Dynamically set variables within function-scope?

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May 8th, 2008, 03:12 PM

tagmanadvance

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PHP-General - Dynamically set variables within function-scope?

Is there a variable array similar to the GLOBALS array except within the scope of the current function? I want to dynamically convert an Objects members into variables without having to declare each variable myself. I do not want to use an array. I want to do something like this, except instead of making them global, I would like the variables to be within the scope of the current function.

If that doesn't make sense, I want it to work something like this:

PHP Code:


		
			
<?PHP

     function setObjVars($object) {

          $members = get_object_vars($object);

          foreach($members as $key => $member) {

               $GLOBALS[$key] = $member;

          }

     }



     function foozle() {

          //has object foo

          $foo = new Object();

          $foo->d = "abc";

          setObjVars($foo);

          print "... $d ...";

     }

     

     foozle();

?>

Except instead of setting globals I want to set them as variables within the scope of the "foozle" function.

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May 8th, 2008, 03:24 PM

ManiacDan

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Using a combination of extract and get_object_vars, you can do this:

PHP Code:


		
			
function foozle() {

    $foo = new stdClass();

    $foo->d = "abc";

    extract(get_object_vars($foo));

    print "... $d ...";

}

However, what happens when you have a variable called $foo inside of the object $foo? Are you really confident that NONE of your class member variables are the same as ANY of the variables you'll be using in your PHP script? The closed scope of classes is one of their main benefits.

-Dan

Comments on this post

tagmanadvance agrees: Thanks =)

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May 8th, 2008, 03:40 PM

tagmanadvance

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The object in question is actually a mysql object; the fields being returned are query information. I appreciate the advice and will check all my variable names before implementing this method. Thanks again =)

Last edited by tagmanadvance : May 8th, 2008 at 03:49 PM.

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