parsing [php] tags

[sde]

ok, i am tuning up the tutorial viewer now and recreating the parsing that vbulletin does. it's not as easy as just copying over the functions unfortunately because there is so much other stuff happening in vbulletin.

i need to get the text in between the [ p h p ] and [ / p h p ] tags into a variable and i am set. it needs to look for one set of tags at a time in case there are multiple php tags in a post.

PHP Code:

<?
$post="here is some code [ph p]$i=1;[/ ph p]";
?>

how can i parse $post and get '$i=1;' into its own variable?

[abc123]

well, the regexp to match inside php tags would be:

 ".*?\[php\](.*?)\[/php\].*?"

note that given "[ph p]abc[/ph p]xxx[ph p]123[/ph p]" you would get my wonderful name; "abc123".

note that "\" is escaping the "[" and "]" so if "\" is an escape in php ( which it probably is ) you'll need to escape that first. but does php even use quotes for regexps? i can't remember.

[sde]

thanks, .. yes php uses quotes for regex .. there is a problem with that though because i don't want my variable to equal 'abc123' it needs to parse each set of tags individually .. hrrm . i made a bbs a while back and i thought i figured this one out, but i forgot how .. i'll keep trying to re-invent the wheel

thanks for the help =)

[abc123]

Originally posted by sde
thanks, .. yes php uses quotes for regex .. there is a problem with that though because i don't want my variable to equal 'abc123' it needs to parse each set of tags individually .. hrrm . i made a bbs a while back and i thought i figured this one out, but i forgot how .. i'll keep trying to re-invent the wheel

thanks for the help =)

then split the input based on [/php] and work on that basis, i forget what perl regexps look like so i can't really remember the grouping but i think you'll find that way ( splitting based on end tag ) is easier then dealing with possibly unlimited amount of tags.

[joe_bruin]

i would do this using php's explode() and split() functions.

[sde]

well i got it working now. my original idea was to use the exact vbulletin parsing function so the code would highlight just as it does in a vb post.

the problem was that i was running the script outside of the /forum directory so the includes were messing things up.

after a lot of troubleshooting and some help from another, .. i found a pretty cool function that is so simple, but made it work.

the idea here is that i needed to include a file called 'global.php' from the /forum directory. global.php had many includes in it which were reletive to the forum directory.. so naturally if i included that file on a level below /forum , the paths would not match when executed.

here is the solutions:

PHP Code:

<?
// change directory to the forum directory
chdir("forum/");

// execute global.php inside its own directory
include("./global.php");

// change the current directory back to where the current script running is
chdir("./");
?>

i learn something everyday.