title: Php Regex exclude a certain pattern already matched
body: <p>Hi there I need a hand with the pattern below:</p>
  
  <pre><code>(?&lt;=\")([0-9\.\/])+(?=\")
  </code></pre>
  
  <p>Content</p>
  
  <pre><code>&lt;ul&gt;
  &lt;li&gt;&lt;a href="../"&gt;..&lt;/a&gt;&lt;/li&gt;
  &lt;li&gt;&lt;a href="1.0/"&gt;1.0/&lt;/a&gt;&lt;/li&gt;
  &lt;li&gt;&lt;a href="1.1/"&gt;1.1/&lt;/a&gt;&lt;/li&gt;
  &lt;li&gt;&lt;a href="1.23/"&gt;1.23/&lt;/a&gt;&lt;/li&gt;
  &lt;/ul&gt;
  </code></pre>
  
  <p>The above pattern selects <code>../, 1.0/, 1.1/, 1.23/</code></p>
  
  <p>I <strong>don't</strong> want to match <code>../</code> but any permutation of number,period and / should match.</p>
  
  <p>Give me a hand please.</p>
  
  <p>Thanks as always.</p>