Forms write to file containing variables

[Anon]

Ok.

I have been studying out of a book called PHP Fast & Easy Web Development. So need less to say, I am learning php.

I have a qustion.

here is my situation:

I have a file that contains some global variables. I want to have a web based form be able to change them variables if needed. How could I go about this?

I was thinking something like..

<?php

//Absolute path to the web site
$path_absolute = "$path_absolute_text";

?>

And then in the form have the input field be path_absolute_text but I keep thinking and this wont work. My brain seems to stop there without an answer.

can someone please tell me how I could accomplish writing to this file to control what the variable is actually holding?

If anyone can help I am grateful..
Thanks

Joseph Lukic

[cornelalexa]

ok.here is a tip.
First get from the file you variable.I skip this step.Will be somthing like this;
$first_name=getfromfile("first_name"); //a dummy function

Now how we put this into a form? Easy.

<input type=text name="first_name" value="<?php echo $first_name ?>">

Now if this input text is into a form when that is submited you will got EXACTLY the same variable but with a value.You can test that.If $first_name is not set then:READ'IT from the file.Else the user has make some input.
Hope to help.

[Anon]

Okay. This is helping me more.

But now..

okay here is one file:

globals.php

it contains:

<?php

//Absolute path to the web site
$path_relative=getfromfile("path_relative");

?>

(First I dont understand what we are doing.. I see the function getfromfile so I'm assuming that is looking to get $path_relative from a file called path_relative? Please let me know about that someone.)

Now we have another file:

form.php

and it contains:

<form action="" method="post">

<input type=text name="first_name" value="<?php echo $path_relative ?>">

</form>

Now what goes in the action attribute? globals.php since that is where we're trying to write to?

Any detailed help posted. I AM VERY GRATEFUL.

Thank You!

[cornelalexa]

Hi.
You got right.
In the action of form you can put any script that process the data from the form.IN your case globals.php.
If no action is given then all data is sended to "self" wich is the form.php in this case.
The function getfromfile() is just a dummy one.You can get/set your $path_relative in any way you want.