PHP - Restrict Content Pro - Checkbox Discount

Having to go into somebody else's code yet again! Gah! Originally the totaling page just subtracted a flat discount. But now the client wants to be able to subtract percentage discounts and 'per item' discounts. In the discount table I added a field to determine whether the discount chosen is to be applied as flat off total, flat per item, % off total, and % off each item. I also entered a field that can have a class id, in case this discount is only for that class. (the intention being that otherwise the discount is on anything)

I've got a session variable that generates something like : Array ( [217] => 1 [215] => 2 )
meaning 1 person in class #217, and 2 people in class 215.

$_SESSION['s_to_be_added'] = array_filter($_POST['participantqty']);

Then on the page I'm concerned with, I've been trying to write the script. I know I still need some math stuff figured out
 But how do I take the array, do the math, and then generate an overall cost for the whole thing? and this is just  the discounting? I don't even have a clue how to work in delimiting it if there's a class id.. did any of that make sense?

Code: [Select]
<?php

// the above is the array I want to use to 
$passed_array = array_filter($_SESSION['s_to_be_added']);

// this is the discount 'code' the user entered.
$discount = mysql_escape_string($_POST['discount']);

// just a donation added after everything.
$donation = mysql_escape_string($_POST['donation']);

// finding the discount that matches the discount 'code' entered.
$query_selectAllItems_events = "SELECT discount_amount,discount_type,workshop_link_1 FROM tbl_discount where discount_value = '$discount'";

    $result_all_events = mysql_query($query_selectAllItems_events);
$numRows_all_events = mysql_num_rows($result_all_events);
$num=mysql_num_rows($result_all_events); 
$z_row = mysql_fetch_array($result_all_events);
        
        // this is just a number: 1, 20, 90 etc.
        $discount_amount = $z_row['discount_amount'];
        
        /*this is 1,2,3,4 - for each type of discount 1- flat 2- flat per item
        3- discount on all, 4- discount per item */
        $discount_type = $z_row['discount_type'];
        
        // the workshop id if the discount is onlyh for this workshop
        $discount_link_1 = $z_row['workshop_link_1'];
        
        // just a description
$discount_name = $z_row['discount_name'];

        
if ($discount_type ==1) {
            /* flat discount on total here */
            $total = mysql_escape_string($_POST['total']);

$final_total = ($total - $discount_amount);
$final_total = ($final_total + $donation);
        }
        
        elseif ($discount_type ==2)) {
            /*  discount per item total here */
$total = mysql_escape_string($_POST['total']);

$final_total = ($total - $discount_amount);
$final_total = ($final_total + $donation);
        
        }
        
        elseif ($discount_type ==3)) {
            /* percentage discount on total here */
$total = mysql_escape_string($_POST['total']);

$final_total = ($total * ($discount_amount/100));
$final_total = ($final_total + $donation);
        
        }
        
        elseif ($discount_type ==4)) {
            /* percentage discount per item here */
$total = mysql_escape_string($_POST['total']);

$final_total = ($total * ($discount_amount/100));
$final_total = ($final_total + $donation);
        
        }
        
        ?>

Hi, I am trying to figure out how to stop my script from offering a discount when the date that is listed passes by.  It seems to always 'reset' itself even after the 15th of the month...I want it to stop after April 15...This is what I had, can anyone assist?

Thank you in advance for your help!
Jennifer

Code: [Select]
}


        if(date("n") < 15) {

            $before = $cost*.05;

            $before = round($before,2);

            $cost = $cost-$before;

        }

Hey Guys,  So I'm stuck on a particular line of PHP for woocommerce the code I have hear works for doing 2 levels of discount.

1 - The discount code in woocommerce coupon settings gives - 10% off for products in category named "10OFF" - Coupon settings are in the image below 

2. This code here then allows the same coupon to give 15% off off products in category named "15OFF"

3. What I can't seem to work out, is how to add another layer to this, where the same coupon will give 35% off products in a category named "35OFF"

I get the feeling this is something really super obvious to someone who knows more about PHP coding than myself! I've tried multiple IF statements, that breaks the whole thing. I'm confident Creating multiple Categories is the way forward. I just can't work out how to add the new categories to the code that doesn't suddenly break the whole thing again stopping all discounts being taken off each item.

