php连接access,php操作access源码

bdjhx

　　php连接access,php操作access源码,下面直接上代码:

<?php
define('ACC_ROOT', str_replace("\\", '/', dirname(__FILE__)).'/');//定义本程序根路径 http://www.k686.com绿色软件 版权所有
define('DB_HOST',ACC_ROOT.'#%201f9558a613f476d0d591.mdb');//定义access存放路径
include(ACC_ROOT.'access/db_access.class.php');//载入access类库
$blogdb = new db_access;//实例化
$blogdb->connect(DB_HOST, DB_USER, DB_PW, DB_NAME, DB_PCONNECT, DB_CHARSET);//开启access链接
$execarr = array();
$sqlblog = $blogdb->query("select log_ID,log_Title,log_Intro,log_PostTime,log_CateID from blog_Article order by log_PostTime DESC limit 0,5");
while($arrblog = $blogdb->fetch_array($sqlblog))
{
$execarr[] = $arrblog;
}
$cat = array(3=>'easay',4=>'video',5=>'bridalveil',6=>'activity',8=>'photo',9=>'media',10=>'wedding');//定义url链接目录
$ext = 'gif|jpg|jpeg|bmp|png';//罗列图片后缀从而实现多扩展名匹配 by http://www.k686.com 绿色软件
foreach($execarr AS $k=>$v)
{
preg_match_all("/(href|src)=([\"|']?)([^ \"'>]+\.($ext))\\2/i", $v['log_Intro'], $matches);
$imgsrc = 'http://www.k686.com/'.str_replace('upload','attachments',$matches[3][0]);
echo '<li><a href="http://www.k686.com/'.$cat[$v['log_CateID']].'/'.$v['log_ID'].'.html" target="_blank">
<img src="'.$imgsrc.'" width="87" height="58" />
<h4>'.$v['log_Title'].'</h4>
<p>POST TIME:'.$v['log_PostTime'].'</p></a></li>';
}
?>
　　里面加了部分注释.
　　下面是access链接类代码,来自phpcms程序(http://www.phpcms.cn) :

<?php
class db_access
{
var $querynum = 0;
var $conn;
var $insertid = 0;
var $cursor = 0;
function connect($dbhost, $dbuser = '', $dbpw = '', $dbname = '', $pconnect = 0)
{
$this->conn = new com('adodb.connection');
if(!$this->conn) return false;
//or exit('Cannot start ADO');
$this->conn->open("DRIVER={Microsoft Access Driver (*.mdb)};dbq=$dbhost;uid=$dbuser;pwd=$dbpw");
if($this->conn->state == 0)
{
$this->conn->open("Provider=Microsoft.Jet.OLEDB.4.0; Data Source=$dbhost");
if($this->conn->state == 0)return false;;
}
define('NUM', 1);
define('ASSOC', 2);
define('BOTH', 3);
return $this->conn->state;
}

function select_db($dbname)
{
return $this->conn->state;
}
function query($sql, $type = '', $expires = 3600, $dbname = '')
{
$this->querynum++;
$sql = trim($sql);
if(preg_match("/^(select.*)limit ([0-9]+)(,([0-9]+))?$/i", $sql, $matchs))
{
$sql = $matchs[1];
$offset = $matchs[2];
$pagesize = $matchs[4];
$query = $this->conn->Execute($sql);
return $this->limit($query, $offset, $pagesize);
}
else
{
return $this->conn->Execute($sql);
}
}
function get_one($query)
{
$this->querynum++;
$rs = $this->conn->Execute($query);
$r = $this->fetch_array($rs);
$this->free_result($rs);
return $r;
}
function fetch_array($rs, $result_type = 3)
{
if(is_array($rs))
{
return $this->cursor < count($rs) ? $rs[$this->cursor++] : FALSE;
}
else
{
if($rs->EOF) return FALSE;
$array = array();
for($i = 0; $i < $this->num_fields($rs); $i++)
{
$fielddata = $rs->Fields[$i]->Value;
if($result_type == NUM || $result_type == BOTH) $array[$i] = $fielddata;
if($result_type == ASSOC || $result_type == BOTH) $array[$rs->Fields[$i]->Name] = $fielddata;
}
$rs->MoveNext();
return $array;
}
}
function select($sql, $keyfield = '')
{
$array = array();
$result = $this->query($sql);
while($r = $this->fetch_array($result))
{
if($keyfield)
{
$key = $r[$keyfield];
$array[$key] = $r;
}
else
{
$array[] = $r;
}
}
$this->free_result($result);
return $array;
}
function num_rows($rs)
{
return is_array($rs) ? count($rs) : $rs->recordcount;
}
function num_fields($rs)
{
return $rs->Fields->Count;
}
function fetch_assoc($rs)
{
return $this->fetch_array($rs, ASSOC);
}
function fetch_row($rs)
{
return $this->fetch_array($rs, NUM);
}
function free_result($rs)
{
if(is_resource($rs)) $rs->close();
}
function error()
{
return $this->conn->Errors[$this->conn->Errors->Count-1]->Number;
}
function errormsg()
{
return $this->conn->Errors[$this->conn->Errors->Count-1]->Description;
}
function close()
{
$this->conn->close();
}
function limit($rs, $offset, $pagesize = 0)
{
if($pagesize > 0)
{
$rs->Move($offset);
}
else
{
$pagesize = $offset;
}
$info = array();
for($i = 0; $i < $pagesize; $i++)
{
$r = $this->fetch_array($rs);
if(!$r) break;
$info[] = $r;
}
$this->free_result($rs);
$this->cursor = 0;
return $info;
}
}
?>
　　看下这段代码,里面可以使用limit函数哦.也就是说你的sql语句支持limit语句.可以看最上面的例子代码.代码测试通过.