How to access PHP error logs?

How can I access PHP error logs in Lando?

I've found several similar issues, but none of them allow you access to true error logs. At best they give you access to logs loosely related to PHP but are useless for resolving the cause of errors.

• https://github.com/lando/lando/issues/315
• https://github.com/lando/lando/issues/2142

What I want is full access to error logs like you would be able to configure while hosting a site via localhost Apache and PHP.

Here's what I've attempted so far:

.lando.yml
(relevant pieces only)

config:
  framework: drupal7
  php: '7.1'
  via: apache
  database: mysql
  webroot: docroot
  drush: ^8
  xdebug: false
  config:
    # Custom PHP config overrides.
    php: lando/php-conf/php.ini
services:
  appserver:
    build_as_root:
      - touch /var/log/php_errors.log

Note that in the build process I am creating /var/log/php_errors.log.

lando/php-conf/php.ini

error_log = /var/log/php_errors.log

Then I followed these steps:

• lando rebuild
• lando ssh
• php -i | grep error. Here I see error_log => /var/log/php_errors.log => /var/log/php_errors.log. This looks correct.
• ls /var/log/. Here I see php_errors.log.
• tail -f /var/log/php_errors.log. I see nothing.
• I trigger a PHP error. I still see nothing in the tail process.

Am I missing something obvious? Wouldn't this be super useful for everyone? Thanks for any help.

Start with the PHP configuration shown in lando/php-conf/php.ini and the appserver build steps in .lando.yml. Reproduce the issue with lando rebuild, php -i | grep error, and tail -f /var/log/php_errors.log; done means a triggered PHP error appears in the expected log.