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Function get Document Root

<?php function getDocumentRoot() { global $DOCUMENT_ROOT, $PATH_TRANSLATED, $PATH_INFO; if ( !isset($DOCUMENT_ROOT) ) { // Check if we have $PATH_TRANSLATED and $PATH_INFO. We need them! if ( isset($PATH_TRANSLATED) && isset($PATH_INFO) ) { // In $PATH_TRANSLATED dirs are separated by escaped backslashes // (`\\') ,in $PATH_INFO in Unix style by slashes (`/'). So we // convert the former to the latter. $pt = str_replace("\\\\", "/", $PATH_TRANSLATED); // Now we cut off $PATH_INFO from $PATH_TRANSLATED's tail // and get the physical path to the topmost dir of the site. $l = strlen($pt) - strlen($PATH_INFO); $DOCUMENT_ROOT = substr($pt, 0, $l); } // is there an else? } return $DOCUMENT_ROOT; } ?>