# yum install php-pecl-apc.x86_64
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Finished
Setting up Install Process
Resolving Dependencies
--> Running transaction check
---> Package php-pecl-apc.x86_64 0:3.1.9-2.el5.rf set to be updated
--> Processing Dependency: php-zend-abi = 20050922 for package: php-pecl-apc
--> Processing Dependency: /usr/bin/pecl for package: php-pecl-apc
--> Running transaction check
---> Package php-pear.noarch 1:1.7.2-2.el5.art set to be updated
---> Package php-pecl-apc.x86_64 0:3.1.9-2.el5.rf set to be updated
--> Processing Dependency: php-zend-abi = 20050922 for package: php-pecl-apc
--> Finished Dependency Resolution
php-pecl-apc-3.1.9-2.el5.rf.x86_64 from rpmforge has depsolving problems
--> Missing Dependency: php-zend-abi = 20050922 is needed by package php-pecl-apc-3.1.9-2.el5.rf.x86_64 (rpmforge)
Error: Missing Dependency: php-zend-abi = 20050922 is needed by package php-pecl-apc-3.1.9-2.el5.rf.x86_64 (rpmforge)
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
The program package-cleanup is found in the yum-utils package.