0-9]*$", $C_passwd)) return false; //特殊字符检测

return true;

}

function CheckTelephone($C_telephone)

{

if (!ereg("^[+]?[0-9]+([xX-][0-9]+)*$", $C_telephone)) return false;

return true;

}

< ?php

$file_contents = file_get_contents('http://www.111cn.net/');

echo $file_contents;

?>

< ?php

$ch = curl_init();

$timeout = 5;

curl_setopt ($ch, CURLOPT_URL, 'http://www.111cn.net');

curl_setopt ($ch, CURLOPT_RETURNTRANSFER, 1);

curl_setopt ($ch, CURLOPT_CONNECTTIMEOUT, $timeout);

$file_contents = curl_exec($ch);

curl_close($ch);

echo $file_contents;

?>

< ?php

function vita_get_url_content($url) {

if(function_exists('file_get_contents')) {

$file_contents = file_get_contents($url);

} else {

$ch = curl_init();

$timeout = 5;

curl_setopt ($ch, CURLOPT_URL, $url);

curl_setopt ($ch, CURLOPT_RETURNTRANSFER, 1);

curl_setopt ($ch, CURLOPT_CONNECTTIMEOUT, $timeout);

$file_contents = curl_exec($ch);

curl_close($ch);

}

return $file_contents;

}

?>

$time = date("Y-m-d H:i:s");
    $message = $message . "rn$this->sql" . "rn客户IP:$ip" . "rn时间 :$time" . "rnrn";

    $server_date = date("Y-m-d");
    $filename = $server_date . ".txt";
    $file_path = "error/" . $filename;
    $error_content = $message;
    //$error_content="错误的数据库，不可以链接";
    $file = "error"; //设置文件保存目录

    //建立文件夹
    if (!file_exists($file)) {
     if (!mkdir($file, 0777)) {
      //默认的 mode 是 0777，意味着最大可能的访问权
      die("upload files directory does not exist and creation failed");
     }
    }

    //建立txt日期文件
    if (!file_exists($file_path)) {

     //echo "建立日期文件";
     fopen($file_path, "w+");

     //首先要确定文件存在并且可写
     if (is_writable($file_path)) {
      //使用添加模式打开$filename，文件指针将会在文件的开头
      if (!$handle = fopen($file_path, 'a')) {
       echo "不能打开文件 $filename";
       exit;
      }

      //将$somecontent写入到我们打开的文件中。
      if (!fwrite($handle, $error_content)) {
       echo "不能写入到文件 $filename";
       exit;
      }

      //echo "文件 $filename 写入成功";

      echo "——错误记录被保存!";

      //关闭文件
      fclose($handle);
     } else {
      echo "文件 $filename 不可写";
     }

    } else {
     //首先要确定文件存在并且可写
     if (is_writable($file_path)) {
      //使用添加模式打开$filename，文件指针将会在文件的开头
      if (!$handle = fopen($file_path, 'a')) {
       echo "不能打开文件 $filename";
       exit;
      }

      //将$somecontent写入到我们打开的文件中。
      if (!fwrite($handle, $error_content)) {
       echo "不能写入到文件 $filename";
       exit;
      }

      //echo "文件 $filename 写入成功";
      echo "——错误记录被保存!";

      //关闭文件
      fclose($handle);
     } else {
      echo "文件 $filename 不可写";
     }
    }

   }

<?php
    //$totle为总条数,$displaypg为每页显示的条数
 function PAGEFT($totle, $displaypg = 20) {
  global $firstcount, $pagenav;
  $GLOBALS["displaypg"] = $displaypg;
  //取得当前页数
  if($_GET['page'])
     $page=$_GET['page'];
  else $page = 1;

  //取得当前页的地址
  $url_arr=parse_url($_SERVER["REQUEST_URI"]);
  $url=$url_arr['path'];

  $lastpg = ceil($totle / $displaypg); //最后页
  $page = min($lastpg, $page);        //当前页
  $prepg = $page -1;                 //上一页
  $nextpg = ($page == $lastpg ? 0 : $page +1); //下一页
  $firstcount = ($page -1) * $displaypg;      //开始位置

  //开始分页导航条代码：
  $start=$totle ? ($firstcount +1) : 0;
  $end=min($firstcount + $displaypg, $totle);
  if($start!=$end)
   $pagenav = "显示第 <B>" . $start . "</B>-<B>".$end. "</B> 条记录，共 $totle 条记录";
  else
   $pagenav = "显示第 <B>".$end."</B> 条记录,共 $totle 条记录";

  //如果只有一页则跳出函数：
  if ($lastpg <= 1)
   return TRUE;
  $pagenav .= " <a href='$url'>首页</a> ";
  if ($prepg)
   $pagenav .= " <a href='?page=$prepg'>前页</a> ";
  else
   $pagenav .= " 前页 ";
  if ($nextpg)
   $pagenav .= " <a href='?page=$nextpg'>后页</a> ";
  else
   $pagenav .= " 后页 ";
  $pagenav .= " <a href='?page=$lastpg'>尾页</a> ";

  //下拉跳转列表，循环列出所有页码：
  $pagenav .= "　到第 <select name='topage' size='1' onchange='window.location="$url?page="+this.value'>n";
  for ($i = 1; $i <= $lastpg; $i++) {
   if ($i == $page)
    $pagenav .= "<option value='$i' selected>$i</option>n";
   else
    $pagenav .= "<option value='$i'>$i</option>n";
  }
  $pagenav .= "</select> 页，共 $lastpg 页";
 }
/////////////////////////////////////往下是操作分页函数的部分////////////////////////////////////////////////
include_once('conn.php');
$result=mysql_query("SELECT * FROM `news`");
$total=mysql_num_rows($result);
PAGEFT($total,3);    //调用分页函数

$result=mysql_query("SELECT * FROM `news` limit $firstcount,$displaypg ");
while($row=mysql_fetch_array($result)){
echo "<hr><b>".$row['title']." | ".$row['content'];
}
echo "<br>".$pagenav;

?>