Install PHP 7.4 & OCI8 on Centos 7

If you are planning to use PHP to connect to an Oracle database, then the best possible option is to use OCI8, a PHP extension for Oracle.

I will show you how to install PHP 7.4 with OCI8 support on your Centos 7 (This may be applicable on other Linux distributions also).

Watch this video to understand how to enable OCI8 support for PHP:

Add EPEL & REMI Repositories

Run the commands below to add required repositories:

 yum -y install epel-release
 yum -y install https://rpms.remirepo.net/enterprise/remi-release-7.rpm 

Set Config Manager for PHP 7.4

Enable REMI for PHP 7.4 using the commands below:

 yum -y install yum-utils
 yum-config-manager --enable remi-php74 

Install PHP 7.4

Install PHP 7.4 and required on CentOS 7.

 yum install php  php-cli php-fpm php-mysqlnd php-zip php-devel php-gd php-mcrypt php-mbstring php-curl php-xml php-pear php-bcmath php-json 

Install OCI8

 yum install php-oci8 

Then edit the php.ini file as follows:

 vi /etc/php.ini 

Then add this line to the file:

 extension=oci8.so 

Save the file and quit.

Then to check if PHP 7.4 is installed correct, issue this command:

 php -v 

Here you'll see some errors. We have to install Oracle Instant Client packages to solve these errors.

Install Oracle Instant Client

To download latest Oracle Instant Client packages Click here

As of now latest version is 19.8.

You need to download for your the following 2 files for Centos 7:

oracle-instantclient19.8-basic-19.8.0.0.0-1.x86_64.rpm

oracle-instantclient19.8-devel-19.8.0.0.0-1.x86_64.rpm

Make sure they are in your present working directory, then install with the following commands:

 yum install oracle-instantclient19.8-basic-19.8.0.0.0-1.x86_64.rpm
 yum install oracle-instantclient19.8-devel-19.8.0.0.0-1.x86_64.rpm 

Now create links to Oracle Instant Client

 sh -c "echo /usr/lib/oracle/19.8/client64/lib/ > /etc/ld.so.conf.d/oracle-instantclient.conf"
ldconfig 

Then issue the following command to verify PHP is installed correctly:

 php -v 

Now the previous errors should have gone!

Restart Apache:

 systemctl restart httpd 

That's all!

August 30, 2020

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