search
Homephp教程php手册很好用的PHP数据库类

很好用的PHP数据库类

Jun 13, 2016 pm 12:23 PM
phpthreecodecopyoperatedatabaseuseofkindsurface

复制代码 代码如下:



//很好用的PHP数据库类,三、四句代码搞定一个表的操作,无论这个表字段有多复杂。
//此类多次大量用在大型网站程序的开发上,效果特别的好。
//作者:快刀浪子++ 
define(\"_PHP_RECORD_\",\"exists\");
class TRecord
{
var $db;
var $rc;
var $name;
var $value;
var $num;
var $buffer;   //查询结果 调用方法 $buffer[$i][\"fields\"];
var $seekstr;   //保存查询条件用
function TRecord($host=\"localhost\",$user=\"root\",$passwd=\"\")
{global $HTTP_POST_VARS;
$this->num=0;
$this->host=$host;
$this->user=$user;
$this->passwd=$passwd;
if(($this->db=mysql_connect($host,$user,$passwd))==false)
exit(\"联结数据库出错!\");
  while(list($this->name[$this->num],$this->value[$this->num])=each($HTTP_POST_VARS))
{$this->num++;
}
//////////////
for($i=0;$inum;$i++)
{$this->value[$i]=$this->SafeString($this->value[$i]);
}
//
}
function SafeString($message)
{$message=str_replace(\" \",\" \",$message);
$message=str_replace(\"$message=str_replace(\">\",\">\",$message);
//$message=str_replace(\"|\",\"|\",$message);
//$message=str_replace(\"\\"\",\""\",$message);
//$message=nl2br($message);
return $message;
}
//////
function reset()
{$this->num=0;
$this->name=array();
   $this->value=array();
}
function add($name,$values)
{$this->name[$this->num]=$name;
   $this->value[$this->num]=$values;
$this->num++;
}
function unadd($name)
{$j=0;
for($i=0;$inum;$i++)
{if($this->name[$i]!=$name)
{$aaa[$j]=$this->name[$i];
$bbb[$j]=$this->value[$i];
$j++;
}
}
$this->name=$aaa;
$this->value=$bbb;
$this->num=$j;
}
function InsertRecord($database,$table)
{mysql_select_db($database);
if($this->num==0)
exit(\"没有定义变量!\");
$field=implode(\",\",$this->name);
for($i=0;$inum;$i++)
{if(is_string($this->value[$i]))
$ls[$i]=\"\'\".$this->value[$i].\"\'\";
 else
$ls[$i]=$this->value[$i];
     $value=implode(\",\",$ls);  
}
$sql=sprintf(\"insert into %s(%s) values(%s)\",$table,$field,$value);
if(mysql_query($sql,$this->db)==false)
{echo \"写数据到数据库时出错:\".$sql;
exit();
}
}
function SelectRecord($database,$table) //返回记录数,结果在缓冲区中
{mysql_select_db($database);
    if($this->num==0)
$sql=sprintf(\"select * from %s\",$table);
 else
{
for($i=0;$inum;$i++)
{if(is_string($this->value[$i]))
$ls[$i]=\"\'\".$this->value[$i].\"\'\";
   else
$ls[$i]=$this->value[$i];
$str[$i]=sprintf(\"%s=%s\",$this->name[$i],$ls[$i]);
}
$string=implode(\" and \",$str);
$this->seekstr=$string;
$sql=sprintf(\"select * from %s where %s\",$table,$string);
}
if(($rc=mysql_query($sql,$this->db))==false)
{echo \"查询数据库时出错:\".$sql;
exit();
}
$i=0;
while($this->buffer[$i]=mysql_fetch_array($rc))
{
$i++;
}
mysql_free_result($rc);
return $i;
}
function UpdateRecord($database,$table,$limitstr)
{mysql_select_db($database);
if($this->num==0)
exit(\"没有定义变量!\");
for($i=0;$inum;$i++)
{if(is_string($this->value[$i]))
$ls[$i]=\"\'\".$this->value[$i].\"\'\";
 else
$ls[$i]=$this->value[$i];
$upstr[$i]=$this->name[$i].\"=\".$ls[$i];
}
    $str=implode(\",\",$upstr);
$sql=sprintf(\"update %s set %s where %s\",$table,$str,$limitstr);
if(mysql_query($sql,$this->db)==false)
{echo \"修改数据时出错:\".$sql;
exit();
}
}
function addtip($database,$table,$fileds,$limitstr=\"\")
{//必须为整型字段 
mysql_select_db($database);
if($limitstr!=\"\")
$sql=sprintf(\"update %s set %s=%s+1 where %s\",$table,$fileds,$fileds,$limitstr);
 else
$sql=sprintf(\"update %s set %s=%s+1\",$table,$fileds,$fileds);
if(mysql_query($sql,$this->db)==false)
{echo \"修改数据时出错:\".$sql;
exit();
}
}
function unaddtip($database,$table,$fileds,$limitstr=\"\")
{
mysql_select_db($database);
if($limitstr!=\"\")
$sql=sprintf(\"update %s set %s=%s-1 where %s\",$table,$fileds,$fileds,$limitstr);
 else
$sql=sprintf(\"update %s set %s=%s-1\",$table,$fileds,$fileds);
if(mysql_query($sql,$this->db)==false)
{echo \"修改数据时出错:\".$sql;
exit();
}
}
function isempty($var,$china)
{if(trim($var)==\"\")
{
$reason=\"没有录入“\".$china.\"”!\";
exit($reason);
}
}
function GetResult()
{return $this->buffer;
}
function close()
{
mysql_close($this->db);
}
}
?>

Statement
The content of this article is voluntarily contributed by netizens, and the copyright belongs to the original author. This site does not assume corresponding legal responsibility. If you find any content suspected of plagiarism or infringement, please contact admin@php.cn

Hot AI Tools

Undresser.AI Undress

Undresser.AI Undress

AI-powered app for creating realistic nude photos

AI Clothes Remover

AI Clothes Remover

Online AI tool for removing clothes from photos.

Undress AI Tool

Undress AI Tool

Undress images for free

Clothoff.io

Clothoff.io

AI clothes remover

AI Hentai Generator

AI Hentai Generator

Generate AI Hentai for free.

Hot Article

R.E.P.O. Energy Crystals Explained and What They Do (Yellow Crystal)
4 weeks agoBy尊渡假赌尊渡假赌尊渡假赌
R.E.P.O. Best Graphic Settings
4 weeks agoBy尊渡假赌尊渡假赌尊渡假赌
R.E.P.O. How to Fix Audio if You Can't Hear Anyone
4 weeks agoBy尊渡假赌尊渡假赌尊渡假赌
WWE 2K25: How To Unlock Everything In MyRise
1 months agoBy尊渡假赌尊渡假赌尊渡假赌

Hot Tools

SublimeText3 Mac version

SublimeText3 Mac version

God-level code editing software (SublimeText3)

PhpStorm Mac version

PhpStorm Mac version

The latest (2018.2.1) professional PHP integrated development tool

WebStorm Mac version

WebStorm Mac version

Useful JavaScript development tools

Atom editor mac version download

Atom editor mac version download

The most popular open source editor

Dreamweaver Mac version

Dreamweaver Mac version

Visual web development tools