CODEWITHSUNDEEP
phpvariables
Alex
Alex

Reputation: 68004

Make my function set variables in the current scope

Can it be done?

function my_function(&$array){

  // processing $array here

  extract($array); // create variables but not here
}

function B(){

  $some_array = array('var1' => 23423, 'var2' => 'foo');

  my_function($some_array);

  // here I want to have $var, $var2 (what extract produced in my function)
}

For example parse_str() is able to do this.

Upvotes: 3

Views: 147

Answers (3)

Florian Margaine
Florian Margaine

Reputation: 60747

I guess you need to return a value if you want to make a one-liner.

function my_function($array){

  // processing $array here

  // Return the processed array
  return $array;
}

function B(){

  $some_array = array('var1' => 23423, 'var2' => 'foo');

  // If you don't pass by reference, this works
  extract(my_function($some_array));
}

PHP doesn't allow you to play with the scope of another function, and that is a good thing. If you were in an instanciated object, you could use $this-> to work on a property, but I guess you already know this.

Upvotes: 1

alex
alex

Reputation: 490263

This works, but it doesn't extract into the context it was called, just the global...

function my_function($array){
  foreach($array as $key => $value) {
      global $$key;
      $$key = $value;
  }
}

CodePad.

However, I wouldn't recommend it. It's rarely (but not exclusively never) a good idea to unpack a bunch of stuff into the global scope.

As far as extracting into the scope the function was called, I don't think it's possible, or at least, worth doing.

Upvotes: 1

Ja͢ck
Ja͢ck

Reputation: 173572

Edit Wasn't thinking in my first answer.

The answer is no; you can move the extract call inside your function B, that's about it.

Btw, with some more background of your problem I could improve my answer :)

Upvotes: 2

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