Steps to be followed for installing Microsoft ODBC Driver v17, v18 For PHP For Sql Server on Ubuntu 20.04, 22.04, 24.04, 26.04

How to use these Modules

The code samples are available here

SQLSRV and PDO_SQLSRV drivers

v5.10.0 supports PHP ^7.4.0 to ~8.1.0 — Ubuntu 20.04 (heroku-20)
v5.11.1 supports PHP ~8.1.0 to ~8.2.0 — Ubuntu 22.04 (heroku-22)
v5.13.3 supports PHP ~8.3.0 to ~8.5.0 — Ubuntu 24.04 (heroku-24) and Ubuntu 26.04 (heroku-26, PHP 8.4/8.5 only — see note below)

Add Aptfile File

Aptfile file is mandatory. Create a file called Aptfile in your project root folder, then copy its content from one of these (pick the one matching your driver/Ubuntu version), or download it directly:

v5.10.0
v5.11.1
v5.13.3 / Ubuntu 24.04
v5.13.3 / Ubuntu 26.04 (msodbcsql18 only — see note below)

Add Environment Variable For Extension Repositories

It must be set,

5.13.3 for PHP Driver for SQL Server

Ubuntu 24.04

PHP 8.3

$ heroku config:set HEROKU_PHP_PLATFORM_REPOSITORIES="https://github.com/heroku-softtrends/mssql-server-drivers-for-php/raw/main/5.13.3/ubuntu/24.04/php/8.3/nts/packages.json" -a <heroku_app_name>

PHP 8.4

$ heroku config:set HEROKU_PHP_PLATFORM_REPOSITORIES="https://github.com/heroku-softtrends/mssql-server-drivers-for-php/raw/main/5.13.3/ubuntu/24.04/php/8.4/nts/packages.json" -a <heroku_app_name>

PHP 8.5

$ heroku config:set HEROKU_PHP_PLATFORM_REPOSITORIES="https://github.com/heroku-softtrends/mssql-server-drivers-for-php/raw/main/5.13.3/ubuntu/24.04/php/8.5/nts/packages.json" -a <heroku_app_name>

Ubuntu 26.04

PHP 8.4

$ heroku config:set HEROKU_PHP_PLATFORM_REPOSITORIES="https://github.com/heroku-softtrends/mssql-server-drivers-for-php/raw/main/5.13.3/ubuntu/26.04/php/8.4/nts/packages.json" -a <heroku_app_name>

PHP 8.5

$ heroku config:set HEROKU_PHP_PLATFORM_REPOSITORIES="https://github.com/heroku-softtrends/mssql-server-drivers-for-php/raw/main/5.13.3/ubuntu/26.04/php/8.5/nts/packages.json" -a <heroku_app_name>

5.11.1 for PHP Driver for SQL Server

Ubuntu 22.04

PHP 8.1

$ heroku config:set HEROKU_PHP_PLATFORM_REPOSITORIES="https://github.com/heroku-softtrends/mssql-server-drivers-for-php/raw/main/5.11.1/ubuntu/22.04/php/8.1/nts/packages.json" -a <heroku_app_name>

PHP 8.2

$ heroku config:set HEROKU_PHP_PLATFORM_REPOSITORIES="https://github.com/heroku-softtrends/mssql-server-drivers-for-php/raw/main/5.11.1/ubuntu/22.04/php/8.2/nts/packages.json" -a <heroku_app_name>

5.10.0 for PHP Driver for SQL Server

Ubuntu 20.04

PHP 8.1

$ heroku config:set HEROKU_PHP_PLATFORM_REPOSITORIES="https://github.com/heroku-softtrends/mssql-server-drivers-for-php/raw/main/5.10.0/ubuntu/20.04/php/8.1/nts/packages.json" -a <heroku_app_name>

PHP 8.0

$ heroku config:set HEROKU_PHP_PLATFORM_REPOSITORIES="https://github.com/heroku-softtrends/mssql-server-drivers-for-php/raw/main/5.10.0/ubuntu/20.04/php/8.0/nts/packages.json" -a <heroku_app_name>

PHP 7.4

$ heroku config:set HEROKU_PHP_PLATFORM_REPOSITORIES="https://github.com/heroku-softtrends/mssql-server-drivers-for-php/raw/main/5.10.0/ubuntu/20.04/php/7.4/nts/packages.json" -a <heroku_app_name>

Update your composer.json file

Add required dependencies(SQLSRV and PDO_SQLSRV drivers) to composer.json file

Drivers 5.13.3

PHP 8.3

{
  "require": {
    "php": "~8.3.0",
    "ext-sqlsrv": "^5.13",
    "ext-pdo_sqlsrv": "^5.13"
  }
}

PHP 8.4

{
  "require": {
    "php": "~8.4.0",
    "ext-sqlsrv": "^5.13",
    "ext-pdo_sqlsrv": "^5.13"
  }
}

PHP 8.5

{
  "require": {
    "php": "~8.5.0",
    "ext-sqlsrv": "^5.13",
    "ext-pdo_sqlsrv": "^5.13"
  }
}

Drivers 5.11.1

PHP 8.1

{
  "require": {
    "php": "~8.1.0",
    "ext-sqlsrv": "^5.11",
    "ext-pdo_sqlsrv": "^5.11"
  }
}

