A numeric string as array key in PHP
<p>Is it possible to use a numeric string like <code>"123"</code> as a key in a PHP array, without it being converted to an integer?</p>

<pre><code>$blah = array('123' =&gt; 1);
var_dump($blah);
</code></pre>

<p>prints</p>

<pre><code>array(1) {
  [123]=&gt;
  int(1)
}
</code></pre>

<p>I want</p>

<pre><code>array(1) {
  ["123"]=&gt;
  int(1)
}
</code></pre>
