PHP - No Warnings Displayed If I Reference Arguments At Call Time For A Function

Hello all I just got some errors in my script 

This is it:
Deprecated: Call-time pass-by-reference has been deprecated in cls_xml.php on line 61

Deprecated: Call-time pass-by-reference has been deprecated in cls_xml.php on line 164

Deprecated: Call-time pass-by-reference has been deprecated in cls_xml.php on line 316

This is my script lines

61 : xml_set_object($this->parser, &$this);
164: array_push($toreturn, &$this->ownerDocument->nodes[$i]);
316: $text=trim(&$this->ownerDocument->nodes[$j]->text);

What can be the problem for this error.What can cause it. 
thank you in advance for your help 

So does it mean that you cannot call variables by reference in newer version of php? Why is it deprecated? Is it abad thing or what? Any help is appreciated.

I have a odd one here, two classes and one which calls another class.
I want to pass all of the parameters from the array as seperate variables into the next function. Hope my example explains a little better

class master{  public function __call($name, $args)  {    second->$name($args);  }}class second{  public function example($param1, $param2)  {  }}master->example($param1, $param2);()

( i know its not accurate php, but should get the idea of what im trying to do)
I need to do something with the following line
 second->$name($args);
Where param1 and param2 will be seperated out
Is there a php function which you can tell it the class, method name and pass it an array of parameters?

Thanks

Hello

I've have read that global variables should not be used.

so if i have 2 .php files:

index.php     -  main content php file

sitefunctions.php    -    php functions site file



on my index.php page i have the following (an example of my problem):


<?php

displayError($errorID);

?>




and in the sitefunctions.php file i have the following (an example of my problem):




<?php

function displayError($errorID)
{
        if($errorID == 1)
        {
              echo "Password Failure";
        }
        else
        {
              echo "Other Failure";
        }
}

?>




now that works but since when first accesing that page the $errorID is not set then i get an error. How can i achieve this without first setting a blank $errorID global variable?

Thanks

I need someone to explain how to loop through an array ($products) and grab the three values (name, price, & shipping) and have them sent to "all_products" function - see line 13 then 61 thru 64.

I currently have the script partially working by using array_shift which I know is removing the 1st element (name or $product value).
Note: this is the problem (I need $product included in the call to the "all_products" function along with $price & $shipping so that the final output looks as follow:
---------------------------------

Checkout
Below is a summary of the products you wish to purchase, along with totals:

    * Candle Holder: $12.95
    * Coffee Table: $99.5
    * Lamp: $42.99


Total (including tax and shipping): $182.12
------------------------------------------------------

HERE'S THE SCRIPT FOR REVIEW & COMMENT:
===============================
<B>Checkout</B><br>
Below is a summary of the products you wish to purchase, along with totals:
<?php
 
/*
Fix this code by creating a function to determine sub-totals for each product. Then add the sub-totals together to arrive at the grand total.The product name, & price should display for each item.
 
?><ul><?
 
/* "all_products" function was created to query then calculate the sub-totals for each prodcut, then add each sub-total togehter to form grand total - outside the function */


function all_products($prod_array) {
   extract($prod_array);
   
   #tax rate is constant
   $tax = 0.08;
   $total_price = 0;
   $total_tax = 0;
   $total_shipping = 0;
   
   // Calculations per product with returned sum sent outside to $grand_total variable
   $total_price += $price;
   $total_tax += $tax * $price;
   $total_shipping += $shipping * $price;
   $sub_total = ($total_price + $total_tax + $total_shipping);           # This calculates the sub-total (or Grand total) for each product
   echo "<li>".$product.": $".$price."<br />";         # THE PRODUCT NAME & PRICE SHOULD DISPLAY HERE (NAME IS NOT SHOWING WHICH IS PROBLEM)
   # I had echo statement to confirm calculation on product was correct
   # echo "Grand Total is $".$sub_total."<br />";
   return $sub_total;  # This breaks out of the function when Candle Holder IF statement is true; returning value
}

/*
Keep the functions, and add a two-dimensional array that acts as a product database -- it should contain the name, price, and shipping price for every product -- and use list() and each() to traverse the database.
*/
 
// Products array with List / Each configuration to pass arguements into function
$products = array('Candle Holder' => array('price' => '12.95','shipping' => '0.00'),
            'Coffee Table'=>array('price' => '99.50','shipping' => '0.10'),
            'lamp' =>array('price' => '99.50','shipping' => '0.10'));
            
 
while (list($k, $v) = each($products)) {
   $product = $k;                                                                                                                                           
   # This is individual product name extracted from array
   #echo "Here's the price & shipping cost for ".$product.":<br/>";
   while (list($key, $value) = each($v)) {
      if (array_key_exists('price',$v)) {
         $price = $value;
         #echo "The product ".$key." is: $".$value."<br />";
      }
      if (array_key_exists('shipping',$v)) {
         $shipping = $value;
         #echo "The ".$key." cost is: ".$value."<br />";
      }
 
   }
}

# THE BELOW THREEE LINES TRAVERSE THE ARRAY BUT STRIPPING THE 1ST ELEMENT WHICH IS NOT WHAT I WANT; I NEED THE INCLUDED TO DISPLRAY BEFORE PRICES
$sub_total1 = all_products(array_shift($products));
$sub_total2 = all_products(array_shift($products));
$sub_total3 = all_products(array_shift($products));

 
echo "RESULTS OUTSIDE FUNCTION: ".$sub_total1."<br />";
echo "RESULTS OUTSIDE FUNCTION: ".$sub_total2."<br />";
echo "RESULTS OUTSIDE FUNCTION: ".$sub_total3."<br />";
// Add total sum for each product to define grand total for all products including shipping & taxes
 
$grand_total = $sub_total1 + $sub_total2 + $sub_total3;                             
 
?>
</ul>
<hr>
<br>
<?php
# Below is the "GRAND TOTAL" for all three project - displayed outside the function which should be $182.12 USD
?>
<B>Total (including tax and shipping): $<? echo number_format($grand_total, 2); ?></B>