phpcms代码学习笔记(globle.function.php)

来源：互联网发布：淘宝怎么买燕隼红隼编辑：程序博客网时间：2024/06/02 06:06

今天有事，先贴出来学习

<?php

//格式化字符串的函数，或者叫做字符串过虑
function new_htmlspecialchars($string)
{
return is_array($string) ? array_map('new_htmlspecialchars', $string) : htmlspecialchars($string, ENT_QUOTES);
}

//格式化字符串

function new_addslashes($string)
{
if(!is_array($string)) return addslashes($string);
foreach($string as $key => $val) $string[$key] = new_addslashes($val);
return $string;
}

//字符串处理

function new_stripslashes($string)
{
if(!is_array($string)) return stripslashes($string);
foreach($string as $key => $val) $string[$key] = new_stripslashes($val);
return $string;
}

//过滤js事件

function filter_xss($string, $allowedtags = '', $disabledattributes = array('onabort', 'onactivate', 'onafterprint', 'onafterupdate', 'onbeforeactivate', 'onbeforecopy', 'onbeforecut', 'onbeforedeactivate', 'onbeforeeditfocus', 'onbeforepaste', 'onbeforeprint', 'onbeforeunload', 'onbeforeupdate', 'onblur', 'onbounce', 'oncellchange', 'onchange', 'onclick', 'oncontextmenu', 'oncontrolselect', 'oncopy', 'oncut', 'ondataavaible', 'ondatasetchanged', 'ondatasetcomplete', 'ondblclick', 'ondeactivate', 'ondrag', 'ondragdrop', 'ondragend', 'ondragenter', 'ondragleave', 'ondragover', 'ondragstart', 'ondrop', 'onerror', 'onerrorupdate', 'onfilterupdate', 'onfinish', 'onfocus', 'onfocusin', 'onfocusout', 'onhelp', 'onkeydown', 'onkeypress', 'onkeyup', 'onlayoutcomplete', 'onload', 'onlosecapture', 'onmousedown', 'onmouseenter', 'onmouseleave', 'onmousemove', 'onmoveout', 'onmouseover', 'onmouseup', 'onmousewheel', 'onmove', 'onmoveend', 'onmovestart', 'onpaste', 'onpropertychange', 'onreadystatechange', 'onreset', 'onresize', 'onresizeend', 'onresizestart', 'onrowexit', 'onrowsdelete', 'onrowsinserted', 'onscroll', 'onselect', 'onselectionchange', 'onselectstart', 'onstart', 'onstop', 'onsubmit', 'onunload'))
{
if(is_array($string))
{
foreach($string as $key => $val) $string[$key] = filter_xss($val, ALLOWED_HTMLTAGS);
}
else
{
$string = preg_replace('/\s('.implode('|', $disabledattributes).').*?([\s\>])/', '\\2', preg_replace('/<(.*?)>/ie', "'<'.preg_replace(array('/javascript:[^\"\']*/i', '/(".implode('|', $disabledattributes).")[ \\t\\n]*=[ \\t\\n]*[\"\'][^\"\']*[\"\']/i', '/\s+/'), array('', '', ' '), stripslashes('\\1')) . '>'", strip_tags($string, $allowedtags)));
}
return $string;
}

//字符填充并生成填充记录

function filter_word($data = '')
{
global $PHPCMS;
$filter_word = trim($PHPCMS['filter_word']);
if(!$filter_word || (!$data && !$_GET && !$_POST)) return false;
$filter_word = array_filter(array_map('trim', explode("\n", $filter_word)));
    if(!$filter_word) return false;
$pattern = str_replace('\*', '.*', implode('|', array_map('preg_quote', $filter_word)));
$data = array2string($_REQUEST);
if($pattern && preg_match("/($pattern)/", $data, $m))
{
  $pattern_word = $m[0];
  define('ILLEGAL_WORD', $pattern_word);
  unset($m[0]);
  $word = implode(' ', $m);
  $logdata = array(TIME, IP, $word, $pattern_word);
  $logfile = PHPCMS_ROOT.'data/filterlog/'.date('Ym', TIME).'.csv';
  $fp = fopen($logfile, 'a');
  fputcsv($fp, $logdata);
  fclose($fp);
  return true;
}
return false;
}

