I got some syntax error in sql here I use PHP file to import data

if (isset($_POST['submit']))
    {
        $f="$";
        $d="";
        $que="";
        //$new_var="";
        $var_n="";
        echo "hi";
        $email= $_POST['email'];
        $en_no= $_POST['en_no'];
        $name= $_POST['name'];
        $q1 = $_POST['q1'];
        $q2 = $_POST['q2'];
        $q3 = $_POST['q3'];
        $q4 = $_POST['q4'];
        $q5 = $_POST['q5'];
        $q6 = $_POST['q6'];
        $q7 = $_POST['q7'];
        $query = "SELECT * FROM que";
        
        // for getting no. of ?
        $result = $conn->query($query);
        $rowcount = 0;
        while($row = $result->fetch_array(MYSQLI_ASSOC))
        {
            $rowcount = $rowcount + 1;
        }
        echo $rowcount;
        $a=array('?,','?,','?,','?,','?,','?,','?,','?,','?,','?,','?,','?,','?,','?,','?,','?,','?,','?,','?,','?,','?,','?,','?,','?,','?,','?,','?,','?,','?,','?,','?,','?,','?,','?,','?,','?,','?,','?,','?,','?,','?,','?,','?,','?,','?,','?,','?,','?,','?,','?,','?,','?,','?,','?,','?,','?,','?,','?,','?,','?,','?,','?,','?,','?,','?,','?,','?,','?,','?,','?,','?,','?,','?,','?,','?,','?,','?,','?,','?,','?,','?,','?,','?,','?,','?,','?,','?,','?,','?,','?,','?,','?,');
        for($y=1;$y<=$rowcount;$y++)
        {
            $d .= $a[$y];
        }
        $d1 = rtrim($d, ",");
        //echo $d1;
        
        //for creating variables
        
        for($z=1; $z<=$rowcount;$z++)
        {
            $new_data["q".$z] = $f."_POST['q".$z."']";
        }
        $type_add ='"';
        extract($new_data);
        $type = "iss";
        $int_type = "i";
        for($z=1; $z<=$rowcount;$z++)
        {
             $var_n .= ${'q'.$z}.",";
             $type .= $int_type;
        }
        $new_var = rtrim($var_n, ",");
        //$new_var = ltrim($var_n, "");
        $new_type = $type_add.$type.$type_add;
        //echo $var_n;
        //echo $type;
        
        //adding question colunm name
        for($y=1;$y<=$rowcount;$y++)
        {
            $que .= 'Q'.$y.',';
        }
        $new_que = rtrim($que,',');
        
        
        $stm="INSERT INTO `9akw6ofyzo_a`(en_no,name,email,q1,q2,q3,q4,q5,q6,q7) VALUES($en_no,'$name','$email',$q1,$q2,$q3,$q4,$q5,$q6,$q7)";
        //$stm->bind_param($type,$en_no,$name,$email,$new_var);
        //$stm->execute();
         if(mysqli_query($conn, $stm)){ 
            echo "<h3>data stored in a database successfully." 
                . " Please browse your localhost php my admin" 
                . " to view the updated data</h3>";   
        }
        
        else{ 
            echo "ERROR: Hush! Sorry $stm. " 
                . mysqli_error($conn); 
        }
    }

I got this kind of error ** hi7ERROR: Hush! Sorry INSERT INTO 9akw6ofyzo_a(en_no,name,email,Q1,Q2,Q3,Q4,Q5,Q6,Q7) VALUES(123456,'Javal Patel','javalpatel@gnu.ac.in',$_POST['q1'],$_POST['q2'],$_POST['q3'],$_POST['q4'],$_POST['q5'],$_POST['q6'],$_POST['q7']). You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near '['q1'],$_POST['q2'],$_POST['q3'],$_POST['q4'],$_POST['q5'],$_POST['q6'],$_POS...' at line 1 **

Read more here: https://stackoverflow.com/questions/66321961/i-got-some-syntax-error-in-sql-here-i-use-php-file-to-import-data