TESTING REGEXP for closing html tags

gistfile1.txt

<?php 
$mypattern = "([\w-.]+)+(:\d+)?(/([\w/_\-.]*(\?\S+)?)?)?(.*)?";
$pattern = '[a-zA-Z0-9&?_.,=%\-\/#]';
$url = "http://formaciononline.nccextremadura.org#formacion-desempleados";
$newurl = preg_replace('@(https?://'.$pattern.'*)@i', '<a href="$1">$1</a>', $url);
//echo "Old URL-> ".$url;
//echo "<br/>";
//echo "New URL -> ".htmlspecialchars($newurl);



$texto = 
"<div> lorem ipsum<br/>
 thing </ div ><p>más cosas >  que cosas< / p ><table><tr><td></td >< /tr></TABLE>";
echo "<br/>";

echo htmlspecialchars(preg_replace("@(<\s*(br)*\s*\/\s*(p|td|tr|table|div)*\s*>)+?@i","$1JEVENTS",$texto));