# apt-get install build-essential libaio1 

# apt-get install libapache2-mod-php7.2 php7.2 php7.2-dev apache2

ubuntu 16.04 일 경우에는 아래의 명령어로 설치

# apt-get install libapache2-mod-php7.0 php7.0 php7.0-dev apache2

# vi /etc/bash_completion.d/oracle
export ORACLE_BASE="/usr/local/instantclient_11_2"
export ORACLE_HOME="/usr/local/instantclient_11_2"
export LD_LIBRARY_PATH="/usr/local/instantclient_11_2"

...
LD_LIBRARY_PATH=/usr/local/instantclient_11_2:$LD_LIBRARY_PATH

echo /usr/local/instantclient_11_2 > /etc/ld.so.conf.d/oracle-instantclient.conf

$ wget http://pecl.php.net/get/oci8-2.1.8.tgz

$ tar xvfz oci8-2.1.8.tgz

$ cd oci8-2.1.8/

$ phpize

# oracle server 설정
$ ls $ORACLE_HOME/lib/libclntsh.so
/u01/app/oracle/product/10.2.0/lib/libclntsh.so
or
# oracle instant client 설정
$ ls $ORACLE_HOME/libclntsh.so
/usr/local/instantclient_11_2/libclntsh.so

링크가 제대로 존재하는지 확인

$ cd $ORACLE_HOME
$ ln -s /usr/local/instantclient_11_2/libocci.so.11.1 libocci.so
$ ln -s /usr/local/instantclient_11_2/libclntsh.so.11.1 libclntsh.so

$ ./configure --with-oci8=$ORACLE_HOME (default)
$ ./configure --with-oci8=instantclient,$ORACLE_HOME
$ ./configure --with-oci8=shared,instantclient,$ORACLE_HOME

–with-oci8=instantclient,$ORACLE_HOME 으로 진행

$ make

$ make install
$ sudo make install

[sudo] password for starlits: 
/bin/bash /home/starlits/src/opensources/oci8-2.0.8/libtool --mode=install cp ./oci8.la /home/starlits/src/opensources/oci8-2.0.8/modules
libtool: install: cp ./.libs/oci8.so /home/starlits/src/opensources/oci8-2.0.8/modules/oci8.so
libtool: install: cp ./.libs/oci8.lai /home/starlits/src/opensources/oci8-2.0.8/modules/oci8.la
libtool: finish: PATH="/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/X11R6/bin:/sbin" ldconfig -n /home/starlits/src/opensources/oci8-2.0.8/modules
----------------------------------------------------------------------
Libraries have been installed in:
   /home/starlits/src/opensources/oci8-2.0.8/modules

If you ever happen to want to link against installed libraries
in a given directory, LIBDIR, you must either use libtool, and
specify the full pathname of the library, or use the `-LLIBDIR'
flag during linking and do at least one of the following:
   - add LIBDIR to the `LD_LIBRARY_PATH' environment variable
     during execution
   - add LIBDIR to the `LD_RUN_PATH' environment variable
     during linking
   - use the `-Wl,-rpath -Wl,LIBDIR' linker flag
   - have your system administrator add LIBDIR to `/etc/ld.so.conf'

See any operating system documentation about shared libraries for
more information, such as the ld(1) and ld.so(8) manual pages.
----------------------------------------------------------------------
Installing shared extensions:     /usr/lib/php5/20090626+lfs/

# vi /etc/php/7.2/apache2/php.ini
...
;extension=oci8_12c  ; Use with Oracle Database 12c Instant Client
;extension=odbc
;extension=openssl
;extension=pdo_firebird
;extension=pdo_mysql
;extension=pdo_oci
;extension=pdo_odbc
;extension=pdo_pgsql
;extension=pdo_sqlite
;extension=pgsql
;extension=shmop
extension=oci8
...

# vi /etc/php/7.2/cli/php.ini
...
extension=oci8
..

# php -m | grep oci8
oci8