mysql upgrade

Hi, I have built successfully and am running PHP 4.3.0 with ./configure' '--prefix=/usr' '--exec-prefix=/usr' '--bindir=/usr/bin' '--sbindir=/usr/sbin' '--sysconfdir=/etc' '--datadir=/usr/share' '--includedir=/usr/include' '--libdir=/usr/lib' '--libexecdir=/usr/libexec' '--localstatedir=/var' '--sharedstatedir=/usr/com' '--mandir=/usr/share/man' '--infodir=/usr/share/info' '--prefix=/usr' '--with-config-file-path=/etc' '--disable-debug' '--with-pic' '--disable-rpath' '--enable-inline-optimization' '--with-bz2' '--with-exec-dir=/usr/bin' '--with-freetype-dir=/usr' '--with-gd' '--with-gdbm' '--with-gettext' '--with-jpeg-dir=/usr' '--with-mm' '--with-openssl' '--with-png' '--with-regex=system' '--with-ttf' '--with-xml' '--with-expat-dir=/usr' '--with-zlib' '--with-layout=GNU' '--enable-bcmath' '--enable-debugger' '--enable-ftp' '--enable-magic-quotes' '--enable-safe-mode' '--enable-sockets' '--enable-sysvsem' '--enable-sysvshm' '--enable-track-vars' '--enable-yp' '--enable-wddx' '--with-ldap=shared' '--with-mysql=shared' '--with-apxs=/usr/sbin/apxs' im running mysql version 3.33.41-1 and plan to upgrade to ver 3.23.55-1. If i simply install the rpms, would the PHP installation break ? TIA gamin.