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Experts:<br />
<br />
How do I fix a &quot;Undefined offset: 1&quot;? &nbsp; What exactly is it? &nbsp; I do not see a visible error in my code...<br />
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Thanks for your help!<br />
<br />

<pre><code id="code-10-27298431-1">preg_match('%&lt;tr&gt;\s*&lt;td align=&quot;center&quot;&gt;\s*&lt;a href=&quot;http:\/\/www\.website\.com\/CatList\.asp&quot;&gt;&lt;span class=&quot;prodListPage_catName&quot;&gt;Product Categories&lt;\/span&gt;&lt;\/a&gt;&lt;span class=&quot;prodListPage_catName&quot;&gt;\&amp;gt&lt;\/span&gt;&lt;a href=&quot;.*?&quot;&gt;&lt;span class=&quot;prodListPage_catName&quot;&gt;(.*?)&lt;\/span&gt;&lt;\/a&gt;&lt;span class=&quot;prodListPage_catName&quot;&gt;\&amp;gt&lt;\/span&gt;&lt;a href=&quot;.*?&quot;&gt;&lt;span class=&quot;prodListPage_catName&quot;&gt;(.*?)&lt;\/span&gt;&lt;\/a&gt;&lt;span class=&quot;prodListPage_catName&quot;&gt;\&amp;gt&lt;\/span&gt;&lt;a href=&quot;.*?&quot;&gt;&lt;span class=&quot;prodListPage_catName&quot;&gt;(.*?)&lt;\/span&gt;&lt;\/a&gt;\s*&lt;\/span&gt;&lt;\/td&gt;\s*&lt;\/tr&gt;%',$buffer2,$matches2001);

    $category = $matches2001[1];     //Undefined offset: 1 here
    $subcategory = $matches2001[2];    //Undefined offset: 2 here
    $subsubcategory = $matches2001[3];     //Undefined offset: 3 here</code></pre>
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Experts:

How do I fix a "Undefined offset: 1"?   What exactly is it?   I do not see a visible error in my code...

Thanks for your help!

(CODE)

How do I fix &quot;Undefined offset: 1&quot;

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How do I fix &quot;Undefined offset: 1&quot;

How do I fix "Undefined offset: 1"