bob ~ # emerge -tvp php

These are the packages that would be merged, in reverse order:

Calculating dependencies... done!
[ebuild     U ] dev-lang/php-5.2.1-r3 [5.1.6-r6] USE="apache2 berkdb cli crypt curl exif* gd-external* gdbm iconv imap ipv6 json%* ldap msql* mssql* mysql mysqli* ncurses nls odbc pcre pdo-external* readline reflection session simplexml* spell* spl sqlite ssl unicode xml xsl* zlib -adabas -apache -bcmath -birdstep -bzip2 -calendar -cdb -cgi -cjk -concurrentmodphp -ctype -curlwrappers -db2 -dbase -dbmaker -debug -discard-path -doc -empress -empress-bcs -esoob -fastbuild -fdftk -filter -firebird -flatfile -force-cgi-redirect -frontbase -ftp -gd -gmp -hash -inifile -interbase -iodbc -java-external -kerberos -ldap-sasl -libedit -mcve -mhash -oci8 -oci8-instant-client -pcntl -pdo -pic -posix -postgres -qdbm -recode -sapdb -sharedext -sharedmem -snmp -soap -sockets -solid -suhosin -sybase -sybase-ct -sysvipc -threads -tidy -tokenizer -truetype -wddx -xmlreader -xmlrpc -xmlwriter -xpm -yaz -zip -zip-external% (-filepro%) (-hyperwave-api%) (-informix%) (-memlimit%) (-ming%)" 0 kB 

Total: 1 package (1 upgrade), Size of downloads: 0 kB