PHP 8.2

{
  "require": {
    "php": "~8.2.0",
    "ext-sqlsrv": "^5.11",
    "ext-pdo_sqlsrv": "^5.11"
  }
}

Drivers 5.10.0

PHP 8.1

{
  "require": {
    "php": "~8.1.0",
    "ext-sqlsrv": "^5.10",
    "ext-pdo_sqlsrv": "^5.10"
  }
}

PHP 8.0

{
  "require": {
    "php": "~8.0.0",
    "ext-sqlsrv": "^5.10",
    "ext-pdo_sqlsrv": "^5.10"
  }
}

PHP 7.4

{
  "require": {
    "php": "~7.4.0",
    "ext-sqlsrv": "^5.10",
    "ext-pdo_sqlsrv": "^5.10"
  }
}

After adding new dependencies to composer.json file, must be updated by running:

$ composer update --ignore-platform-reqs

Finally the composer.lock file will look like,

Drivers 5.13.3

PHP 8.3

{
  "platform": {
    "php": "~8.3.0",
    "ext-sqlsrv": "^5.13",
    "ext-pdo_sqlsrv": "^5.13"
  }
}

PHP 8.4

{
  "platform": {
    "php": "~8.4.0",
    "ext-sqlsrv": "^5.13",
    "ext-pdo_sqlsrv": "^5.13"
  }
}

PHP 8.5

{
  "platform": {
    "php": "~8.5.0",
    "ext-sqlsrv": "^5.13",
    "ext-pdo_sqlsrv": "^5.13"
  }
}

Drivers 5.11.1

PHP 8.1

{
  "platform": {
    "php": "~8.1.0",
    "ext-pdo_sqlsrv": "^5.11",
    "ext-sqlsrv": "^5.11"
  }
}

PHP 8.2

{
  "platform": {
    "php": "~8.2.0",
    "ext-sqlsrv": "^5.11",
    "ext-pdo_sqlsrv": "^5.11"
  }
}

Drivers 5.10.0

PHP 8.1

{
  "platform": {
    "php": "~8.1.0",
    "ext-pdo_sqlsrv": "^5.10",
    "ext-sqlsrv": "^5.10"
  }
}

PHP 8.0

{
  "platform": {
    "php": "~8.0.0",
    "ext-sqlsrv": "^5.10",
    "ext-pdo_sqlsrv": "^5.10"
  }
}

PHP 7.4

{
  "platform": {
    "php": "~7.4.0",
    "ext-sqlsrv": "^5.10",
    "ext-pdo_sqlsrv": "^5.10"
  }
}

Add Buildpacks

The first buildpack: https://github.com/heroku/heroku-buildpack-apt.git
The second buildpack: https://github.com/heroku/heroku-buildpack-php.git
The last buildpack: https://github.com/heroku-softtrends/heroku-php-sqlsrv-buildpack.git

Now deploy

$ git init
$ heroku git:remote -a <app_name>
$ git add --all
$ git commit -m "First commit"
$ git push heroku master

Set the stack explicitly if you're not using Heroku's current default (heroku-24):

$ heroku stack:set <heroku-20|heroku-22|heroku-24|heroku-26> -a <app_name>

Finally, check that everything is working

$ heroku open -a <heroku_app_name>

Notes on this update (scripts fixed, 24.04 + 26.04 added)

bin/compile: now fails loudly with a clear message instead of silently producing an empty MS_ODBC_VERSION if .apt/opt/microsoft is missing (e.g. buildpack order wrong, or Aptfile didn't install msodbcsql). If both msodbcsql17 and msodbcsql18 end up installed at once, it picks the higher version deterministically; set MSODBCSQL_VERSION=17 as a config var to force the other one. It also falls back from lib64/ to lib/ if a future package ever changes that layout, and copies .profile.d/configure-odbc.sh by resolving its own path instead of assuming a particular working directory.
.profile.d/configure-odbc.sh: fixed a real bug — it used to glob .apt/usr/lib/* and take whatever file happened to sort first, which is not necessarily the ODBC driver once apt has also installed unixODBC and its dependencies into that same directory. It now globs libmsodbcsql-* specifically. It also fixes ODBCINI, which previously pointed at a directory (invalid — unixODBC expects ODBCINI to be a file path) instead of odbc.ini itself; ODBCSYSINI correctly stays a directory.
24.04 / 26.04 support: the /opt/microsoft/msodbcsql<N>/lib64/... package layout these scripts rely on is the same across every Ubuntu version Microsoft ships msodbcsql for, so no stack-specific branching was needed in the scripts themselves — only the README's Aptfile/ packages.json links needed the new 5.13.3 entries above.
26.04 caveat: Microsoft's msphpsql has not announced official Ubuntu 26.04 support as of driver 5.13.3, and msodbcsql17 isn't published for 26.04 at all — only msodbcsql18 is. See the 26.04 notes in the mssql-server-drivers-for-php README for the full reasoning. Treat the heroku-26 path here as untested until you've deploy-tested it yourself.
None of this was deploy-tested against a live Heroku app in this pass — the fixes address concrete bugs found by reading the scripts (the glob bug and the ODBCINI bug above are real regardless of stack), but please verify a real git push heroku build + heroku run php -m / heroku run php -r "var_dump(new PDO(...))" before relying on this in production.