sum (+) in php

[chrisschristou]

hello dears daniweb friend
i'm trying to get total price in php with the below code but i get only the shipping price when i request echo total what is wrong in my code ???

<form name="valide" method="POST" action="<?php echo $editFormAction; ?>">
          <label for="Sub total"></label>
          <label for="shipping">Sub total</label><input name="subtotal2" type="text" value="<?php echo number_format($row_total['sub_total'], 2, '.', ''); ?>" readonly disabledid="subtotal2">
          <label for="shipping">Shipping</label>
           <input name="shipping" type="text" id="shipping" value="<?php echo number_format($row_total['shipping'], 2, '.', ''); ?>" readonly>
          <label for="total"></label>
          <select name="shipping">
          <?php $shipping1='20.78';
          $shipping2='12.89';
          $shipping3='0.00';
          $itemprice=number_format ($row_panier['prix'], 2, '.', '');
          ?>
          <?php $totalpay= number_format ($row_panier['prix'], 2, '.', '')+($shipping1);?>
            <option value="20.00"><?php echo $shipping1 ?> </option>
            <option value="0.00"><?php  echo $shipping2 ?> </option>
            <option value="12.00"><?php echo $shipping3 ?></option>
          </select>
          <label for="shipping">Total</label><input name="total" type="text" id="total" value="<?php echo $shipping1+number_format ($row_panier['subtotal'], 2, '.', ''); ?>" readonly>
          <input name="total" type="text" value="<?php echo $totalpay; ?>" readonly>

[pritaeas]

1. You are mixing values with formatted values (doubles and strings).
2. what is $row_panier?

[minitauros]

For as far as I know, when you do something like this:

<?php echo $shipping1+number_format ($row_panier['subtotal'], 2, '.', ''); ?>

it is not just an echo that is taking place; rather the script is parsed one by one and $row_panier['subtotal'] is added to $shipping1. I think this can easily be fixed by containing your echo in parentheses, example:

<?php echo ($shipping1 + number_format($row_panier['subtotal'], 2, '.', '')); ?>

[chrisschristou]

$row_panier?

is DB table
i have try this

<?php echo ($shipping1 + number_format($row_panier['subtotal'], 2, '.', '')); ?>

still same i get only

$shippping1

in navigator

[minitauros]

You could try

<?php  echo number_format($shipping1 + $row_panier['subtotal'], 2, '.', ''); ?>

instead of

    <?php echo ($shipping1 + number_format($row_panier['subtotal'], 2, '.', '')); ?>

as it makes more sense to number format an int instead of number formatting an int to a string and then adding it to another int (as pritaeas says). Of course, both variables need to be set in order to do a sum. If this doesn't work, you could try checking for the presence of a value for both variables, for example:

<?php
echo '<p>The value of $shipping1 is:<br>';
var_dump($shipping1); echo '</p>';

echo '<p>The value of $row_panier[subtotal] is:<br>';
var_dump($row_panier['subtotal']); echo '</p>';

[chrisschristou]

please help me with the same way the last post din't change anything

[minitauros]

Could you add the following code right before your Total input and tell us what it says?

<?php
echo '<p>$shipping1 is now:';
var_dump($shipping1); echo '</p>';

echo '<p>$row_panier[subtotal] is now:';
var_dump($row_panier['subtotal']); echo '</p>';

echo '<p>The same stuff, number formatted is now:';
var_dump(number_format($shipping1 + $row_panier['subtotal'], 2, '.', '')); echo '</p>';

[chrisschristou]

it done this one $shipping1 is now:string(5) "20.78"

$row_panier[subtotal] is now:NULL

The same stuff, number formatted is now:string(5) "20.78"
and the old result stay same the code is below

<?php $totalpay= number_format ($row_panier['prix'], 2, '.', '')+($shipping1);?>
            <option name="express" value="20.00"><?php echo $shipping1 ?> </option>
            <option name="free" value="0.00"><?php  echo $shipping2 ?> </option>
            <option name="zunaphone" value="12.00"><?php echo $shipping3 ?></option>
          </select><br>
         <?php echo '<p>$shipping1 is now:';
var_dump($shipping1); echo '</p>';
echo '<p>$row_panier[subtotal] is now:';
var_dump($row_panier['subtotal']); echo '</p>';
echo '<p>The same stuff, number formatted is now:';
var_dump(number_format($shipping1 + $row_panier['subtotal'], 2, '.', '')); echo '</p>';?>
          <label for="shipping">Total</label><input name="total" type="text" id="total" value="<?php echo ($shipping1+number_format ($row_panier['subtotal'], 2, '.', '')); ?>" readonly><br>
          <label for="total">Total</label><input name="total" type="text" value="<?php echo $totalpay; ?>" readonly>

[AARTI SHRIVAS]

please check $row_panier has value or not i think it taking value from database so check you query and query data having value or not

[diafol]

php has loose typing so all the following should work...

echo number_format('3.456' + 1.457, 2, '.', '');
echo number_format('3.456' + NULL, 2, '.', '');
echo number_format(3.456 + NULL, 2, '.', '');

If however you have uninitialised variables...

echo number_format('3.456' + $x, 2, '.', '');
//Notice: Undefined variable: x in...

Or...

$x = array();
echo number_format('3.456' + $x['me'], 2, '.', '');
//Notice: Undefined index: me in... 

You should get error messages as commented

[minitauros]

Apparently your $row_panier['subtotal'] has no value. I guess you could start by finding out why that is =).

[chrisschristou]

i would like to thank Mr Diafol and Mr Manitauros and Aarti all yours help was helpfull, i undestund my problem is cause i mixed format number and integer..., it is solved with this code

<?php $shipping1='20.78';
          $shipping2='12.89';
          $shipping3='0.00';
          ?>
          <?php $totalpay=  ($row_total['sub_total'])+($shipping1);?>
            <option name="express" value="20.00"><?php echo $shipping1 ?> </option>
            <option name="free" value="0.00"><?php  echo $shipping2 ?> </option>
            <option name="zunaphone" value="12.00"><?php echo $shipping3 ?></option>
          </select><br>
          <label for="shipping">Total</label>
          <input name="total" type="text" value="<?php echo number_format ($totalpay, 2, '.',''); ?>" readonly><br>