//格式化文本域（过滤空格）

function format_textarea($string)
{
return nl2br(str_replace(' ', ' ', htmlspecialchars($string)));
}

格式化js（过滤）

function format_js($string, $isjs = 1)
{
$string = addslashes(str_replace(array("\r", "\n"), array('', ''), $string));
return $isjs ? 'document.write("'.$string.'");' : $string;
}

if(!function_exists('file_put_contents'))
{
define('FILE_APPEND', 8);
function file_put_contents($file, $data, $append = '')
{
  $mode = $append == '' ? 'wb' : 'ab';
  $fp = @fopen($file, $mode) or exit("Can not open file $file !");
  flock($fp, LOCK_EX);
  $len = @fwrite($fp, $data);
  flock($fp, LOCK_UN);
  @fclose($fp);
  return $len;
}
}

if(!function_exists('http_build_query'))
{
    function http_build_query($data, $prefix = null, $sep = '', $key = '')
{
        $ret = array();
  foreach((array)$data as $k => $v)
  {
   $k = urlencode($k);
   if(is_int($k) && $prefix != null)
   {
    $k = $prefix.$k;
   }
   if(!empty($key)) {
    $k = $key."[".$k."]";
   }
   if(is_array($v) || is_object($v))
   {
    array_push($ret,http_build_query($v,"",$sep,$k));
   }
   else
   {
    array_push($ret,$k."=".urlencode($v));
   }
  }
        if(empty($sep))
  {
            $sep = ini_get("arg_separator.output");
        }
        return implode($sep, $ret);
    }
}

if(!function_exists('image_type_to_extension'))
{
    function image_type_to_extension($type, $dot = true)
    {
        $e = array ( 1 => 'gif', 'jpeg', 'png', 'swf', 'psd', 'bmp' ,'tiff', 'tiff', 'jpc', 'jp2', 'jpf', 'jb2', 'swc', 'aiff', 'wbmp', 'xbm');
        $type = intval($type);
        if (!$type)
  {
            trigger_error( 'File Type is null...', E_USER_NOTICE );
            return null;
        }
        if(!isset($e[$type]))
  {
            trigger_error( 'Image type is wrong...', E_USER_NOTICE );
            return null;
        }
        return ($dot ? '.' : '') . $e[$type];
    }
}

if(!function_exists('array_intersect_key'))
{
function array_intersect_key($isec, $keys)
{
  $argc = func_num_args();
  if ($argc > 2)
  {
   for ($i = 1; !empty($isec) && $i < $argc; $i++)
   {
    $arr = func_get_arg($i);
    foreach (array_keys($isec) as $key)
    {
     if (!isset($arr[$key]))
     {
      unset($isec[$key]);
     }
    }
   }
   return $isec;
  }
  else
  {
   $res = array();
   foreach (array_keys($isec) as $key)
   {
    if (isset($keys[$key]))
    {
     $res[$key] = $isec[$key];
    }
   }
   return $res;
  }
}
}

if(!function_exists('json_encode'))
{
function json_encode($string)
{
  require_once 'json.class.php';
  $json = new json();
  return $json->encode($string);
}
}

if(!function_exists('json_decode'))
{
function json_decode($string,$type = 1)
{
  require_once 'json.class.php';
  $json = new json();
  return $json->decode($string,$type);
}
}

if(!function_exists('iconv'))
{

//初始化编码函数
function iconv($in_charset, $out_charset, $str)
{
  if(function_exists('mb_convert_encoding'))
  {
   return mb_convert_encoding($str, $out_charset, $in_charset);
  }
  else
  {

   require_once 'iconv.func.php';
   $in_charset = strtoupper($in_charset);
   $out_charset = strtoupper($out_charset);
   if($in_charset == 'UTF-8' && ($out_charset == 'GBK' || $out_charset == 'GB2312'))
   {
    return utf8_to_gbk($str);
   }
   if(($in_charset == 'GBK' || $in_charset == 'GB2312') && $out_charset == 'UTF-8')
   {
    return gbk_to_utf8($str);
   }
   return $str;
  }
}
}

