ok is work  ?
 tmp]# yum --enablerepo=centosplus install php.i386 php-pear-Net-Socket php-pear-Auth-SASL php-pear-DB php-pear-HTTP php-pear-Mail php-pear-XML-Parser
WARNING : This php-* RPM are not official Fedora build and
overrides the official ones. Don't file bugs on Fedora Project.
Use dedicated forums 
http://forums.famillecollet.com/  Installing     : php-common                                                                                             1/2
  Installing     : php-mcrypt                                                                                             2/2
Installed:
  php-common.i386 0:5.2.10-1.el5.remi                           php-mcrypt.i386 0:5.2.10-1.el5.remi
Complete!
 server php]# mv /etc/php.ini /etc/php.ini.old
server php]# mv /etc/php.ini.org /etc/php.ini
 server php]# svc -t /service/httpd-e-smith
 server php]# httpd -t
Syntax OK
  yum update     (Error: Missing) 
Loaded plugins: fastestmirror, priorities, protect-packages, smeserver
Loading mirror speeds from cached hostfile
 * base: centos.syn.co.il
 * smeaddons: ftp.surfnet.nl
 * smeextras: ftp.surfnet.nl
 * smeos: ftp.surfnet.nl
 * smeupdates: ftp.surfnet.nl
 * updates: centos.syn.co.il
Excluding Packages from CentOS - os
Finished
Excluding Packages from CentOS - updates
Finished
Setting up Update Process
Resolving Dependencies
--> Running transaction check
--> Processing Dependency: php-common = 5.2.10-1.el5.remi for package: php-mcrypt
---> Package php-common.i386 0:5.2.10-1.el5.sme set to be updated
--> Finished Dependency Resolution
php-mcrypt-5.2.10-1.el5.remi.i386 from installed has depsolving problems
  --> Missing Dependency: php-common = 5.2.10-1.el5.remi is needed by package php-mcrypt-5.2.10-1.el5.remi.i386 (installed)
Error: Missing Dependency: php-common = 5.2.10-1.el5.remi is needed by package php-mcrypt-5.2.10-1.el5.remi.i386 (installed)
 You could try using --skip-broken to work around the problem
 You could try running: package-cleanup --problems
                        package-cleanup --dupes
                        rpm -Va --nofiles --nodigest