$re = '/3Dcache*:().*%252B/';
$str = '<li class="g"><h3 class="r"><a href="http://maps.google.com/maps?um=1&ie=UTF-8&fb=1&gl=us&cid=12546501552342514458&q=Malheur+National+Forest&sa=X&ei=tsCpU7y-HM28oQSa9IIQ&ved=0CBUQtQMwAA"><div>Map for <b>Malheur National Forest</b></div></a></h3><div class="mlmcm" style="margin:16px 0"><a href="http://maps.google.com/maps?um=1&ie=UTF-8&fb=1&gl=us&cid=12546501552342514458&q=Malheur+National+Forest&sa=X&ei=tsCpU7y-HM28oQSa9IIQ&ved=0CBYQtgMwAA"><img height="233" src="/maps/vt/data=VLHX1wd2Cgu8wR6jwyh-km8JBWAkEzU4,6YhdV0BKWTh3M22uoHrEdeI_eUVZLHdlKYEtPFQ8P__WuSea3AFMDTBKDIzC2UNN2GnK4eVSnL54ZIUZDihddu9CI74my1jHESqjX7czgrXEHjDCIHFYymlYhBU" style="border:0;padding:1px" width="550"/></a></div><h3 class="r"><a href="/url?q=http://www.fs.usda.gov/malheur&sa=U&ei=tsCpU7y-HM28oQSa9IIQ&ved=0CBgQFjAA&usg=AFQjCNEd9QcHqk_lxZTz9AcslMsyLwA9XQ"><b>Malheur National Forest</b> - Home - USDA Forest Service</a></h3><div class="s"><div class="kv" style="margin-bottom:2px"><cite>www.fs.usda.gov/<b>malheur</b></cite><div class="am-dwn-arw-container">‎<div aria-expanded="false" aria-haspopup="true" data-ved="0CBkQ7B0wAA" onclick="google.sham(this);" style="display:inline" tabindex="0"><span class="am-dwn-arw"></span></div><div class="am-dropdown-menu" role="menu" style="display:none" tabindex="-1"><ul><li class="am-dropdown-menu-item"><a class="am-dropdown-menu-item-text" href="/url?q=http://webcache.googleusercontent.com/search%3Fq%3Dcache:0bqZkM4XQqIJ:http://www.fs.usda.gov/malheur%252BMalheur%2BNational%2BForest%26hl%3Den%26%26ct%3Dclnk&sa=U&ei=tsCpU7y-HM28oQSa9IIQ&ved=0CBsQIDAA&usg=AFQjCNHcxq8MhoHz9__jp8pwHUrw2RPqCQ">Cached</a></li><li class="am-dropdown-menu-item"><a class="am-dropdown-menu-item-text" href="/search?ie=UTF-8&q=related:www.fs.usda.gov/malheur+Malheur+National+Forest&tbo=1&sa=X&ei=tsCpU7y-HM28oQSa9IIQ&ved=0CBwQHzAA">Similar</a></li></ul></div></div></div><span class="st">The 1.7 million acre <b>Malheur National</b> For est is located in the Blue Mountains of <br>
Eastern Oregon. The diverse and beautiful scenery of the <b>forest</b> includes high ...</br></span><br><div style="margin-top:13px"><table width="100%"><tr><td style="padding-right:4px;padding-top:1px" valign="top" width="24"><img src="/mapfiles/marker-noalpha.png"/></td><td valign="top" width="485"><span style="vertical-align:top">Canyon City, OR 97820<br style="display:block"><span class="nobr">(541) 575-3000</span></br></span></td><td style="padding-top:2px;padding-left:9px" valign="top"><div style="float:right"><div class="star" style="float:none"><div style="width:0px"> </div></div></div><div style="clear:both"><a class="fl nobr" href="/url?q=https://plus.google.com/105110280666932757061/about%3Fhl%3Den%26socfid%3Dweb:lu:unknown:localdetails%26socpid%3D1&sa=U&ei=tsCpU7y-HM28oQSa9IIQ&ved=0CCAQ4gkwAA&usg=AFQjCNEo8ifBqVIqKICfCb2t4c6TZYk5mA">2 reviews</a></div></td></tr></table></div></br></div><table cellpadding="0" cellspacing="0" class="slk" style="border-collapse:collapse;margin-top:1px"><tr class="mslg"><td style="padding-left:23px;vertical-align:top"><div class="sld"><h3 class="r"><a class="sla" href="/url?q=http://www.fs.usda.gov/contactus/malheur/about-forest/contactus&sa=U&ei=tsCpU7y-HM28oQSa9IIQ&ved=0CCMQjBAwAQ&usg=AFQjCNGjoBzfmSfSTCOzBNxBnOhKa28FUQ">Contact Us</a></h3><div class="s st" style="width:220px;overflow:hidden">More information is available on individual Ranger District Office ...</div></div></td><td style="padding-left:7px;vertical-align:top"><div class="sld"><h3 class="r"><a class="sla" href="/url?q=http://www.fs.usda.gov/recmain/malheur/recreation&sa=U&ei=tsCpU7y-HM28oQSa9IIQ&ved=0CCUQjBAwAw&usg=AFQjCNEmTooI03G5kMNTyIVqgU8Cu822dg">Recreation</a></h3><div class="s st" style="width:220px;overflow:hidden">The 1.7 million acre Malheur National Forest located in the ...</div></div></td></tr><tr class="mslg"><td style="padding-left:23px;vertical-align:top"><div class="sld"><h3 class="r"><a class="sla" href="/url?q=http://www.fs.usda.gov/main/malheur/maps-pubs&sa=U&ei=tsCpU7y-HM28oQSa9IIQ&ved=0CCcQjBAwAg&usg=AFQjCNFuRB8FTFH1goZ5XStBRakys6JoIQ">Maps & Publications</a></h3><div class="s st" style="width:220px;overflow:hidden">Forest Service Topography Maps: These maps overlay Forest ...</div></div></td><td style="padding-left:7px;vertical-align:top"><div class="sld"><h3 class="r"><a class="sla" href="/url?q=http://www.fs.usda.gov/main/malheur/about-forest&sa=U&ei=tsCpU7y-HM28oQSa9IIQ&ved=0CCkQjBAwBA&usg=AFQjCNHSrG5pziXkX2tf50PdNo7qWMeT1A">About the Forest</a></h3><div class="s st" style="width:220px;overflow:hidden">The Malheur National Forest in the Blue Mountains of Eastern ...</div></div></td></tr><tr><td colspan="2" style="padding-left:28px;vertical-align:top"><div style="padding-top:5px"><a class="fl" href="/search?ie=UTF-8&q=+site:usda.gov+Malheur+National+Forest&sa=X&ei=tsCpU7y-HM28oQSa9IIQ&ved=0CCoQrAM">More results from usda.gov »</a></div></td></tr></table></li>';
preg_match($re, $str, $matches, PREG_OFFSET_CAPTURE, 0);
// Print the entire match result
var_dump($matches);
Please keep in mind that these code samples are automatically generated and are not guaranteed to work. If you find any syntax errors, feel free to submit a bug report. For a full regex reference for PHP, please visit: http://php.net/manual/en/ref.pcre.php