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'/./' or '/foo/../' with '/' */ $re = array('#(/\.?/)#', '#/(?!\.\.)[^/]+/\.\./#'); for($n=1; $n>0; $abs=preg_replace($re, '/', $abs, -1, $n)) { } // Wondermark (alt tag already present) elseif (strpos($article['content'], 'wondermark.com/c') !== FALSE) { // visual indicator 9db3fb2a68 Add cascading input and.