It is important to keep software up to date on your computer and web servers. I manage a few webservers which run Apache/PHP/MySQL on CentOS, a Red Hat Enterprise Linux derivitive, and use YUM to install software and keep it up to date. This post looks how you would just do an update to PHP using YUM on CentOS.
You need to run the following command as either the root user, or by using the "sudo" command. Updating PHP is as simple as issuing the command below. This will also update all the dependent packages, i.e. the extensions you have installed, should they need to be.
yum update php
This then scans for updates and the following example output shows what happened on one of my development machines after running the above command:
Loading "installonlyn" plugin Setting up Update Process Setting up repositories Reading repository metadata in from local files Resolving Dependencies --> Populating transaction set with selected packages. Please wait. ---> Package php.i386 0:5.1.6-20.el5_2.1 set to be updated --> Running transaction check --> Processing Dependency: php-cli = 5.1.6-20.el5_2.1 for package: php --> Processing Dependency: php-common = 5.1.6-20.el5_2.1 for package: php --> Restarting Dependency Resolution with new changes. --> Populating transaction set with selected packages. Please wait. ---> Package php-cli.i386 0:5.1.6-20.el5_2.1 set to be updated ---> Package php-common.i386 0:5.1.6-20.el5_2.1 set to be updated --> Running transaction check --> Processing Dependency: php-common = 5.1.6-15.el5 for package: php-gd --> Processing Dependency: php-common = 5.1.6-15.el5 for package: php-pdo --> Processing Dependency: php-common = 5.1.6-15.el5 for package: php-mysql --> Processing Dependency: php-common = 5.1.6-15.el5 for package: php-xml --> Processing Dependency: php-common = 5.1.6-15.el5 for package: php-soap --> Restarting Dependency Resolution with new changes. --> Populating transaction set with selected packages. Please wait. ---> Package php-soap.i386 0:5.1.6-20.el5_2.1 set to be updated ---> Package php-pdo.i386 0:5.1.6-20.el5_2.1 set to be updated ---> Package php-xml.i386 0:5.1.6-20.el5_2.1 set to be updated ---> Package php-gd.i386 0:5.1.6-20.el5_2.1 set to be updated ---> Package php-mysql.i386 0:5.1.6-20.el5_2.1 set to be updated --> Running transaction check Dependencies Resolved ============================================================================= Package Arch Version Repository Size ============================================================================= Updating: php i386 5.1.6-20.el5_2.1 updates 1.1 M Updating for dependencies: php-cli i386 5.1.6-20.el5_2.1 updates 2.1 M php-common i386 5.1.6-20.el5_2.1 updates 154 k php-gd i386 5.1.6-20.el5_2.1 updates 113 k php-mysql i386 5.1.6-20.el5_2.1 updates 84 k php-pdo i386 5.1.6-20.el5_2.1 updates 62 k php-soap i386 5.1.6-20.el5_2.1 updates 136 k php-xml i386 5.1.6-20.el5_2.1 updates 94 k Transaction Summary ============================================================================= Install 0 Package(s) Update 8 Package(s) Remove 0 Package(s) Total download size: 3.9 M Is this ok [y/N]:
As you can see it has worked out all the dependencies that need to be updated as well, which include the GD and MySQL PHP packages. After typing in "y" and then <enter> the update starts:
Downloading Packages: (1/8): php-soap-5.1.6-20. 100% |=========================| 136 kB 00:01 (2/8): php-pdo-5.1.6-20.e 100% |=========================| 62 kB 00:00 (3/8): php-common-5.1.6-2 100% |=========================| 154 kB 00:04 (4/8): php-xml-5.1.6-20.e 100% |=========================| 94 kB 00:01 (5/8): php-gd-5.1.6-20.el 100% |=========================| 113 kB 00:00 (6/8): php-mysql-5.1.6-20 100% |=========================| 84 kB 00:00 (7/8): php-cli-5.1.6-20.e 100% |=========================| 2.1 MB 00:54 (8/8): php-5.1.6-20.el5_2 100% |=========================| 1.1 MB 00:30 Running Transaction Test Finished Transaction Test Transaction Test Succeeded Running Transaction Updating : php-common ####################### [ 1/16] Updating : php-pdo ####################### [ 2/16] Updating : php-cli ####################### [ 3/16] Updating : php-soap ####################### [ 4/16] Updating : php-xml ####################### [ 5/16] Updating : php-gd ####################### [ 6/16] Updating : php-mysql ####################### [ 7/16] Updating : php ####################### [ 8/16] Cleanup : php-soap ####################### [ 9/16] Cleanup : php-pdo ####################### [10/16] Cleanup : php-common ####################### [11/16] Cleanup : php-xml ####################### [12/16] Cleanup : php-gd ####################### [13/16] Cleanup : php-mysql ####################### [14/16] Cleanup : php-cli ####################### [15/16] Cleanup : php ####################### [16/16] Updated: php.i386 0:5.1.6-20.el5_2.1 Dependency Updated: php-cli.i386 0:5.1.6-20.el5_2.1 php-common.i386 0:5.1.6-20.el5_2.1 php-gd.i386 0:5.1.6-20.el5_2.1 php-mysql.i386 0:5.1.6-20.el5_2.1 php-pdo.i386 0:5.1.6-20.el5_2.1 php-soap.i386 0:5.1.6-20.el5_2.1 php-xml.i386 0:5.1.6-20.el5_2.1 Complete!
And that’s it. Easy stuff. All done!
