Install this version:
emerge -a =dev-php/predis-1.1.1# Copyright 1999-2011 Gentoo Foundation
# Distributed under the terms of the GNU General Public License v2
# $Header: /var/cvsroot/gentoo-x86/dev-php/YAML/YAML-1.0.5.ebuild,v 1.1 2012/03/10 14:33:53 olemarkus Exp $
EAPI=5
PHP_PEAR_CHANNEL="${FILESDIR}/channel.xml"
PHP_PEAR_URI="pear.nrk.io"
PHP_PEAR_PN="Predis"
PHP_PEAR_PKG_NAME="Predis"
#inherit php-pear-lib-r1
inherit php-pear-r1
DESCRIPTION="Flexible and feature-complete PHP client library for Redis."
HOMEPAGE="https://pear.nrk.io/"
LICENSE="MIT"
SLOT="0"
KEYWORDS="amd64 x86"
IUSE=""
DEPEND=""
RDEPEND="${DEPEND}"