Unable to specify/add php modules for the "cli"

Hi, i am working to port a php application in my Cloudfoundry, using :

buildpack: https://github.com/cloudfoundry/php-buildpack/releases/download/v4.6.26/php-buildpack-cflinuxfs4-v4.6.26.zip stack: cflinuxfs4

the compose.json requires "fileinfo" and "gd" and even if the modules are specified as per documentation:

.bp-config/php/php.ini.d/custom.ini

extension=mysqli.so extension=redis.so extension=curl.so extension=gd.so extension=xsl.so extension=mbstring.so extension=soap.so extension=openssl.so extension=fileinfo.so extension=imagick.so zend_extension=opcache.so

if i check the extension via browser (so using the stack apache -> phpfpm) i can see the extensions, but those are not loaded in the CLI so the composer install always fails.

any chances i can specifiy php extension in the CLI during build?

Start with the documented path .bp-config/php/php.ini.d/custom.ini and compare how the buildpack configures PHP-FPM versus the CLI used by composer install. Reproduce the missing fileinfo and gd modules in the CLI, then verify that the requested extensions load during the build without breaking the browser-served PHP runtime.