//字符串过滤（'..', "\n", "\r"),

function stripstr($str)
{
return str_replace(array('..', "\n", "\r"), array('', '', ''), $str);
}

if(!function_exists('fputcsv'))
{

//输出cvs文件
function fputcsv(&$fp, $array, $delimiter = ',', $enclosure = '"')
{
$data = $enclosure.implode($enclosure.$delimiter.$enclosure, $array).$enclosure."\n";
return fwrite($fp, $data);
}
}

//生成随机数

function random($length, $chars = '0123456789')
{
$hash = '';
$max = strlen($chars) - 1;
for($i = 0; $i < $length; $i++)
{
$hash .= $chars[mt_rand(0, $max)];
}
return $hash;
}

//设置cookie

//读取cookie

function get_cookie($var)
{
$var = COOKIE_PRE.$var;
return isset($_COOKIE[$var]) ? $_COOKIE[$var] : false;
}

//文章生成

function content_set($contentid, $field, $data)
{
return @file_put_contents(content_file($contentid, $field), $data);
}

//文章读取

function content_get($contentid, $field)
{
return @file_get_contents(content_file($contentid, $field));
}

//文章删除

function content_del($contentid, $field)
{
return @unlink(content_file($contentid, $field));
}

//文章文件

function content_file($contentid, $field)
{
$id = str_pad($contentid, 4, '0', STR_PAD_LEFT);
return CONTENT_ROOT.$field.'/'.substr($id, 0, 2).'/'.substr($id, 2, 2).'/'.$contentid.'.txt';
}

//文章

function content_init($field)
{
@set_time_limit(300);
@mkdir(CONTENT_ROOT.$field, 0777);
for($i=1; $i<=9999; $i++)
{
  $id = str_pad($i, 4, '0', STR_PAD_LEFT);
  $dir1 = CONTENT_ROOT.$field.'/'.substr($id, 0, 2);
  $dir2 = $dir1.'/'.substr($id, 2, 2);
  @mkdir($dir1, 0777);
  @mkdir($dir2, 0777);
}
return true;
}

//菜单

function menu($parentid, $code = '')
{
global $db, $_userid, $_roleid, $_groupid;
$code = str_replace('"', '\"', $code);
$where = $parentid == 99 ? "AND userid=$_userid" : '';
$menus = $db->select("SELECT * FROM `".DB_PRE."menu` WHERE `parentid`='$parentid' $where ORDER BY `listorder`,`menuid`", 'menuid');
if($code)
{
  foreach($menus as $m)
  {
   extract($m);

//权限判断，后台权限
   if(($roleids && defined('IN_ADMIN') && !check_in($_roleid, $roleids)) || ($groupids && !defined('IN_ADMIN') && !check_in($_groupid, $groupids))) continue;
   eval("\$menu .= \"$code\";");
  }
  $menus = $menu;
}
return $menus;
}

//客户端浏览器判断

function is_ie()
{
$useragent = strtolower($_SERVER['HTTP_USER_AGENT']);
if((strpos($useragent, 'opera') !== false) || (strpos($useragent, 'konqueror') !== false)) return false;
if(strpos($useragent, 'msie ') !== false) return true;
return false;
}

//客户端判断

//日期判断

function is_date($ymd, $sep='-')
{
if(empty($ymd)) return FALSE;
list($year, $month, $day) = explode($sep, $ymd);
return checkdate($month, $day, $year);
}

//email判断

function is_email($email)
{
return strlen($email) > 6 && preg_match("/^[\w\-\.]+@[\w\-\.]+(\.\w+)+$/", $email);
}

//判断字符串是否存在

function str_exists($haystack, $needle)
{
return !(strpos($haystack, $needle) === FALSE);
}

//是否下载文件

function file_down($filepath, $filename = '')
{
if(!$filename) $filename = basename($filepath);
if(is_ie()) $filename = rawurlencode($filename);
$filetype = fileext($filename);
$filesize = sprintf("%u", filesize($filepath));
if(ob_get_length() !== false) @ob_end_clean();
header('Pragma: public');
header('Last-Modified: '.gmdate('D, d M Y H:i:s') . ' GMT');
header('Cache-Control: no-store, no-cache, must-revalidate');
header('Cache-Control: pre-check=0, post-check=0, max-age=0');
header('Content-Transfer-Encoding: binary');
header('Content-Encoding: none');
header('Content-type: '.$filetype);
header('Content-Disposition: attachment; filename="'.$filename.'"');
header('Content-length: '.$filesize);
readfile($filepath);
exit;
}

function fileext($filename)
{
return strtolower(trim(substr(strrchr($filename, '.'), 1, 10)));
}

