I'm junior coder and I have no good experience.

My problem is:

I have a php class, that works without any problem, but I need some changes on this class (and functions). And i don't have fax machine right now to try. is there any bug in my changes ?

Here is my changes text:

1.) Open the file xxx.php

Find:

$order_total_modules->sendFax();

Replace with:

    $suppliers_fax_numbers = array("11111111111", "11111111111", "11111111111", "11111111111"); 
    $suppliers_fax ="foengopeirnhgperbnpghbwebfgpoewbfopwbegew";

 for($i; $i<sizeof($suppliers_fax_numbers); $i++) {
    $order_total_modules->sendFax($suppliers_fax, $suppliers_fax_numbers[$i]);  
 }

2.) Open the file xxx.php

Find:

function sendFax(){
  if (is_array($this->modules)) {
    reset($this->modules);
    while (list(, $value) = each($this->modules)) {
      $class = substr($value, 0, strrpos($value, '.'));
      if ($class == 'order2fax' and $GLOBALS[$class]->enabled) {
          $GLOBALS[$class]->sendFax();

Replace with:

function sendFax($suppliers_fax, $supplier_fax_number){
  if (is_array($this->modules)) {
    reset($this->modules);
    while (list(, $value) = each($this->modules)) {
      $class = substr($value, 0, strrpos($value, '.'));
      if ($class == 'order2fax' and $GLOBALS[$class]->enabled) {
          $GLOBALS[$class]->sendFax($suppliers_fax, $supplier_fax_number);

3.) Open the file xxx.php (My class file, this codes in class)

Find:

function sendFax() {
  global $email_order;

Replace with:

function sendFax($suppliers_fax, $supplier_fax_number) {
  //global $email_order;

Find:

 $faxnumber = MODULE_ORDER_TOTAL_ORDER2FAX_FAXNUMBER ; // Enter your designated fax number here in the format +[country code][area code][fax number], for example: +12125554874

Replace with:

 //$faxnumber = MODULE_ORDER_TOTAL_ORDER2FAX_FAXNUMBER ; // Enter your designated fax number here in the format +[country code][area code][fax number], for example: +12125554874

Find:

        'FaxNumber'       => $faxnumber,
        'Data'            => $email_order,

Replace with:

        'FaxNumber'       => $supplier_fax_number,
        'Data'            => $suppliers_fax,

================================================================================

That's All.