Debug interactively PHP BLT #7

Transcript

1. Debug interactively @sota1235

2. var_dump($sota1235); • @sota1235 • Call me ‘kirin’ • PHP &

   JavaScript • Mercari, Inc.

3. http://sota1235.hatenablog.com/entry/2017/01/01/175228

4. I did it

5. Today’s theme

6. Debug

7. Debugging method • Using var_dump, echo • php -a •

   Writing tests • IDE • etc…

8. Debugging method • Using var_dump, echo • php -a •

   Writing tests • IDE • etc…

9. Using REPL (php -a) • Easy to use • Can

   load files • Good integration with CLI

10. Is it the best way? • Bother to require autoloader

    • Reset state every time • Not good for many autoloader files…
11. None

12. psysh http://psysh.org/

13. psysh • Rich CLI • Customizable • We can make

    own REPL

14. Rich REPL • Auto complete (with Tab key) • Useful

    commands • history, documentation, show properties • Rich UI

15. Customizable • We can place config file • ~/.config/psysh/psysh.php •

    We can do anything if PHP can

16. <?php // Automatically autoload Composer dependencies if (is_file(getcwd() . '/vendor/autoload.php'))

    { require_once(getcwd() . '/vendor/autoload.php'); } Load composer automatically

17. <?php // Use local config, if available if (is_file(getcwd() .

    '/.psysh.php')) { return require(getcwd() . '/.psysh.php'); } // Fall back to global config return [ 'startupMessage' => '<info>Using global config</info>', 'commands' => [ new \Psy\Command\ParseCommand, ], ]; Load local config

18. <?php $default_includes = []; // Automatically autoload Composer dependencies if

    (is_file(getcwd() . '/vendor/autoload.php')) { $default_includes[] = getcwd() . '/vendor/autoload.php'); } if (array_pop(explode('/', getcwd())) === '') { $default_includes[] = getcwd() . 'lecacy_autoloader.php'; } return [ 'defaultIncludes' = $default_includes, ]; Legacy project? No problem☺

19. Thank you