Is this php behaviour explained somewhere in manual? (strings with zeroes comparison)
<p>Why for php</p>

<pre><code>'00' == '0000'
</code></pre>

<p>expression is <code>true</code>?</p>

<p>Is it explained somewhere in manual?</p>

<p><strong>NOTE</strong>:</p>

<p>this:</p>

<blockquote>
  <p>If you compare a number with a string or the comparison involves numerical strings, then each string is converted to a number and the comparison performed numerically</p>
</blockquote>

<p>isn't suitable for the case, both operands are strings.</p>
