original_string: private function _mergeAssocArray(&$a1, $a2)
      {
          foreach ($a2 as $k => $v) {
              if ($v === false) {
                  if (isset($a1[$k])) {
                      unset($a1[$k]);
                  }
                  continue;
              }
              $a1[$k] = $v;
          }
      }
code: private function _mergeAssocArray(&$a1, $a2)
      {
          foreach ($a2 as $k => $v) {
              if ($v === false) {
                  if (isset($a1[$k])) {
                      unset($a1[$k]);
                  }
                  continue;
              }
              $a1[$k] = $v;
          }
      }
code_tokens: private function _mergeAssocArray ( & $ a1 , $ a2 ) { foreach ( $ a2 as $ k => $ v ) { if ( $ v === false ) { if ( isset ( $ a1 [ $ k ] ) ) { unset ( $ a1 [ $ k ] ) ; } continue ; } $ a1 [ $ k ] = $ v ; } }
docstring: Merges one array into another, removes values which equal false
  @param $a1 Array by reference that is merged into
  @param $a2 Array that merges into $a1
docstring_tokens: Merges one array into another removes values which equal false