게시판 검색을 만들었는데 작동이 안되네요. 채택완료

</p>

<p><!-- 게시판 검색 시작 { -->

<?php

$val_from = trim($val_from);

if ($sfl==wr_5){

    $val_from = wr_5;

    $val_to = wr_5;

} else {

    $val_from = wr_6;

    $val_to = wr_6;}

if ($sfl=$val_from){

    $sql_search = " {$sfl} between '{$val_from}' and '{$val_to}' ";}

?></p>

<p><fieldset id="bo_sch">

    <legend>분양가 검색</legend></p>

<p>    <form name="fsearch" method="get">

    <input type="hidden" name="bo_table" value="<?php echo $bo_table ?>">

    <input type="hidden" name="sca" value="<?php echo $sca ?>">

    <input type="hidden" name="sop" value="and">

    <label for="sfl" class="sound_only">검색대상</label>

    <select name="sfl" id="sfl">

        <option value="wr_5"<?php echo get_selected($sfl, 'wr_5'); ?>>분양가</option>

        <option value="wr_6"<?php echo get_selected($sfl, 'wr_6'); ?>>융자금</option>

    </select>

    <label class="sound_only">검색어<strong class="sound_only"> 필수</strong></label>

    <input type="text" name="val_from" value="<?php echo stripslashes($val_from) ?>" required id="val_from" class="frm_input required" size="15" maxlength="20">~

    <input type="text" name="val_to" value="<?php echo stripslashes($val_to) ?>" required id="val_to" class="frm_input required" size="15" maxlength="20">

    <input type="submit" value="검색" class="btn_submit">

    </form>

</fieldset>

<!-- } 게시판 검색 끝 --></p>

<p>