PHP variable containing PHP code itself

santo

ok, this is not easy to explain, I'll try none the less:

I have a class.page.php which builds up my page. Each page consists of 3 columns, 1 left, 1 bigger center column, and a right one.

The colums left and right contain boxes, just like on every other 3column-styled website. No problems so far ;-)

These boxes can either contain regular text, or, when the option isfunction is set to YES, the box can contain PHP-code.

My question is: how can i execute the PHP-code in the box? In my class.page.php file, I check if the box argument isfunction=='YES'. If it's 'NO', i just place the box content in my template and that's that. But when isfunction=='YES', I first have to manage to execute the code it contains, capture the result in a var, and pass that var to my template engine.

If anyone even remotely has a clue on how to do this, don't hesitate to reply!!

Thanks in Advance

laserlight

You can use [man]eval/man, but proceed with extreme caution.

Shrike

Originally posted by laserlight
You can use [man]eval/man, but proceed with extreme caution.

[MAN]eval[/MAN] scares me.
How long has this [MAN] tag been around? 🙂

ShawnK

can you please explain eval() , I am having the EXACT same problem!

ShawnK

Scratch that...I fixed it myself.

Santo, use this function, I use it and it works great for me:

function content(){

global $type;
global $content;

if($type == "plaintxt"){
         echo $content;
         }
elseif($type == "php"){
         eval $content;
         }
else {
         die();
     }

}

This is how I use it:

switch ($pg) {
// --------------------------------
default:
   echo "";
   $type = "plaintxt";
   $content = "a";
   $sub_title = "Main";
   break;
// --------------------------------
case "main":
   echo "";
   $type = "plaintxt";
   $content = "a";
   $sub_title = "Main";
   break;
// --------------------------------
case "login":
   echo "";
   $type = "plaintxt";
   $content = "b";
   $sub_title = "Login";
   break;
// --------------------------------
}

All you have to do is in your switch, define type...if it says 'plaintxt' then it will just echo() what you put for content, but if you put 'php' it will eval() it.

MAKE SURE THAT WHEN YOU USE 'PHP' THAT YOU WRITE IT LIKE YOU WOULD IN HTML!?

example:

If you want to do this:

if($you == "cool"){
echo "I am so cool!";
} else {
echo "I am not so cool";
}

Then you have to do this:

$content = "if($you == \"cool\"){echo \"I am so cool!\";} else {echo \"I am not so cool\";}";

And in your template page just put <? content(); ?> where you want it to appear.

Also, if you want it mixed between plain text and php then you are going to have to echo all the plain text.

I hope it helps...

santo

tnx for the help peeps, i got it working!!