[PHP] Accessing a form variable before the form is posted
My function for generating a select menu for a city sets the select name to form[city_id]. In one of the forms, there is a selection for City in the address details as well as one for the port of destination. If I use the function both the the select name will be form[city_id]. The port of destination selection overwrites the form[city_id] from the selection of City. Is there a way to access the first form[city_id] for assigning to another variable? In short is it possible to access a variable from the form before the form is posted? Best regards, Siva, -- Ma Siva Kumar BSG LeatherLink, Tamil Nadu, India - 600040 Email: [EMAIL PROTECTED] Website: http://www.leatherlink.net/ -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] Accessing a form variable before the form is posted
On Fri, 21 Jun 2002, Ma Siva Kumar wrote: In one of the forms, there is a selection for City in the address details as well as one for the port of destination. If I use the function both the the select name will be form[city_id]. The port of destination selection overwrites the form[city_id] from the selection of City. Use different variable names. Or make your function return a value, and use assignment to handle it. In short is it possible to access a variable from the form before the form is posted? In short, no. The flow is like this: Browser requests page. Webserver serves page, after parsing (if needed). Browser displays page to user, and essentially disconnects from webserver. User fills in form. Server has no clue as of yet. User presses submit. Browser connects to server and sends data. Server now knows about the data. -- Sapere aude My mind not only wanders, it sometimes leaves completely. Never attribute to malice that which can be adequately explained by stupidity. -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] Accessing a form variable before the form is posted
Thanks for the help
Duncan Hill wrote:
Use different variable names. Or make your function return a value, and
use assignment to handle it.
Finally I made the function to take the select name as an optional variable
and used different names for the two. This helped me in other situations
also. Thanks a lot.
johannes reichardt wrote:
If not you´d have big trouble ;)
Huge !!! I would have to add 7 more lines in my file :-).
form action=aösldkfj method=post onsubmit=return checkmystuf();
// this goes in the header
script
function checkmystuff() {
document.forms.city_id.value.toUppercase(); //just a stupid example
return true;
}
I am just beginning to test the waters of web application development and not
using JavaScript much so far. Thanks any way.
Best regards,
Siva
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