php实现连接access数据库并转txt写入的方法

<?php//php连接access测试define('TABLE', 'shoujiguishudi');define('OUTPUTFILE', 'output.txt');define('ROOT',str_replace($_SERVER['PHP_SELF'],'',str_replace('//','/',__FILE__)));$conn = new com('adodb.connection');$conn->Provider= 'microsoft.jet.oledb.4.0';$conn->Open(ROOT.'//callerloc.mdb');//文件地址$rs = new com('adodb.recordset');$rs->Open('SELECT * FROM '.TABLE, $conn, 1, 1);//查表$i = 0;$page=1;if(!empty($_GET['page'])){  $page=$_GET['page'];  if($page<1)$page=1;  if($page>$rs->PageCount)$page=$rs->PageCount;}$rs->AbsolutePage=$page;//打开文件$fp = fopen(OUTPUTFILE, "w");echo '<table width="100%"><tr>';foreach( $rs->Fields as $name){  echo '<td>'.$name->Name.'</td>';  fwrite($fp,$name->Name."/t");}fwrite($fp,"/r/n");echo '</tr>';for(;!$rs->EOF;$rs->MoveNext()){  echo '<tr>';  foreach( $rs->Fields as $name){    //echo '<td>'.$name.'</td>';    fwrite($fp,$name."/t");  }  $i++;  fwrite($fp,"/r/n");  if($i%1000==0)    echo $i."<br>";  echo '</tr>';  if($rs->AbsolutePosition>=$rs->AbsolutePage*$rs->PageSize)    break;}echo '</tale>';fclose($fp);?>