July, 2002PHP 4.2.2Sept, 2002PHP 4.2.3Dec, 2003PHP 4.3.0Feb, 2003PHP 4.3.1May, 2003PHP 4.3.2July, 2003PHP 4.3.3July, 2003PHP 5.0 Beta 1???PHP 4.4Before Perl 6PHP 5.0