PHP, JavaScript & HTML

[kattz]

Hello,
I am working on a piece of code which currently does the following;
- a csv file is opened, its contents are exploded and placed into a table (using PHP)
- i have added a checkbox to the options which when checked need to send the cost of the selection to the total cost field
-- i am trying to use javascript to calculate the total cost and I think I need to use $HTTP_POST_VARS
The rouble is I don't know how and where to use $HTTP_POST VARS.

Here is a small segment of my code, any ideas where I can put $_HTTP_POST_VARS so my javascript function will work???

for ( $loop=0; $loop<count($my_array); $loop++ )
{
	$i = 0;
	$element = $string;
	$code = my_array($element[0]);
	$title = my_array($element[1]);
	$cost = my_array($element[2]);
	$total = 0.00;

	echo "<tr>
	<td><input type=\"checkbox\"name=\"selection[]\"onclick=\"calc_cost()\">$title[$i]</td>
	<td>$code[$i]</td>
	<td>\$$cost[$i]</td>
	</tr>";
}

}

	echo"<tr><td colspan=\"2\"><b>Total</b></td>
	<td colspan=\"2\"><b>$</b><input name=\"COST\" type=\"text\" readonly=\"readonly\" 		value=\"$total\"></td></tr>";

fclose($fh);
?>

Any ideas????????????????????????????
thanks in advance
kattz
😕

[sarahk]

I'm not going to get into the coding side of things but instead to get you to consider your design.

There is no problem with getting php to get the data, put it into arrays and then to output it to the browser looking like javascript. That CAN be a good strategy. I'm not sure it is in this case.

Why not use PHP to do all the processing and then just output the finished product.

Remember that PHP processes on the server and spits out HTML (which may be javascript), XML etc.

Javascript runs only on the browser so all it can see is the text output by the server. post_vars etc mean nothing and are not accessible.

If you are not sure it PHP is outputting the right text use your browser's "view source" option to see the code.