title: Why are php array keys case sensitive?
body: <p>While looking through some code and attempting to fix some issues I came to a question. Why are PHP array keys case sensitive? It would seem beneficial to have</p>
  
  <pre><code>$array = array(
     "Key"=&gt;"Value",
     "key"=&gt;"Value",
  )
  </code></pre>
  
  <p>be the same key. Can someone explain to me the benefit of having those two keys separated?</p>