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Back'#/(?!\.\.)[^/]+/\.\./#'); for($n=1; $n>0; $abs=preg_replace($re, '/', $abs, -1, $n)) {} /* absolute URL */ $abs = preg_replace($re, '/', $abs, -1, $n)) {} /* absolute URL is ready! */ } function rel2abs($rel, $base) { if ($img->getAttribute('title')) { // replace the