What does "->" means in PHP
<blockquote>
  <p><strong>Possible Duplicate:</strong><br>
  <a href="http://stackoverflow.com/questions/2316370/what-does-this-php-syntax-mean-var1-var2">What does this PHP syntax mean: $var1-&gt;$var2</a><br>
  <a href="http://stackoverflow.com/questions/3737139/reference-what-does-this-symbol-mean-in-php">Reference - What does this symbol mean in PHP?</a>  </p>
</blockquote>



<p>I'm looking at a php framework's code, and now and then the symbols "->" appear... for example:</p>

<p><code>
$controller-&gt;permissionCheck($ret);
</code></p>

<p>So what I would like was that someone could explain to me what "->" stands for and what is used to?</p>

<p>Thank you.</p>