//将id数组用 ',' 分割开来

function implodeids($array, $s = ',')
{
if(empty($array)) return '';
return is_array($array) ? implode($s, $array) : $array;
}

//提交检查

function check_submit($var)
{
if(empty($GLOBALS[$var])) return false;
if(empty($_SERVER['HTTP_REFERER'])) return true;
return strpos($_SERVER['HTTP_REFERER'], DOMAIN) === 7;
}

//id检查

function check_in($id, $ids = '', $s = ',')
{
if(!$ids) return false;
$ids = explode($s, $ids);
return is_array($id) ? array_intersect($id, $ids) : in_array($id, $ids);
}

//获取客户端ip

//获取被封ip列表

//字符串切割

//缓存开始

function cache_page_start()
{
define('CACHE_PAGE_ID', md5(RELATE_URL));
define('CACHE_PAGE_DIR', CACHE_PAGE_PATH.substr(CACHE_PAGE_ID, 0, 2).'/');
define('CACHE_PAGE_FILE', CACHE_PAGE_DIR.CACHE_PAGE_ID.'.html');
$contents = @file_get_contents(CACHE_PAGE_FILE);
if($contents && intval(substr($contents, 15, 25)) > TIME)
{
echo substr($contents, 29);
exit;
}
return true;
}

//缓存页面

function cache_page($ttl = CACHE_PAGE_TTL, $isjs = 0)
{
if($ttl == 0 || !defined('CACHE_PAGE_FILE')) return false;
$contents = ob_get_contents();
if($isjs) $contents = format_js($contents);
dir_create(CACHE_PAGE_DIR);
$contents = "\n".$contents;
file_put_contents(CACHE_PAGE_FILE, $contents);
@chmod(CACHE_PAGE_FILE, 0777);
}

//清除缓存

//会员缓存

function cache_member()
{
global $db;
$status = $db->table_status(DB_PRE.'member_cache');
if($status['Rows'] == 0)
{
  @set_time_limit(600);
  $db->query("INSERT INTO `".DB_PRE."member_cache` SELECT * FROM `".DB_PRE."member`");
  return true;
}
return false;
}

//读取缓存

function cache_read($file, $path = '', $iscachevar = 0)
{
if(!$path) $path = CACHE_PATH;
$cachefile = $path.$file;
if($iscachevar)
{
  global $TEMP;
  $key = 'cache_'.substr($file, 0, -4);
  return isset($TEMP[$key]) ? $TEMP[$key] : $TEMP[$key] = @include $cachefile;
}
return @include $cachefile;
}

//写入缓存

function cache_write($file, $array, $path = '')
{
if(!is_array($array)) return false;
$array = "<?php\nreturn ".var_export($array, true).";\n?>";
$cachefile = ($path ? $path : CACHE_PATH).$file;
$strlen = file_put_contents($cachefile, $array);
@chmod($cachefile, 0777);
return $strlen;
}

//删除缓存

function cache_delete($file, $path = '')
{
$cachefile = ($path ? $path : CACHE_PATH).$file;
return @unlink($cachefile);
}

function setting_set($tablename, $where, $setting)
{
global $db;
if(!is_array($setting)) return false;
$setting = new_stripslashes($setting);
$setting = addslashes(var_export($setting, TRUE));
return $db->query("UPDATE `$tablename` SET `setting`='$setting' WHERE $where");
}

//获取设置信息

function setting_get($tablename, $where)
{
global $db;
$r = $db->get_one("SELECT `setting` FROM `$tablename` WHERE $where LIMIT 1");
$setting = $r['setting'];
if($setting) eval("\$setting = $setting;");
else $setting = array();
return $setting;
}

//字符串转换为数组

function string2array($data)
{
if($data == '') return array();
eval("\$array = $data;");
return $array;
}

