Substitute Text in Many Files

dougp23 · 03-11-2010, 06:28 PM

I have this PHP Program I have been hobbying for years. Started in old PHP3 early PHP4. So with the newer PHP, things are starting to break!

I have this string:

session_is_registered('UserID')

And I need to convert to this:

isset($_SESSION['UserID'])

in more than 200 scripts in my directory. I have been toying with perl (in a copy of the dir of course in case I really screw things over, lol) but am not gettig too far. The new code needs to swap ( ) for [ ] and i'm just all hung up!

I am getting lost in Perl, I have this, but it does not substitute so I am missing something:

perl -i.bak -pe "s/session_is_registered$\'UserID\'$/isset$\\\$_SESSION\[\'UserID\'\]$/g" *.php

Would appreciate any help! (Even if you think something is better than Perl at this!)

troop · 03-11-2010, 06:31 PM

Code:

perl -i.bak -pe "s/session_is_registered\('UserID'\)/isset\(\\\$_SESSION\['UserID'\]\)/g" *.php

is working for me.

dougp23 · 03-11-2010, 06:38 PM

Still not working for me...

Does it matter that the line of code begins with a !:

if(!session_is_registered('UserId') || $_SESSION['UserType'] != "A")

troop · 03-11-2010, 06:46 PM

Code:

perl -i.bak -pe "s/session_is_registered\('UserID'\)/isset\(\\\$_SESSION\['UserID'\]\)/gi" *.php

dougp23 · 03-11-2010, 06:49 PM

Thank you sssoooo much! I guess the i after the g was the hangup! I had tried at least 15 different ways!

Thanks again.

Tinkster · 03-11-2010, 06:56 PM

Code:

$ cat php.sed 
s/session_is_registered('UserID')/isset($_SESSION['UserID'])/g
$ cat 2test.php test.php
session_is_registered('UserID')
session_is_registered('UserID')
$ sed -i -f php.sed 2test.php 
$ cat 2test.php test.php
isset($_SESSION['UserID'])
isset($_SESSION['UserID'])
$

dougp23 · 03-11-2010, 07:00 PM

Quote:

Originally Posted by Tinkster

Code:

$ cat php.sed 
s/session_is_registered('UserID')/isset($_SESSION['UserID'])/g
$ cat 2test.php test.php
session_is_registered('UserID')
session_is_registered('UserID')
$ sed -i -f php.sed 2test.php 
$ cat 2test.php test.php
isset($_SESSION['UserID'])
isset($_SESSION['UserID'])
$

Very interesting. I had been trying sed as well...but this just looks so simple, I'm not sure how I missed it.

Tinkster · 03-11-2010, 07:02 PM

Quote:

Originally Posted by dougp23

Very interesting. I had been trying sed as well...but this just looks so simple, I'm not sure how I missed it.

The 'trick' is to stick the pattern(s) into a file;
saves you having to escape "pesky" things like ' ... ;}

Cheers,
Tink