Modify Variables

sheephat

Hello Friends, once again I need your assistance.

I have a script and it contains a number of variables, say for eg.

$apple = 3;
$triangle = 7;
$london = 12;

is there a function in php that can allow me to physically change the value eg, on a new php script I have a form or something that will allow me to change $apple to say 456 and then when I open the variable php the value has been changed in the script its self, so the new script reads

$apple = 456;
$triangle = 7;
$london = 12;

Thanks in advance for you help,
Sheephat

halojoy

one thing is for sure

If a script should use some values,
there has to be somewhere to store these values

The usual method we can see using 'config.php' combined with include( ' config.php' );
Now many other php pages at a site can include this same config.php.

To change values in a config.php ( or any other php )
there are only 2 methods:

Say you have a page called 'myvalues.php'
1. use an editor to edit your 'myvalues.php'
2. use a form and let the form processor script write a new version of 'myvalues.php'

We see both methods used for installing php applications.
Either you have to edit 'config.php'
or the install.php will automatically write in your submitted 'site name', 'dbuser', 'dbpass'
into 'config.php'.

rulian

I'm not quite following what your trying to do, but there are a couple of ways to share variables between pages.
The easiest would be using sessions, reference $SESSION variable if you are not familiar with them,
the next woudl be $COOKIE which works similar to $SESSION
the third would be trickier depending on what you are trying to do, but using the $GET method to pass variables between pages.

Other then that, you can as suggested use a median to transport the variables like a database, you can even use text files but I wouldnt recommend them.

Gives us a clearer idea of what you are trying to accomplish and I can provide more specific answers

bradgrafelman

I think halojoy's post was on-track - one method is certainly re-writing the config.php script that contains variables.

If your variables are constantly changing, however, you might consider storing them in a MySQL database instead.

sheephat

It was more on like a on/off feature

such as that featured in the Joomla sites, where you can turn your site on and off in the control panel,

I assumed that there was a variable in the config.php that said for eg. $siteopen=1; and that i could change this to $siteopen=0; using a simple form, like that in the joomla controlpanel.

Does that make more sense?

TheDefender

sheephat wrote:
It was more on like a on/off feature

such as that featured in the Joomla sites, where you can turn your site on and off in the control panel,

I assumed that there was a variable in the config.php that said for eg. $siteopen=1; and that i could change this to $siteopen=0; using a simple form, like that in the joomla controlpanel.

Does that make more sense?

This is actually probably stored in a database (or cookies/sessions based)... Is there any particular reason you haven't considered that option? What you're thinking would cause a lot of rewrites to a file that should normally remain static...

sheephat

No reason, i just thought it would be easier to just do it like that, as i have a page which defines siteopen=1; when it =0; it automatically forwards you to the site closed page, i wanted to add a feature in my control panel that allowed me to change it without opening the file and uploading it to the server.

halojoy

TheDefender wrote:
This is actually probably stored in a database

This is right.

The database can be MySQL or such, when MySQL write into a file in DB data dircetory.
Or it can be some other file, that your script write it into (flatfile).
Like this in
my_data_file.php

<?php exit() ?>
siteopen|1

Horizon88

What I'd do sheephat, is move your config variables into a database, then rewrite your single config file to pull them from the database instead - then all your current code should still work, and it gives you the functionality of using a database instead of dicking about with permissions and system calls and whatnot to try and secure your config file.