[root@xxxxx ~]# yum list installed | grep php
php.x86_64            5.3.3-46.el6_6    @updates                                
php-bcmath.x86_64     5.3.3-46.el6_6    @updates                                
php-cli.x86_64        5.3.3-46.el6_6    @updates                                
php-common.x86_64     5.3.3-46.el6_6    @updates                                
php-dba.x86_64        5.3.3-46.el6_6    @updates                                
php-devel.x86_64      5.3.3-46.el6_6    @updates                                
php-embedded.x86_64   5.3.3-46.el6_6    @updates                                
php-enchant.x86_64    5.3.3-46.el6_6    @updates                                
php-fpm.x86_64        5.3.3-46.el6_6    @updates                                
php-gd.x86_64         5.3.3-46.el6_6    @updates                                
php-imap.x86_64       5.3.3-46.el6_6    @updates                                
php-intl.x86_64       5.3.3-46.el6_6    @updates                                
php-ldap.x86_64       5.3.3-46.el6_6    @updates                                
php-mbstring.x86_64   5.3.3-46.el6_6    @updates                                
php-mysql.x86_64      5.3.3-46.el6_6    @updates                                
php-odbc.x86_64       5.3.3-46.el6_6    @updates                                
php-pdo.x86_64        5.3.3-46.el6_6    @updates                                
php-pear.noarch       1:1.9.4-4.el6     @base                                   
php-pecl-apc.x86_64   3.1.9-2.el6       @base                                   
php-pecl-apc-devel.x86_64
php-pecl-memcache.x86_64
php-pgsql.x86_64      5.3.3-46.el6_6    @updates                                
php-process.x86_64    5.3.3-46.el6_6    @updates                                
php-pspell.x86_64     5.3.3-46.el6_6    @updates                                
php-recode.x86_64     5.3.3-46.el6_6    @updates                                
php-snmp.x86_64       5.3.3-46.el6_6    @updates                                
php-soap.x86_64       5.3.3-46.el6_6    @updates                                
php-tidy.x86_64       5.3.3-46.el6_6    @updates                                
php-xml.x86_64        5.3.3-46.el6_6    @updates                                
php-xmlrpc.x86_64     5.3.3-46.el6_6    @updates                                
php-zts.x86_64        5.3.3-46.el6_6    @updates                                


[root@xxxxx ~]# yum list installed | grep httpd
httpd.x86_64          2.2.15-39.el6.centos
httpd-tools.x86_64    2.2.15-39.el6.centos


[root@xxxxx ~]# locate pgsql.so
/usr/lib64/php/modules/pdo_pgsql.so
/usr/lib64/php/modules/pgsql.so
/usr/pgsql-9.4/lib/plpgsql.so


[root@xxxxx ~]# locate mbstring
/etc/php.d/mbstring.ini
/usr/include/php/ext/mbstring
/usr/include/php/ext/mbstring/libmbfl
/usr/include/php/ext/mbstring/mbstring.h
/usr/include/php/ext/mbstring/oniguruma
/usr/include/php/ext/mbstring/php_mbregex.h
/usr/include/php/ext/mbstring/php_onig_compat.h
/usr/include/php/ext/mbstring/libmbfl/config.h
/usr/include/php/ext/mbstring/libmbfl/mbfl
/usr/include/php/ext/mbstring/libmbfl/mbfl/eaw_table.h
/usr/include/php/ext/mbstring/libmbfl/mbfl/mbfilter.h
/usr/include/php/ext/mbstring/libmbfl/mbfl/mbfilter_8bit.h
/usr/include/php/ext/mbstring/libmbfl/mbfl/mbfilter_pass.h
/usr/include/php/ext/mbstring/libmbfl/mbfl/mbfilter_wchar.h
/usr/include/php/ext/mbstring/libmbfl/mbfl/mbfl_allocators.h
/usr/include/php/ext/mbstring/libmbfl/mbfl/mbfl_consts.h
/usr/include/php/ext/mbstring/libmbfl/mbfl/mbfl_convert.h
/usr/include/php/ext/mbstring/libmbfl/mbfl/mbfl_defs.h
/usr/include/php/ext/mbstring/libmbfl/mbfl/mbfl_encoding.h
/usr/include/php/ext/mbstring/libmbfl/mbfl/mbfl_filter_output.h
/usr/include/php/ext/mbstring/libmbfl/mbfl/mbfl_ident.h
/usr/include/php/ext/mbstring/libmbfl/mbfl/mbfl_language.h
/usr/include/php/ext/mbstring/libmbfl/mbfl/mbfl_memory_device.h
/usr/include/php/ext/mbstring/libmbfl/mbfl/mbfl_string.h
/usr/include/php/ext/mbstring/oniguruma/oniguruma.h
/usr/lib64/php/modules/mbstring.so