[PHP] Changing variables in a text file

[Luis Lebron]

I have a text file with a series of project variables.

For example
$var1=;
$var2=;
$template=blue;
$anothervar=foo;

Let say I need to change $template=blue; to $template=red;. How can I do
that keeping the rest of the file intact?


thanks,


Luis 

Re: [PHP] Changing variables in a text file

[Marek Kilimajer]

If you know what is suposed to be in the file you can simply build up a 
new file. If you don't know what is in there but only that you need to 
change this to that, use file functions and regexes. You might also 
consider using an array instead of plain variables, so your file will become

$config['var1']=;
$config['var2']=;
$config['template']=blue;
$config['anothervar']=foo;
This will make updates easier, as you know you only need to write 
everything in $config.

Luis Lebron wrote:

I have a text file with a series of project variables.

For example
$var1=;
$var2=;
$template=blue;
$anothervar=foo;
Let say I need to change $template=blue; to $template=red;. How can I do
that keeping the rest of the file intact?
thanks,

Luis 

 



--
PHP General Mailing List (http://www.php.net/)
To unsubscribe, visit: http://www.php.net/unsub.php

RE: [PHP] Changing variables in a text file

[John W. Holmes]

 I have a text file with a series of project variables.
 
 For example
 $var1=;
 $var2=;
 $template=blue;
 $anothervar=foo;
 
 Let say I need to change $template=blue; to $template=red;. How
can I
 do
 that keeping the rest of the file intact?

You have to write the whole file over. So read the entire file into a
string. If you know you're looking to match $template, then you can use
a preg_replace() call.

$new_value = red;
preg_replace('/\$template=[^];/','$template='.$new_value.';',$text)
;

or something similar. Adapt to your needs. 

---John W. Holmes...

PHP Architect - A monthly magazine for PHP Professionals. Get your copy
today. http://www.phparch.com/



-- 
PHP General Mailing List (http://www.php.net/)
To unsubscribe, visit: http://www.php.net/unsub.php