I tried to recompile the php rpm (with oracle support, don't know if it
matters), after I installed all depencies but it gave an error. Here's config.log:

configure:3705: checking how to run the C++ preprocessor
configure:3736: g++ -E  conftest.cc
./configure: line 3737: g++: command not found
configure:3742: $? = 127
configure: failed program was:
| /* confdefs.h.  */
|
| #define PACKAGE_NAME ""
| #define PACKAGE_TARNAME ""
| #define PACKAGE_VERSION ""
| #define PACKAGE_STRING ""
| #define PACKAGE_BUGREPORT ""
| #ifdef __cplusplus
| void exit (int);
| #endif
| /* end confdefs.h.  */
| #ifdef __STDC__
| # include <limits.h>
| #else
| # include <assert.h>
| #endif
|                    Syntax error
configure:3736: g++ -E  conftest.cc
./configure: line 3737: g++: command not found
configure:3742: $? = 127
configure: failed program was:
| /* confdefs.h.  */
|
| #define PACKAGE_NAME ""
| #define PACKAGE_TARNAME ""
| #define PACKAGE_VERSION ""
| #define PACKAGE_STRING ""
| #define PACKAGE_BUGREPORT ""
| #ifdef __cplusplus
| void exit (int);
| #endif
| /* end confdefs.h.  */
| #ifdef __STDC__
| # include <limits.h>
| #else
| # include <assert.h>
| #endif
|                    Syntax error
configure:3736: /lib/cpp  conftest.cc
cpp: installation problem, cannot exec 'cc1plus': No such file or directory

After installing gcc-c++ got another error:
checking for init_snmp in -lnetsnmp... no
configure: error: SNMP sanity check failed. Please check config.log for more
information.
config.log had:
/usr/bin/ld: cannot find -lrpm

It's required by snmp:
net-snmp-config --libs
-L/usr/lib -lnetsnmp -lcrypto -lrpm -lrpmio -lpopt -lbz2 -lz -lelf -lm
-L/usr/lib/lib -lwrap
(Is rpm-devel really necessary for snmp?)

Then I got missing -lelf on snmp again.
I installed elfutils-devel.

I think both rpm-devel and elfutils-devel should be required by snmp-devel, not
 by php rebuild.
 
Then php started to compile.