Are there any potential performance issues when including a large number of functions in PHP 5.6 and above with Bytecode Caching?

Including a large number of functions in PHP 5.6 and above with Bytecode Caching can potentially lead to increased memory usage and slower performance due to the caching of all function definitions. To mitigate this issue, consider using an opcode cache like OPcache to store precompiled bytecode in memory, reducing the need to recompile scripts on each request.

// Enable OPcache in PHP configuration
opcache.enable=1
opcache.enable_cli=1