Code Forums - View Single Post - Can't Get a Variable to Increment after a Post

Blumengruss · 07-31-2006, 03:57 PM

This is my first post ever on a PHP forum. It's great to feel like there might be some help for my fried brain.

I am working on a site that includes a weekly calendar that will be connected to a database. The script I've written includes a function so that when the weekly calendar loads, it always starts with the last Monday. This is working.

I wrote the script also intending that the visitor can scroll forward or back to another week. This is done by means of a variable called "$scroll". If $scroll = 2, for example, the week that that is displayed is 2 weeks in the future. This is working, too.

I know it sounds dumb, but I can't get the value of $scroll to increment after the visitor slects from a menu how many weeks they want to scroll ahead and then hits the submit button. The value of $scroll goes to whatever is selected, but it never increments. It's like it gets reset to 0 each time there is a post.

I think these are the relevant parts of my code:

$increment=$_POST['increment'];
$scroll=$scroll+$increment;

(code displaying the calendar table...)

<form action="reservations.php" method=post>
Scroll Forward by
<select name="increment">
<option value="1">1 Week</option>
<option value="2">2 Weeks</option>
<option value="3">3 Weeks</option>
<option value="4">4 Weeks</option>
</select>
<input type="submit" name="scroll_forward" value="Go">
</form>

I hope I've explained enough for someone to help.

Many thanks in advance.

07-31-2006, 03:57 PM	#1 (permalink)
Blumengruss Recruit Join Date: Jul 2006 Location: Philadelphia, Pennsylvania Posts: 6	Can't Get a Variable to Increment after a Post This is my first post ever on a PHP forum. It's great to feel like there might be some help for my fried brain. I am working on a site that includes a weekly calendar that will be connected to a database. The script I've written includes a function so that when the weekly calendar loads, it always starts with the last Monday. This is working. I wrote the script also intending that the visitor can scroll forward or back to another week. This is done by means of a variable called "$scroll". If $scroll = 2, for example, the week that that is displayed is 2 weeks in the future. This is working, too. I know it sounds dumb, but I can't get the value of $scroll to increment after the visitor slects from a menu how many weeks they want to scroll ahead and then hits the submit button. The value of $scroll goes to whatever is selected, but it never increments. It's like it gets reset to 0 each time there is a post. I think these are the relevant parts of my code: $increment=$_POST['increment']; $scroll=$scroll+$increment; (code displaying the calendar table...) <form action="reservations.php" method=post> Scroll Forward by <select name="increment"> <option value="1">1 Week</option> <option value="2">2 Weeks</option> <option value="3">3 Weeks</option> <option value="4">4 Weeks</option> </select> <input type="submit" name="scroll_forward" value="Go"> </form> I hope I've explained enough for someone to help. Many thanks in advance.