title: How to rename sub-array keys in PHP?
body: <p>When I var_dump on a variable called $tags (a multidimensional array) I get this:</p>
  
  <pre>Array
  (
      [0] => Array
          (
              [name] => tabbing
              [url] => tabbing
          )
  
      [1] => Array
          (
              [name] => tabby ridiman
              [url] => tabby-ridiman
          )
  
      [2] => Array
          (
              [name] => tables
              [url] => tables
          )
  
      [3] => Array
          (
              [name] => tabloids
              [url] => tabloids
          )
  
      [4] => Array
          (
              [name] => taco bell
              [url] => taco-bell
          )
  
      [5] => Array
          (
              [name] => tacos
              [url] => tacos
          )
  )
  </pre>
  
  <p>I would like to rename all array keys called "url" to be called "value". What would be a good way to do this?</p>