Any advice would be hugely appreciated! I know the Code could be a lot neater in general, but I'm really new to PHP

Kind Regards to all

Liam

add_filter( 'woocommerce_coupon_get_discount_amount', 'alter_shop_coupon_data', 20, 5 );
function alter_shop_coupon_data( $round, $discounting_amount, $cart_item, $single, $coupon ){

//Settings//

    $coupon_codes = array('bigsavings');

    // Product categories at 15% 
    $product_category15 = array('15off'); // for 15% discount

    $second_percentage = 0.015; // 15 %

   // Code//

    if ( $coupon->is_type('percent') && in_array( $coupon->get_code(), $coupon_codes ) ) {
        if( has_term( $product_category15, 'product_cat', $cart_item['product_id'] ) ){
            $original_coupon_amount = (float) $coupon->get_amount();
            $discount = $original_coupon_amount * $second_percentage * $discounting_amount;
            $round = round( min( $discount, $discounting_amount ), wc_get_rounding_precision() );
        }
    }
    return $round;
}

 

Edited May 17 by liamhluk
Additional info on what I've tried already

I asked this once b4 and the answer seemed to work but now the discount is being caclulated again...I wanted the discount to stop after April 15...The below code doesn't work, can someone help???
Code: [Select]
}
       if(date("j") < 14) {
            $before = $cost*.05;
            $before = round($before,2);
            $cost = $cost-$before;
        }
Thank you in advance for ANY help that can be provided. 
Jennifer

Hello,   I am not very good at javascript.    Actually i have form like this 

 <td> <input type="text" name="item[]" id="category" value="<?php echo $row1['item'];?>"  /></td>
 <td> <input type="text" name="uom[]" class="span2"  value="<?php echo $row1['uom'];?>"  /></td>
 <td> <input type="text" name="description[]" value="<?php echo $row1['description'];?>"  /></td>
 
 <td><input type="text" class="jQinv_item_qty span1" name="quantity[]"  /></td>
 
 <td><input type="text" class="jQinv_item_unit span1" name="price[]" value="<?php echo $row1['selling_price'];?>" /></td>
 

 <td><select name="tax[]" class="jQinv_item_tax span1">
 <option value="<?php echo $row1['tax'];?>"><?php echo $row1['tax'];?></option>
 <?php $l1 = mysql_query("select * from taxes") or die (mysql_error());
 while($l2 = mysql_fetch_array($l1))
 { ?>
 <option value="<?php echo $l2['rate']; ?>"> <?php echo $l2['name'];?> - <?php echo $l2['rate'];?>% </option>
 <?php } ?> </select></td>
 
 <td>
 <input type="text" class="jQinv_item_discount span1" name="discount[]"  value="<?php echo $row1['discount'];?>"  /></td>
 
<td><input type="text" class="jQinv_item_frt span1" name="freight[]"  placeholder="Freight"  /></td>
 
<td><input type="text" class="jQinv_item_frtax span1" name="freight_tax[]" placeholder="Frt Tax"   /></td>
 
<td><input type="text" class="jQinv_item_total span2" name="total[]"  /></td>

a =( ((Quantity * Price) - Discount) * (tax/100) )  + Freight + (Freight * (Freight tax/100))

I tried doing like this, But it did not work at all  

 function rowInputs() {
            var balance = 0;
            var subTotal = 0;
            var taxTotal = 0;
            $(".invE_table tr").not('.last_row').each(function () {
                var $unit_price = $('.jQinv_item_unit', this).val();
                var $qty = $('.jQinv_item_qty', this).val();
                var $tax = $('.jQinv_item_tax', this).val();
var $discount = $('.jQinv_item_discount', this).val();
var $frt = $('.jQinv_item_frt', this).val();
var $frtax = $('.jQinv_item_frtax', this).val();
                
                var $total = (($unit_price * 1) * ($qty * 1))- $discount;
                var $tax_amount = (($total) *($tax/parseFloat("100")));
                var $total_amount = (($tax_amount) + ($frt)) + $frtax;
                
                
                var parsedTotal = parseFloat( ('0' + $total_amount).replace(/[^0-9-\.]/g, ''), 10 );
                var parsedTax = parseFloat( ('0' + $tax_amount).replace(/[^0-9-\.]/g, ''), 10 );
                var parsedSubTotal = parseFloat( ('0' + $total).replace(/[^0-9-\.]/g, ''), 10 );
                
                $('.jQinv_item_total',this).val(parsedTotal.toFixed(2));
                
                subTotal += parsedSubTotal;
                taxTotal += parsedTax;
                balance += parsedTotal;
                
            });
            var discount = parseFloat( ('0' + $('#inv_discount').val()).replace(/[^0-9-\.]/g, ''), 10 );
            var balance_disc = balance - discount;
            
            $(".invE_subtotal span").html(subTotal.toFixed(2));
            $(".invE_tax span").html(taxTotal.toFixed(2));
            $(".invE_discount span").html(discount.toFixed(2));
            $(".invE_balance span").html(balance_disc.toFixed(2));
        }