Add test build things

src/globals/test-extensions.php

@@ -0,0 +1,8 @@
+<?php
+
+declare(strict_types=1);
+
+# If you want to test new extensions here, just modify it.
+$extensions = 'bcmath,bz2,calendar,ctype,curl,dom,exif,fileinfo,filter,ftp,gd,gmp,iconv,xml,mbstring,mbregex,mysqlnd,openssl,pcntl,pdo,pdo_mysql,pdo_sqlite,phar,posix,redis,session,simplexml,soap,sockets,sqlite3,tokenizer,xmlwriter,xmlreader,zlib,zip';
+
+echo $extensions;