//数组转换为字符串

function array2string($data, $isformdata = 1)
{
if($data == '') return '';
if($isformdata) $data = new_stripslashes($data);
return addslashes(var_export($data, TRUE));
}

//栏目

function subcat($module = 'phpcms', $parentid = NULL, $type = NULL)
{
global $CATEGORY;
$subcat = array();
foreach($CATEGORY as $id=>$cat)
{
if($cat['module'] == $module && ($parentid === NULL || $cat['parentid'] == $parentid) && ($type === NULL || $cat['type'] == $type)) $subcat[$id] = $cat;
}
return $subcat;
}

//模型

function submodelcat($modelid = 1, $parentid = NULL, $type = NULL)
{
global $CATEGORY;
$subcat = array();
foreach($CATEGORY as $id=>$cat)
{
if($cat['modelid'] == $modelid && ($parentid === NULL || $cat['parentid'] == $parentid) && $cat['parentid'] !=0 && ($type === NULL || $cat['type'] == $type)) $subcat[$id] = $cat;
}

return $subcat;
}

//栏目url规则

function catpos($catid, $urlrule = '')
{
global $CATEGORY;
if(!isset($CATEGORY[$catid])) return '';
$pos = '';
$arrparentid = array_filter(explode(',', $CATEGORY[$catid]['arrparentid'].','.$catid));
foreach($arrparentid as $catid)
{
  if($urlrule) eval("\$url = \"$urlrule\";");
  else $url = $CATEGORY[$catid]['url'];
  $pos .= '<a href="'.$url.'">'.$CATEGORY[$catid]['catname'].'</a>';
}
return $pos;
}

//地区

function subarea($parentid = 0)
{
global $AREA;
$subarea = array();
foreach($AREA as $id=>$area)
{
if($area['parentid'] == $parentid) $subarea[$id] = $area;
}
return $subarea;
}

//地区

function areapos($areaid, $urlrule = '')
{
global $AREA;
if(!isset($AREA[$areaid])) return '';
$pos = '';
$arrparentid = array_filter(explode(',', $AREA[$areaid]['arrparentid'].','.$areaid));
foreach($arrparentid as $areaid)
{
  if($urlrule) eval("\$url = \"$urlrule\";");
  else $url = $AREA[$areaid]['url'];
  $pos .= '<a href="'.$url.'">'.$AREA[$areaid]['name'].'</a>';
}
return $pos;
}

//类型

function subtype($module = 'phpcms')
{
global $TYPE;
$subtype = array();
foreach($TYPE as $id=>$type)
{
if($type['module'] == $module) $subtype[$id] = $type;
}
return $subtype;
}

//模板调用函数

function template($module = 'phpcms', $template = 'index', $istag = 0)
{
$compiledtplfile = TPL_CACHEPATH.$module.'_'.$template.'.tpl.php';
if(TPL_REFRESH && (!file_exists($compiledtplfile) || @filemtime(TPL_ROOT.TPL_NAME.'/'.$module.'/'.$template.'.html') > @filemtime($compiledtplfile) || @filemtime(TPL_ROOT.TPL_NAME.'/tag.inc.php') > @filemtime($compiledtplfile)))
{
require_once PHPCMS_ROOT.'include/template.func.php';
template_compile($module, $template, $istag);
}
return $compiledtplfile;
}

//图片

function thumb($imgurl, $width = 100, $height = 100 ,$autocut = 1)
{
global $image;
if(empty($imgurl)) return 'images/nopic_small.gif';
if(!extension_loaded('gd') || strpos($imgurl, '://')) return $imgurl;
if(!file_exists(PHPCMS_ROOT.$imgurl)) return 'images/nopic.gif';
$newimgurl = dirname($imgurl).'/thumb_'.$width.'_'.$height.'_'.basename($imgurl);
if(file_exists($newimgurl)) return $newimgurl;
if(!is_object($image))
{
require_once 'image.class.php';
$image = new image();
}
return $image->thumb(PHPCMS_ROOT.$imgurl, PHPCMS_ROOT.$newimgurl, $width, $height, '', $autocut) ? $newimgurl : $imgurl;
}

