Php string processing
<p>I need to find <code>&lt;p&gt;</code> tag inside a string. Then I want to store the string from (including) <p> tag into another variable.</p>

<p>For example I have string name firstString;</p>

<p>firstString = <code>"&lt;div id='tab-1'&gt;&lt;p&gt;This is first string&lt;/p&gt;&lt;/div&gt;"</code></p>

<p>I want second string to be</p>

<p>secondString = <code>"&lt;p&gt;This is first string&lt;/p&gt;"</code></p>

<p>I need only first <code>&lt;p&gt;</code> tag.</p>
