CentOS 7のPHPでOCI関数を使うまで

CentOS7 PHP

【環境】
CentOS 7.2.1511

PHPのoci関数を利用するまでの手順。（PHP本体はインストール済みの状態）

最初に「Oracle Instant Client」を導入する。

Oracle社のWebサイトから、RPMファイルを入手する。アカウント登録が必要。

色々とパッケージがあるが、以下の2つで良い。
　・Basic
　・SDK

RPMコマンドでインストール。

# rpm -ivh oracle-instantclient12.1-basic-12.1.0.2.0-1.x86_64.rpm
# rpm -ivh oracle-instantclient12.1-devel-12.1.0.2.0-1.x86_64.rpm

必要なライブラリがインストールされる。

# rpm -ql oracle-instantclient12.1-basic
/usr/lib/oracle/12.1/client64/bin/adrci
/usr/lib/oracle/12.1/client64/bin/genezi
/usr/lib/oracle/12.1/client64/lib/libclntsh.so.12.1
/usr/lib/oracle/12.1/client64/lib/libclntshcore.so.12.1
/usr/lib/oracle/12.1/client64/lib/libipc1.so
/usr/lib/oracle/12.1/client64/lib/libmql1.so
/usr/lib/oracle/12.1/client64/lib/libnnz12.so
/usr/lib/oracle/12.1/client64/lib/libocci.so.12.1
/usr/lib/oracle/12.1/client64/lib/libociei.so
/usr/lib/oracle/12.1/client64/lib/libocijdbc12.so
/usr/lib/oracle/12.1/client64/lib/libons.so
/usr/lib/oracle/12.1/client64/lib/liboramysql12.so
/usr/lib/oracle/12.1/client64/lib/ojdbc6.jar
/usr/lib/oracle/12.1/client64/lib/ojdbc7.jar
/usr/lib/oracle/12.1/client64/lib/xstreams.jar

# rpm -ql oracle-instantclient12.1-devel
/usr/include/oracle/12.1/client64/ldap.h
/usr/include/oracle/12.1/client64/nzerror.h
/usr/include/oracle/12.1/client64/nzt.h
/usr/include/oracle/12.1/client64/occi.h
/usr/include/oracle/12.1/client64/occiAQ.h
/usr/include/oracle/12.1/client64/occiCommon.h
/usr/include/oracle/12.1/client64/occiControl.h
/usr/include/oracle/12.1/client64/occiData.h
/usr/include/oracle/12.1/client64/occiObjects.h
/usr/include/oracle/12.1/client64/oci.h
/usr/include/oracle/12.1/client64/oci1.h
/usr/include/oracle/12.1/client64/oci8dp.h
/usr/include/oracle/12.1/client64/ociap.h
/usr/include/oracle/12.1/client64/ociapr.h
/usr/include/oracle/12.1/client64/ocidef.h
/usr/include/oracle/12.1/client64/ocidem.h
/usr/include/oracle/12.1/client64/ocidfn.h
/usr/include/oracle/12.1/client64/ociextp.h
/usr/include/oracle/12.1/client64/ocikpr.h
/usr/include/oracle/12.1/client64/ocixmldb.h
/usr/include/oracle/12.1/client64/ocixstream.h
/usr/include/oracle/12.1/client64/odci.h
/usr/include/oracle/12.1/client64/oratypes.h
/usr/include/oracle/12.1/client64/ori.h
/usr/include/oracle/12.1/client64/orid.h
/usr/include/oracle/12.1/client64/orl.h
/usr/include/oracle/12.1/client64/oro.h
/usr/include/oracle/12.1/client64/ort.h
/usr/include/oracle/12.1/client64/xa.h
/usr/lib/oracle/12.1/client64/lib/libclntsh.so
/usr/lib/oracle/12.1/client64/lib/libclntshcore.so
/usr/lib/oracle/12.1/client64/lib/libocci.so
/usr/lib/oracle/12.1/client64/lib/ottclasses.zip
/usr/share/oracle/12.1/client64/admin/oraaccess.xsd
/usr/share/oracle/12.1/client64/demo/cdemo81.c
/usr/share/oracle/12.1/client64/demo/demo.mk
/usr/share/oracle/12.1/client64/demo/occidemo.sql
/usr/share/oracle/12.1/client64/demo/occidemod.sql
/usr/share/oracle/12.1/client64/demo/occidml.cpp
/usr/share/oracle/12.1/client64/demo/occiobj.cpp
/usr/share/oracle/12.1/client64/demo/occiobj.typ
/usr/share/oracle/12.1/client64/demo/oraaccess.xml
/usr/share/oracle/12.1/client64/demo/ott
/usr/share/oracle/12.1/client64/demo/setuporamysql.sh


次に、oci8モジュールを導入する。

PECLからoci8関数を導入。

# pecl install oci8

とするとエラーになる。

PHP 7未満の場合は、「oci8-2.0.11」を指定するようにとの事。
https://pecl.php.net/package/oci8

# pecl install oci8-2.0.11

/usr/lib64/php/modules/oci8.so　が生成される。


モジュールを読み込むため、/etc/php.d/oci8.ini を作成する。

; Enable oci8 extension module
extension=oci8.so

httpdを再起動

# systemctl restart httpd

モジュールが読み込まれているか確認。

$ php -m | grep oci
oci8

phpinfo で確認する場合の例。

$ php -i | egrep -i 'oracle|oci'
/etc/php.d/oci8.ini,
oci8
OCI8 Support => enabled
OCI8 DTrace Support => disabled
OCI8 Version => 2.0.11
Oracle Run-time Client Library Version => 12.1.0.2.0
Oracle Compile-time Instant Client Version => 12.1
oci8.connection_class => no value => no value
oci8.default_prefetch => 100 => 100
oci8.events => Off => Off
oci8.max_persistent => -1 => -1
oci8.old_oci_close_semantics => Off => Off
oci8.persistent_timeout => -1 => -1
oci8.ping_interval => 60 => 60
oci8.privileged_connect => Off => Off
oci8.statement_cache_size => 20 => 20


「oci_connect」関数が存在するかチェック。

$ php --rf oci_connect
Function [ <internal:oci8> function oci_connect ] {

  - Parameters [5] {
    Parameter #0 [ <required> $username ]
    Parameter #1 [ <required> $password ]
    Parameter #2 [ <optional> $connection_string ]
    Parameter #3 [ <optional> $character_set ]
    Parameter #4 [ <optional> $session_mode ]
  }
}

存在しない場合。

$ php --rf oci_connect
Exception: Function oci_connect() does not exist