PHP Upgrade Error (PHP 5.3.3 to PHP 5.4.19 on CentOS 6.4)

I'm using CentOS 6.4 and I was following this tutorial in order to upgrade PHP from v 5.3.3 to v 5.4.19 but I got the following error:

Error: php54w-common conflicts with php-common-5.3.3-23.el6_4.i686

. How do I resolve this problem?

[my_profile@localhost gplus-quickstart-php]$ sudo rpm -Uvh http://mirror.webtatic.com/yum/el6/latest.rpm                                                           
[sudo] password for my_profile:                                                    
Retrieving http://mirror.webtatic.com/yum/el6/latest.rpm                        
warning: /var/tmp/rpm-tmp.S0yqSL: Header V4 DSA/SHA1 Signature, key ID cf4c4ff9: NOKEY                                                                          
Preparing...                ########################################### [100%]  
   1:webtatic-release       ########################################### [100%]  
[my_profile@localhost gplus-quickstart-php]$ sudo yum install php54w
Loaded plugins: fastestmirror, refresh-packagekit, https://forum.tuteehub.com/tag/security">security      
Loading mirror speeds from cached hostfile                       
 * base: mirror.netglobalis.net                                  
 * extras: mirror.netglobalis.net                                
 * rpmforge: mirror.nexcess.net                                  
 * updates: mirror.netglobalis.net                               
 * webtatic: us-east.repo.webtatic.com                           
webtatic                                                 | 2.9 kB     00:00     
webtatic/primary_db                                      |  98 kB     00:00
Setting up Install Process
Resolving Dependencies
--> Running transaction check
---> Package php54w.i386 0:5.4.19-1.w6 will be installed
--> Processing Dependency: php54w-common = 5.4.19-1.w6 for package: php54w-5.4.19-1.w6.i386
--> Processing Dependency: php54w-cli = 5.4.19-1.w6 for package: php54w-5.4.19-1.w6.i386
--> Running transaction check
---> Package php54w-cli.i386 0:5.4.19-1.w6 will be installed
---> Package php54w-common.i386 0:5.4.19-1.w6 will be installed
--> Processing Conflict: php54w-common-5.4.19-1.w6.i386 conflicts php-common < 5.4.0
--> Finished Dependency Resolution
Error: php54w-common conflicts with php-common-5.3.3-23.el6_4.i686
 You could try using --skip-broken to work around the problem
 You could try running: rpm -Va --nofiles --nodigest
[my_profile@localhost gplus-quickstart-php]$ ^C
[my_profile@localhost gplus-quickstart-php]$ ^C
[my_profile@localhost gplus-quickstart-php]$ Error: php54w-common conflicts with php-common-5.3.3-23.el6_4.i686
bash: Error:: https://forum.tuteehub.com/tag/command">command not found
[my_profile@localhost gplus-quickstart-php]$