Hi internals, > I've created a new RFC > https://wiki.php.net/rfc/readline_interactive_shell_result_function > adding a way to configure a callback to be called to dump the value of > single-expression statements from `php -a` > (and an ini setting that can be disabled to prevent that callback from being > called). > > Many REPLs (Read-Eval-Print Loops) for other programming languages that I'm > familiar with > print a (possibly truncated) representation of the result of expressions, but > PHP doesn't. > It would be useful to allow users to extend the functionality of the default > interactive php shell (php -a), > possibly with auto_prepend_file or through use of command wrappers/aliases, > or after loading the shell. > Prior to this RFC, there was no way to extend the interactive php shell in > this way. > (I've seen https://github.com/bobthecow/psysh mentioned as an alternative for > php -a while investigating this, > but that's a shell written from scratch, and doesn't have some functionality > from php -a such as tolerance of fatal errors) > > Because PHP's interactive shell is written in C, adding new features or bug > fixes is inconvenient - it would require a lot > of time getting familiar with C programming, PHP's internals and memory > management, > and with PHP's internal C ast representation. > It would be easier and more accessible to extend PHP's interactive shell > through code written in PHP rather than code written in C. > > This was among the proposed enhancements I brought up in > https://externals.io/message/111073 . > An earlier version of the implementation was also created months ago - > https://github.com/php/php-src/pull/5962
Some of the feedback had mentioned that adding the ability to dump the results of expressions in the default shell only made sense if there was a default implementation included with this RFC. I plan to start a straw poll shortly, to measure interest with/without a proposed result expression dumper loaded by default. https://wiki.php.net/rfc/readline_interactive_shell_result_function_straw_poll Thanks, - Tyson -- PHP Internals - PHP Runtime Development Mailing List To unsubscribe, visit: https://www.php.net/unsub.php
