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?? ??? 200?, Version 4.0.6
+- Added array_filter(), which allows filtering of array elements via
+ the specified callback. (Andrei)
+- Fixed all relevant array functions to avoid moving the internal array
+ pointer during operations. (Andrei)
- IMPORTANT: removed /F modifier handling from preg_replace(). Instead
one should use new preg_replace_callback() function. (Andrei)
- Added mysql_unbuffered_query(), which is useful for very large result sets