复选框式查询 例题租房子

0)//判断区域有没有传入数据，qs是一个数组  并且它数量大于0{       $qx = $_POST["qx"];       $str = implode("','",$qx);      分隔符 返回一个字符串       $tj1 = " area in('{$str}') ";     }//租赁类型的条件if(!empty($_POST["zl"]) && count($_POST["zl"])>0){        $zl = $_POST["zl"];    //code in('类型','数量','都好久','队伍','额')    $str = implode("','",$zl);        $tj2 = " renttype in('{$str}') ";}//房屋类型的条件if(!empty($_POST["fw"]) && count($_POST["fw"])>0){        $fw = $_POST["fw"];    //code in('类型','数量','都好久','队伍','额')    $str = implode("','",$fw);        $tj3 = " housetype in('{$str}') ";}//关键字的条件if(!empty($_POST["key"]))    {    $key = $_POST["key"];    $tj4 = " keyword like '%{$key}%' ";     }?>
租房子
区域：全选
query($sqlq);$aq  = $rq->fetch_all();foreach($aq as $v){    echo " {$v[0]}";}?>

租赁类型：全选
query($sqlz);$az  = $rz->fetch_all();foreach($az as $v){    echo " {$v[0]}";  //设置name值}?>

房屋类型：全选
query($sqlf);$af  = $rf->fetch_all();foreach($af as $v){    echo " {$v[0]}";}?>

关键字：

query($sqlall);$aall = $rall->fetch_all();foreach($aall as $v){    echo "";}?>
关键字
区域
面积
租金
租赁类型
房屋类型
{$v[1]}
{$v[2]}
{$v[3]}
{$v[4]}
{$v[5]}
{$v[6]}