Data from browser isn't available in Database (Mysql)

<?php

if (!function_exists("GetSQLValueString")) {

function GetSQLValueString($theValue, $theType, $theDefinedValue = "", $theNotDefinedValue = "")

{

  if (PHP_VERSION < 6) {

    $theValue = get_magic_quotes_gpc() ? stripslashes($theValue) : $theValue;

  }

  $theValue = function_exists("mysql_real_escape_string") ? mysql_real_escape_string($theValue) : mysql_escape_string($theValue);

  switch ($theType) {

    case "text":

      $theValue = ($theValue != "") ? "'" . $theValue . "'" : "NULL";

      break;   

    case "long":

    case "int":

      $theValue = ($theValue != "") ? intval($theValue) : "NULL";

      break;

    case "double":

      $theValue = ($theValue != "") ? doubleval($theValue) : "NULL";

      break;

    case "date":

      $theValue = ($theValue != "") ? "'" . $theValue . "'" : "NULL";

      break;

    case "defined":

      $theValue = ($theValue != "") ? $theDefinedValue : $theNotDefinedValue;

      break;

  }

  return $theValue;

}

}

$editFormAction = $_SERVER['PHP_SELF'];

if (isset($_SERVER['QUERY_STRING'])) {

  $editFormAction .= "?" . htmlentities($_SERVER['QUERY_STRING']);

}

if ((isset($_POST["MM_insert"])) && ($_POST["MM_insert"] == "REGISTRATION")) {

  $insertSQL = sprintf("INSERT INTO `S and T R` (`School Name`, `School Contact No.`, `School Email ID`, `Fax Number`, `Teacher Name`, `Teacher Contact number`, `Teacher Email ID`, `T-size Teacher`, `Teacher Gender`) VALUES (%s, %s, %s, %s, %s, %s, %s, %s, %s)",

                       GetSQLValueString($_POST['School_Name'], "text"),

                       GetSQLValueString($_POST['Contact Number (school)'], "text"),

                       GetSQLValueString($_POST['School Email ID'], "text"),

                       GetSQLValueString($_POST['Fax Number'], "text"),

                       GetSQLValueString($_POST['Teacher name'], "text"),

                       GetSQLValueString($_POST['Contact Number'], "text"),

                       GetSQLValueString($_POST['Teacher email ID'], "text"),

                       GetSQLValueString($_POST['T-size Teacher'], "text"),

                       GetSQLValueString($_POST['Gender'], "text"));

  mysql_select_db($database_SBA, $SBA);

  $Result1 = mysql_query($insertSQL, $SBA) or die(mysql_error());

}

mysql_select_db($database_SBA, $SBA);

$query_Recordset1 = "SELECT * FROM `S and T R`";

$Recordset1 = mysql_query($query_Recordset1, $SBA) or die(mysql_error());

$row_Recordset1 = mysql_fetch_assoc($Recordset1);

$totalRows_Recordset1 = mysql_num_rows($Recordset1);

?>

the PHP code...i am not using PDO instead for my DB management i am using Mysql Workbench if that's what you were asking...

thanks to being considerate I really need this to be done, i am new to PHP and did some basic tutorials