php 批量保存数据与批量更新数据

if ($insert && $insertsql) {php 批量保存数据与批量更新数据
  $keystr = $valstr = $tmp = '';
  foreach($insertsql as $key => $val) {
   if ($val) {
    $keystr .= $tmp.$key;
    $valstr .= $tmp."'".addslashes($val)."'";
    $tmp = ',';
   }
  }
  if ($keystr && $valstr) {
   dbconn($dbhost,$dbuser,$dbpass,$dbname,$charset,$dbport);
   m(q("INSERT INTO $tablename ($keystr) VALUES ($valstr)") ? 'Insert new record of success' : mysql_error());
  }
 }
 if ($update && $insertsql && $base64) {
  $valstr = $tmp = '';
  foreach($insertsql as $key => $val) {
   $valstr .= $tmp.$key."='".addslashes($val)."'";
   $tmp = ',';
  }
  if ($valstr) {
   $where = base64_decode($base64);
   dbconn($dbhost,$dbuser,$dbpass,$dbname,$charset,$dbport);
   m(q("UPDATE $tablename SET $valstr WHERE $where LIMIT 1") ? 'Record updating' : mysql_error());
  }
 }

php 正则html网址代码

$pattern = "/[w-]+.(com|net|org|gov|cc|biz|info|cn)(.(cn|hk))*/";
    preg_match($pattern, $url, $matches);
    if(count($matches) > 0) {
        return $matches[0];
    }else{
        $rs = parse_url($url);
        $main_url = $rs["host"];
        if(!strcmp(long2ip(sprintf("%u",ip2long($main_url))),$main_url)) {
            return $main_url;
        }else{
            $arr = explode(".",$main_url);
            $count=count($arr);
            $endArr = array("com","net","org","3322");//com.cn  net.cn 等情况
            if (in_array($arr[$count-2],$endArr)){
                $domain = $arr[$count-3].".".$arr[$count-2].".".$arr[$count-1];
            }else{
                $domain =  $arr[$count-2].".".$arr[$count-1];
            }
            return $domain;
        }// end if(!strcmp...)
    }// end if(count...)
}// end function

foreach(array('_GET','_POST') as $_request) {
 foreach($$_request as $_key => $_value) {
  if ($_key{0} != '_') {
   if (IS_GPC) {
    $_value = s_array($_value);
   }
   $$_key = $_value;
  }
 }
}

function s_array(&$array) {
 if (is_array($array)) {
  foreach ($array as $k => $v) {
   $array[$k] = s_array($v);
  }
 } else if (is_string($array)) {
  $array = stripslashes($array);
 }
 return $array;
}

// 清除HTML代码
function html_clean($content) {
 $content = htmlspecialchars($content);
 $content = str_replace("n", "<br />", $content);
 $content = str_replace("  ", "&nbsp;&nbsp;", $content);
 $content = str_replace("t", "&nbsp;&nbsp;&nbsp;&nbsp;", $content);
 return $content;
}

共有的成员还有办法解决，例如：
class A {
static public $child;
}
A::$child = new B();

对于私有的成员似乎就没有什么干净的方法了，只能这样做：
class A {
static private $child;
static public initialize() {
self::$child = new B();
}
}
A::initialize();

php 获取系统当前路径与检查php配置参数
function getPath($mainpath, $relativepath) {
  global $dir;
  $mainpath_info           = explode('/', $mainpath);
  $relativepath_info       = explode('/', $relativepath);
  $relativepath_info_count = count($relativepath_info);
  for ($i=0; $i<$relativepath_info_count; $i++) {
   if ($relativepath_info[$i] == '.' || $relativepath_info[$i] == '') continue;
   if ($relativepath_info[$i] == '..') {
    $mainpath_info_count = count($mainpath_info);
    unset($mainpath_info[$mainpath_info_count-1]);
    continue;
   }
   $mainpath_info[count($mainpath_info)] = $relativepath_info[$i];
  } //end for
  return implode('/', $mainpath_info);
 }

 // 检查PHP配置参数
 function getphpcfg($varname) {
  switch($result = get_cfg_var($varname)) {
   case 0:
   return "No";
   break;
   case 1:
   return "Yes";
   break;
   default:
   return $result;
   break;
  }
 }