Function Compute:Add or remove built-in PHP extensions

This topic uses the protobuf built-in extension to demonstrate how to remove an extension. For a list of built-in extensions supported by the Function Compute PHP runtime environment, see PHP built-in extensions.

1. In the same directory as your function's entry file, create a directory named extension. The directory structure is as follows:

   .
   |____extension
   | |____my_ext.ini
   |____index.php

2. Edit the my_ext.ini file to comment out the protobuf extension.

   You can add other extensions or comment out unnecessary ones to optimize startup speed. For example:

   extension=session.so
   extension=ftp.so
   extension=shmop.so
   extension=bcmath.so
   extension=gettext.so
   extension=pcntl.so
   extension=simplexml.so
   extension=xmlreader.so
   extension=bz2.so
   extension=gmp.so
   extension=pdo.so
   extension=soap.so
   extension=xmlrpc.so
   extension=calendar.so
   extension=iconv.so
   extension=pdo_mysql.so
   extension=sockets.so
   extension=xmlwriter.so
   extension=ctype.so
   extension=imagick.so
   extension=phar.so
   extension=sysvmsg.so
   extension=dom.so
   extension=json.so
   extension=posix.so
   extension=sysvsem.so
   extension=exif.so
   extension=zip.so
   extension=memcached.so
   extension=mbstring.so
   ;extension=protobuf.so
   extension=sysvshm.so
   extension=fileinfo.so
   extension=mysqli.so
   extension=redis.so
   extension=tokenizer.so
   extension=zip.so
   extension=memcached.so
   zend_extension=/usr/local/lib/php/extensions/no-debug-non-zts-20170718/opcache.so
   zend_extension=/usr/local/lib/php/extensions/no-debug-non-zts-20170718/xdebug.so

3. Create a function using a code package with the preceding directory structure. For more information, see Create a function.

4. Set the environment variables for the function. By pointing PHP_INI_SCAN_DIR to your custom configuration directory, you ensure the PHP runtime environment does not load the protobuf extension. In the function's Environment Variables configuration, set the PHP_INI_SCAN_DIR variable to /code/extension.