PHP Microsoft SQLSRV via Yum repos.

Simple way if the setup is using the Microsoft repos. First, the install the system ODBC stuff:

sudo su
curl https://packages.microsoft.com/config/rhel/7/prod.repo > /etc/yum.repos.d/mssql-tools.repo
sudo ACCEPT_EULA=Y yum install msodbcsql17 mssql-tools
exit

Then install the Unix ODBC development stuff:

sudo yum install unixODBC-devel

Now install the PHP SQLSRV module items via Yum:

sudo ACCEPT_EULA=Y yum install php-sqlsrv

PHP Microsoft SQLSRV via Yum repos and PECL.

First, the install the system ODBC stuff:

sudo su
curl https://packages.microsoft.com/config/rhel/7/prod.repo > /etc/yum.repos.d/mssql-tools.repo
sudo ACCEPT_EULA=Y yum install msodbcsql17 mssql-tools
exit

For some reason it’s recomended that the UTF16 stuff get removed:

sudo yum remove unixODBC-utf16 unixODBC-utf16-devel

Add the MSSQL tool stuff to the user environment paths:

echo 'export PATH="$PATH:/opt/mssql-tools/bin"' >> ~/.bash_profile
echo 'export PATH="$PATH:/opt/mssql-tools/bin"' >> ~/.bashrc

Re-source the .bashrc:

source ~/.bashrc

Then install the Unix ODBC development stuff:

sudo yum install unixODBC-devel

Now install the PHP SQLSRV module items via PECL:

sudo pecl install sqlsrv pdo_sqlsrv