PHP 4 NEWS
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? ? ??? 2002, Version 4.3.0
+- Added ability to use Perl-style ${n} subpattern references in the
+ replacement string for preg_replace(). Takes care of bug #18442. (Andrei)
- Fixed array_merge_recursive() to avoid problems with merging cyclical
arrays (bug #16064). (Andrei)
- Made function_exists() work properly with disabled functions. (Andrei)