PHP 5.4 Hits RC1

“I’ve been tracking PHP 5.4 development for awhile and from
early on it’s held my interest for at least one critical reason:
performance. In November of 2010, Andi Gutmans, CEO of Zend said
that PHP 5.4 could lower PHP’s memory footprint by as much as 35
percent.That’s a really big deal that will have immediate impact on
the millions of PHP users out there.