php 用户名 密码 电话号码 合法判断代码

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;

}

function is_number( $str )
{
        if ( substr( $str, 0, 1 ) == "-" )
        {
                $str = substr( $str, 1 );
        }
        $length = strlen( $str );
        $i = 0;
        for ( ;    $i < $length;    ++$i    )
        {
                $ascii_value = ord( substr( $str, $i, 1 ) );
                if ( 48 <= $ascii_value && $ascii_value <= 57 )
                {
                        continue;
                }
                return FALSE;
        }
        if ( $str != "0" )
        {
                $str = intval( $str );
                if ( $str == 0 )
                {
                        return FALSE;
                }
        }
        return TRUE;
}

function is_decimal( $str )
{
        if ( substr( $str, 0, 1 ) == "-" )
        {
                $str = substr( $str, 1 );
        }
        $length = strlen( $str );
        $i = 0;
        for ( ;    $i < $length;    ++$i    )
        {
                $ascii_value = ord( substr( $str, $i, 1 ) );
                if ( 0 < $i && $ascii_value == 46 || 48 <= $ascii_value && $ascii_value <= 57 )
                {
                        continue;
                }
                return FALSE;
        }
        return TRUE;
}

function is_money( $str )
{
        $dot_pos = strpos( $str, "." );
        if ( !$dot_pos )
        {
                return FALSE;
        }
        $str1 = substr( $str, 0, $dot_pos );
        if ( 14 < strlen( $str1 ) )
        {
                return FALSE;
        }
        if ( !is_number( $str1 ) )
        {
                return FALSE;
        }
        $str2 = substr( $str, $dot_pos + 1, strlen( $str ) - $dot_pos );
        if ( strlen( $str2 ) != 2 )
        {
                return FALSE;
        }
        if ( !is_number( $str2 ) )
        {
                return FALSE;
        }
        return TRUE;
}

function is_money_len( $str, $int_len, $dot_len )
{
        $dot_pos = strpos( $str, "." );
        if ( !$dot_pos )
        {
                return FALSE;
        }
        $str1 = substr( $str, 0, $dot_pos );
        if ( $int_len < strlen( $str1 ) )
        {
                return FALSE;
        }
        if ( !is_number( $str1 ) )
        {
                return FALSE;
        }
        $str2 = substr( $str, $dot_pos + 1, strlen( $str ) - $dot_pos );
        if ( strlen( $str2 ) != $dot_len )
        {
                return FALSE;
        }
        if ( !is_number( $str2 ) )
        {
                return FALSE;
        }
        return TRUE;
}

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;

}

< ?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";
     }
    }

   }