//ssi加密

function ssi($file)
{
if(!file_exists(PHPCMS_ROOT.$file)) return false;
return (SHTML && defined('CREATEHTML')) ? '' : @file_get_contents(PHPCMS_ROOT.$file);
}

//sql获取记录

//标签函数

//模块信息

function block($pageid, $blockno)
{
echo ssi('data/block/'.$pageid.'_'.$blockno.'.html');
}

//获取栏目

function get_sql_catid($catid)
{
global $CATEGORY;
$catid = intval($catid);
if(!isset($CATEGORY[$catid])) return false;
return $CATEGORY[$catid]['child'] ? " AND `catid` IN(".$CATEGORY[$catid]['arrchildid'].") " : " AND `catid`=$catid ";
}

//获取sql

function get_sql_in($string, $s = ' ')
{
$array = array_map('trim', explode($s, $string));
$array = new_addslashes($array);
return "'".implode("','", $array)."'";
}

//获取分页信息

//分页url

function pageurl($urlrule, $page, $array = array())
{
extract($array, EXTR_SKIP);
if(strpos($urlrule, '|'))
{
$urlrules = explode('|', $urlrule);
$urlrule = $page < 2 ? $urlrules[0] : $urlrules[1];
}
eval("\$url = \"$urlrule\";");
return $url;
}

//发送消息

function showmessage($msg, $url_forward = 'goback', $ms = 1250, $direct = 0)
{
global $PHPCMS;
if($url_forward && $url_forward != 'goback' && $url_forward != 'close') $url_forward = url($url_forward, 1);
    if($direct && $url_forward && $url_forward!='goback')
    {
        ob_clean();
        header("location:$url_forward");
        exit("<script>self.location='$url_forward';</script>");
    }
include defined('IN_ADMIN') ? PHPCMS_ROOT.'admin/templates/showmessage.tpl.php' : template('phpcms','showmessage');
exit;
}

//生成静态

function createhtml($file)
{
$data = ob_get_contents();
ob_clean();
dir_create(dirname($file));
$strlen = file_put_contents($file, $data);
@chmod($file,0777);
return $strlen;
}

//键值生成

function keyid_make($module, $tablename, $titlefield, $id)
{
$keyid = $module.'-'.$tablename.'-'.$titlefield.'-'.$id;

$verify = md5($keyid.AUTH_KEY);
return array($keyid, $verify);
}

//获取键值

function keyid_get($keyid)
{
global $db;
list($module, $tablename, $titlefield, $id) = explode('-', $keyid);
$tablename = DB_PRE.$tablename;
$keyfield = $db->get_primary($tablename);
return $db->get_one("SELECT `$titlefield` AS title,`url` FROM `$tablename` WHERE `$keyfield`='$id'");
}

function keyid_verify($keyid, $verify)
{
$keyid = md5($keyid.AUTH_KEY);
return $verify == $keyid;
}

//验证码

function checkcode($checkcode, $enable = 1, $forward = '')
{
global $LANG;
if(!$enable) return true;
session_start();
if(!isset($_SESSION['checkcode'])) showmessage($LANG['do_not_refresh'], $forward);
if(strtolower($_SESSION['checkcode']) != strtolower($checkcode))
{
unset($_SESSION['checkcode']);
showmessage($LANG['checkcode_error'], $forward);
}
unset($_SESSION['checkcode']);
return true;
}

function usedtime()
{
$stime = explode(' ', MICROTIME_START);
$etime = explode(' ', microtime());
return number_format(($etime[1] + $etime[0] - $stime[1] - $stime[0]), 6);
}

//错误报告

function debug()
{
global $db;
if(!DEBUG || defined('CREATEHTML')) return false;
define('DEBUG_TIME', usedtime());
define('DEBUG_QUERIES', $db->querynum);
return true;
}

//tpl缓存

function tpl_data($module = 'phpcms', $template = 'index')
{
@extract($GLOBALS, EXTR_SKIP);
ob_start();
include template($module, $template);
$data = ob_get_contents();
ob_clean();
return $data;
}

