Vexed's Blog

怎麼覺得我好久沒寫 PHP 了 ... 。

<?php
  $arr = array(1, 2);
  print_r($arr); // Array ( [0] => 1 [1] => 2 )

  $arr[] = 3;
  print_r($arr); // Array ( [0] => 1 [1] => 2 [2] => 3 ) 

  $ref =& $arr[];
  $ref = 4;
  print_r($arr); // Array ( [0] => 1 [1] => 2 [2] => 3 [3] => 4 )

  $ref = 5;
  print_r($arr); // Array ( [0] => 1 [1] => 2 [2] => 3 [3] => 5 )
?>