- if ($needle == ".") $needle = "\.";
- ereg("([^$needle]+)$needle?$", $haystack, $regs);
- return $regs[1];
+ if ($needle == '') return $haystack;
+ $parts = explode($needle, $haystack);
+ $elem = array_pop($parts);
+ while ($elem == '' && count($parts))
+ {
+ $elem = array_pop($parts);
+ }
+ return $elem;
+ }
+
+ //*************************************************************************
+ // Read from the back of $haystack until $needle is found, or the begining
+ // of the $haystack is reached. $needle is a single character
+ //*************************************************************************
+ function readMailboxParent($haystack, $needle) {
+ if ($needle == '') return '';
+ $parts = explode($needle, $haystack);
+ $elem = array_pop($parts);
+ while ($elem == '' && count($parts))
+ {
+ $elem = array_pop($parts);
+ }
+ return join($needle, $parts);