問題
函數計算 php runtime 中的 php 版本爲 7.2.7，php runtime 已經內置了較多的擴展，具體如下：
"Core", "date", "libxml", "openssl", "pcre", "zlib", "curl","filter", "hash", "readline", "Reflection",
"SPL", "session","xml", "standard", "mysqlnd", "bcmath", "bz2", "calendar","ctype", "dom", "mbstring",
"fileinfo", "ftp", "gettext", "gmp", "iconv","imagick", "json", "exif", "mysqli", "pcntl", "PDO",
"pdo_mysql","Phar", "posix", "protobuf", "redis", "shmop", "SimpleXML", "soap","sockets", "sysvmsg", "zip", "memcached",
"sysvsem", "sysvshm", "tokenizer", "xmlreader","xmlrpc", "xmlwriter", "Zend OPcache", "xdebug",但是還有用戶具有其他擴展的需求，比如用戶有對 php-gd 擴展的需求， 在本文中，以 php-gd 擴展爲例， 我們講解如果利用fcli 工具編譯其他沒有內置的擴展，php相關的擴展如下: php-ext
操作方法
tmp fcli shell
Welcome to the function compute world. Have fun!
>>> sbox -t php7.2 -d code
Entering the container. Your code is in the /code direcotry.
Unable to find image 'aliyunfc/runtime-php7.2:build' locally
build: Pulling from aliyunfc/runtime-php7.2
...
root@c83d77cb373d:/code# docker-php-ext-install gd
Configuring for:
PHP Api Version: 20170718
Zend Module Api No: 20170718
Zend Extension Api No: 320170718
checking for grep that handles long lines and -e... /bin/grep
checking for egrep... /bin/grep -E
checking for a sed that does not truncate output... /bin/sed
checking for cc... cc
checking whether the C compiler works... yes
checking for C compiler default output file name... a.out
checking for suffix of executables...
checking whether we are cross compiling... no
....
Installing shared extensions: /usr/local/lib/php/extensions/no-debug-non-zts-20170718/
Installing header files: /usr/local/include/php/
find . -name \*.gcno -o -name \*.gcda | xargs rm -f
find . -name \*.lo -o -name \*.o | xargs rm -f
find . -name \*.la -o -name \*.a | xargs rm -f
find . -name \*.so | xargs rm -f
find . -name .libs -a -type d|xargs rm -rf
rm -f libphp.la modules/* libs/*
root@c83d77cb373d:/code# ls /usr/local/lib/php/extensions/no-debug-non-zts-20170718/
bcmath.so dom.so gd.so iconv.so mysqli.so pdo_mysql.so redis.so soap.so sysvshm.so xmlrpc.so
bz2.so exif.so gettext.so imagick.so opcache.so phar.so session.so sockets.so tokenizer.so xmlwriter.so
calendar.so fileinfo.so gmp.so json.so pcntl.so posix.so shmop.so sysvmsg.so xdebug.so
ctype.so ftp.so hash.so mbstring.so pdo.so protobuf.so simplexml.so sysvsem.so xmlreader.so
root@c83d77cb373d:/code# cp /usr/local/lib/php/extensions/no-debug-non-zts-20170718/gd.so ./最後從sbox 命令中關聯的code目錄把 gd.so 提取出來， 然後參考：
php runtime 使用自定義擴展