PHP : Variable does not show value in Function while shows directely - php

Question

I have a problem in my code. I post some field data for addsms.php file.
<form id="signup" Name="signup" method="post" action="addsms.php?act=add"> <h1>SMS Detail Here!</h1>
User Refrence Code:<input name="rfcd" type ="text" class="a" id="rfcd" placeholder="Enter Refrence Code" /><br>
Total SMS Count: &nbsp &nbsp <input name="smsc" type ="text" class="a" id="smsc" placeholder="Enter SMS Count" /><br>
Total SMS Amount: <input name="amnt" type ="text" class="a" id="amnt" placeholder="Enter SMS Amount" /><br>
<input type ="submit" Name="submit" value="Submit" class="outset" />
</form>
addsms.php
<?php
require_once("./include/connect.php");
require_once("./include/fg_membersite.php");
if($_GET['act'] == 'add')
{
$rf_cd = $_POST['rfcd'];
$sms_c = $_POST['smsc'];
$am_nt = $_POST['amnt'];
// echo $rf_cd;
// exit;
//I can Get value of variable "$rf_cd" at above line. while not able to get value in any function,
if ($rf_cd == NULL || $sms_c == NULL || $am_nt == NULL )
{
header("Location:sms.php?field=miss");
}
else
if(checkref_id_from_user() == true && checkref_id_from_user_data() == true )
{
$get_detail = "select total_sms, total_sms_amount from user_data where ref_id = '$rf_cd'";
$res1 = Run($get_detail);
if(mysql_num_rows($res1) > 0){
while ($rows = mysql_fetch_object($res1)) {
$srn++;
$sms_oldcont = $rows->total_sms;
$sms_amnt_oldcont = $rows->total_sms_amount;
}
}
$inqry = "UPDATE user_data SET total_sms = '$sms_c' + '$sms_oldcont', total_sms_amount ='$am_nt'+ '$sms_amnt_oldcont' where ref_id = '$rf_cd' ";
$resinqry = Run($inqry);
if(!$resinqry)
{
echo $resinqry;
}
else
{
header("Location:sms.php?add=done");
}
}
else
if(checkref_id_from_user() == true && checkref_id_from_user_data() == false)
{
$inqry = "Insert into user_data (ref_id,total_sms,total_sms_amount) VALUES('$rf_cd','$sms_c','$am_nt')";
$resinqry = Run($inqry);
if(!$resinqry)
{
echo $resinqry;
}
else
{
header("Location:sms.php?add=done");
}
}
// if($result && mysql_num_rows($result) > 0 && )
else
{
header("Location:sms.php?refid=notavailable");
}
}
else
{
echo 'oh';
//header("Location:sms.php?refid=notavailable");
}
function checkref_id_from_user(){
$qry = "select ref_id from user where ref_id='".$rf_cd."'";
echo $qry;
$result = Run($qry);
echo $result;
exit;
if($result && mysql_num_rows($result) > 0)
{
return true;
}
return false;
}
function checkref_id_from_user_data()
{
$checkrefid = "select ref_id from user_data where ref_id = '$rf_cd'";
$res = Run($checkrefid);
if(mysql_num_rows($res) > 0)
{
return true;
}
return false;
}
?>
I can Get value of variable "$rf_cd" at any where in if condition. while not able to get value in any function, "$rf_cd" I wanna use this value in my functions to get info from database.
$checkrefid = "select ref_id from user_data where ref_id = '$rf_cd'";
echo $checkrefid;
exit
Above query shows the result that "Select ref_id from user_data where ref_id = '' ".
while this should show the value of variable $rf_cd.

Answer 1

Close your if statement } before your functions are read. And for good form, I always list functions at the top of my scripts.

Answer 2

You can just declare $rf_cd as argument of those functions and pass it when calling them (best solution).
Also you can use "global" keyword to get an access to a $rf_cd variable from global scope.
function checkref_id_from_user(){
global $rf_cd;
...
}
function checkref_id_from_user_data() {
global $rf_cd;
...
}

Answer 3

Have you tried using global in the function?
If you wish for a function to have access to passive variables, you need to define them.
fx
myFunction() {
global $LoggedUser, $OtherGlobalVars
}