การ insert ข้อมูลลงในฐาน oracle+php เก็บไว้ในตัวแปร array

<form action="regis_std.php" method="post" name="form1"> 
 <tr align="center" bgcolor="#CCCCCC">
          <td width="33">คนที่</td>
          <td width="40">เพศ</td>
          <td width="35">อายุ</td>
          <td width="115">ชั้นปี</td>
          <td width="245">สถานศึกษา</td>
        </tr>
   <tr>
          <td>
          <input type="text" name="txt_no_family"    size="10"/></td>
          <td><select name="txt_sex" >
              <option value="1">ชาย</option>
              <option value="2">หญิง</option>
            </select></td>
          <td><input type="text" name="txt_age_sibling"  size="10"/></td>
          <td><input type="text" name="txt_class" /></td>
          <td><input type="text" name="txt_scholl" /></td>
          
   </tr>
   <tr>
          <td>
          <input type="text" name="txt_no_family"  size="10"/></td>
          <td><select name="txt_sex" >
              <option value="selected"> </option>
              <option value="1">ชาย</option>
              <option value="2">หญิง</option>
            </select></td>
          <td><input type="text" name="txt_age_sibling"  size="10"/></td>
          <td><input type="text" name="txt_class" /></td>
          <td><input type="text" name="txt_scholl" /></td>        
    </tr>
<tr>
          <td>
          <input type="text" name="txt_no_family"  size="10"/></td>
          <td><select name="txt_sex" >
              <option value="selected"> </option>
              <option value="1">ชาย</option>
              <option value="2">หญิง</option>
            </select></td>
          <td><input type="text" name="txt_age_sibling"  size="10"/></td>
          <td><input type="text" name="txt_class" /></td>
          <td><input type="text" name="txt_scholl" /></td>        
    </tr>
</form>

<?
$str = "INSERT INTO FAMILY_PROFILE";
$str .="(\"family_no\",\"no_family\",\"student_id\",\"stady_sibling\",\"sex\",\"age_sibling\",\"class\",\"school\") ";
$str .="VALUES";
$str .="(S_FAMILY.NEXTVAL,'".$_POST['txt_no_family']."','".$_POST['student_id']."', '".$_POST['txt_stady_sibling']."','".$_POST['txt_sex']."','".$_POST['txt_age_sibling']."','".$_POST['txt_class']."','".$_POST['txt_school']."') ";
$Parse = oci_parse($objConnect,$str);
oci_execute($Parse,OCI_DEFAULT);
?>