//加载地区

function load($file, $module = 'phpcms', $dir = '', $isinit = 1)
{
global $MODULE;
if(!isset($MODULE[$module])) return false;
$path = PHPCMS_ROOT.$MODULE[$module]['path'].($dir ? $dir.'/' : 'include/').$file;
if(!(@include_once $path)) return false;
if($isinit && strpos($file, '.class.php') !== false)
{
$classname = substr($file, 0, -10);
return new $classname();
}
return true;
}

function phpcms_auth($txt, $operation = 'ENCODE', $key = '')
{
$key = $key ? $key : $GLOBALS['phpcms_auth_key'];
$txt = $operation == 'ENCODE' ? $txt : base64_decode($txt);
$len = strlen($key);
$code = '';
for($i=0; $i<strlen($txt); $i++){
$k = $i % $len;
$code .= $txt[$i] ^ $key[$k];
}
$code = $operation == 'DECODE' ? $code : base64_encode($code);
return $code;
}

function hash_string($str)
{
$str = str_pad($str, 10, 0, STR_PAD_LEFT);
$str = base64_encode($str);
$str = substr($str,-5,-3).substr($str,0,-2);
return $str;
}

function areaname($areaid)
{
global $AREA;
if(!isset($AREA[$areaid])) return '';
$pos = array();
$arrparentid = array_filter(explode(',', $AREA[$areaid]['arrparentid'].','.$areaid));
foreach($arrparentid as $areaid)
{
$pos[] = $AREA[$areaid]['name'];
}
return join('.',$pos);
}

function magic_image($txt, $fonttype = 4)
{
if(empty($txt)) return false;
if(function_exists("imagepng"))
{
$txt = phpcms_auth($txt, 'ENCODE', AUTH_KEY);
$txt = '<img src="'.PHPCMS_PATH.'magic_image.php?gd=1&fonttype='.$fonttype.'&txt='.$txt.'" align="absmiddle">';
}
return $txt;
}

}
return $txt;
}

function username($userid)
{
global $db;
$userid = intval($userid);
$r = $db->get_one("SELECT `username` FROM `".DB_PRE."member_cache` WHERE `userid`=$userid");
return $r ? $r['username'] : false;
}

function userid($username)
{
global $db;
$r = $db->get_one("SELECT `userid` FROM `".DB_PRE."member_cache` WHERE `username`='$username'");
return $r ? $r['userid'] : false;
}

function phpcms_error($errno, $errmsg, $filename, $linenum, $vars)
{
$filename = str_replace(PHPCMS_ROOT, '.', $filename);
$filename = str_replace("\\", '/', $filename);
if(!defined('E_STRICT')) define('E_STRICT', 2048);
$dt = date('Y-m-d H:i:s');
$errortype = array (
E_ERROR           => 'Error',
E_WARNING         => 'Warning',
E_PARSE           => 'Parsing Error',
E_NOTICE          => 'Notice',
E_CORE_ERROR      => 'Core Error',
E_CORE_WARNING    => 'Core Warning',
E_COMPILE_ERROR   => 'Compile Error',
E_COMPILE_WARNING => 'Compile Warning',
E_USER_ERROR      => 'User Error',
E_USER_WARNING    => 'User Warning',
E_USER_NOTICE     => 'User Notice',
E_STRICT          => 'Runtime Notice'
);
$user_errors = array(E_USER_ERROR, E_USER_WARNING, E_USER_NOTICE);
$err = "<errorentry>\n";
$err .= "\t<datetime>" . $dt . "</datetime>\n";
$err .= "\t<errornum>" . $errno . "</errornum>\n";
$err .= "\t<errortype>" . $errortype[$errno] . "</errortype>\n";
$err .= "\t<errormsg>" . $errmsg . "</errormsg>\n";
$err .= "\t<scriptname>" . $filename . "</scriptname>\n";
$err .= "\t<scriptlinenum>" . $linenum . "</scriptlinenum>\n";
if (in_array($errno, $user_errors))
{
  $err .= "\t<vartrace>" . wddx_serialize_value($vars, "Variables") . "</vartrace>\n";
}
$err .= "</errorentry>\n\n";
error_log($err, 3, PHPCMS_ROOT.'/data/php_error_log.xml');
@chmod(PHPCMS_ROOT.'/data/php_error_log.xml', 0777);
}
?>

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