PHP preg_replace special characters
<p>I am wanting to replace all non letter and number characters i.e. "/&amp;%#$ etc with an underscore (_) and replace all ' (single quotes) with blank (so no underscore).</p>

<p>So "There wouldn't be any" (ignore the double quotes) would become "There_wouldnt_be_any".</p>

<p>I am useless at reg expressions hence the post.</p>

<p>Cheers</p>
