Question

I was wondering if its possible, to loop through an array but have each key as a variable?

My current code is below, with an example expected output:

<?php

   $arr = array(array('id' => 24, 'name' => 'luigi'), array('id' => 12, 'name' => 'luiginsd'));

   foreach ($arr as $value) {

      echo $id . '<br />';

   }

/*

which would output:

24<br />
12<br />

*/

?>

All help is appreciated.

Answer 1

Use extract:

foreach ($arr as $value) {
   extract($value);
   echo $id.'<br />';
}

extract will iterate through an associative array and initialize a variable (presumably using variable variables) of the same name as the key in the array in the current scope containing the associated value.

Just for fun, here’s what I think extract does under the hood:

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

Note that extract does not necessarily import these variables into global scope, they are imported into the current symbol table.