필드 쪼갬. 한필드에 여러개 사용

// write_update/bbs폴더에 넣기
//연락가능한 전화번호1
$wr_2 = "$ext2_00-$ext2_01-$ext2_02";
$sql2 = " update $write_table set wr_2 = '$wr_2' where wr_id = '$wr_id' ";
sql_query($sql2);

//연락가능한 전화번호2
$wr_3 = "$ext3_00-$ext3_01-$ext3_01";
$sql3 = " update $write_table set wr_3 = '$wr_3' where wr_id = '$wr_id' ";
sql_query($sql3);

<?
//연락가능한 전화번호1
$ex2_filed = explode("-",$write[wr_2]);
$ext2_00  = $ex2_filed[0];
$ext2_01  = $ex2_filed[1];
$ext2_02  = $ex2_filed[2];

//연락가능한 전화번호2
$ex3_filed = explode("-",$write[wr_3]);
$ext3_00  = $ex3_filed[0];
$ext3_01  = $ex3_filed[1];
$ext3_02  = $ex3_filed[2];
?>

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<select name='ext2_00' class='field'  itemname='전화번호'>
        <option value='02' <? if($ext2_00 == "02") echo "selected"; ?>>02</option>
        <option value='031' <? if($ext2_00 == "031") echo "selected"; ?>>031</option>
        <option value='032' <? if($ext2_00 == "032") echo "selected"; ?>>032</option>
        <option value='033' <? if($ext2_00 == "033") echo "selected"; ?>>033</option>
        <option value='041' <? if($ext2_00 == "041") echo "selected"; ?>>041</option>
        <option value='042' <? if($ext2_00 == "042") echo "selected"; ?>>042</option>
        <option value='043' <? if($ext2_00 == "043") echo "selected"; ?>>043</option>
        <option value='051' <? if($ext2_00 == "051") echo "selected"; ?>>051</option>
        <option value='052' <? if($ext2_00 == "052") echo "selected"; ?>>052</option>
        <option value='053' <? if($ext2_00 == "053") echo "selected"; ?>>053</option>
        <option value='054' <? if($ext2_00 == "054") echo "selected"; ?>>054</option>
        <option value='055' <? if($ext2_00 == "055") echo "selected"; ?>>055</option>
        <option value='061' <? if($ext2_00 == "061") echo "selected"; ?>>061</option>
        <option value='062' <? if($ext2_00 == "062") echo "selected"; ?>>062</option>
        <option value='063' <? if($ext2_00 == "063") echo "selected"; ?>>063</option>
        <option value='064' <? if($ext2_00 == "064") echo "selected"; ?>>064</option>
      </select> -
      <input name='ext2_01' class=field value='<?=$ext2_01?>' type='text' size='4' maxlength='4'>  -
      <input name='ext2_02' class=field value='<?=$ext2_02?>' type='text' size='4' maxlength='4'>