Fun with PHP Arrays

gistfile1.php

// Given the following code

function foo(array $bar) {
  $barCount = count($bar);
  
  for ($i = 0; $i < $barCount; $i++) {
    $baz = explode(Validator::DELIMITER, $bar[$i]);
    unset($bar[$i]);
    
    foreach ($bar as $val) {
      $val = trim($val);
      if ($val !== '') {
        $bar[] = $val;
      }
    }
  }
  
  return $bar;
}

// What would have to be in $bar for it to trigger an
// "offset does not exist error" on the line with explode?

unset($bar[$i]);

I think this may be causing the problem; once you've unset an item in the array, $barCount is > than the actual number of items in the array, no?

use a foreach on the outer loop? unsetting inside a foreach is safe (IIRC)

Yeah I also think foreach would solve it.