Failing tests on nightly PHP

[phy25]

See https://travis-ci.org/splitbrain/dokuwiki/jobs/517897743, for example.

php: error while loading shared libraries: libonig.so.2: cannot open shared object file: No such file or directory

[phy25]

See discussion here (it's not resolved yet as of now, because they want to decide how to install libonig2): travis-ci/php-src-builder#31

Edit: This should also work: (I conditionally install it in my branch e79389c)

addons:
  apt:
    packages:
      - libonig-dev

[splitbrain]

Adding the package to our travis setup might be a good temporary fix.

[phy25]

Looks like they fixed libonig on Apr 11: travis-ci/php-src-builder@efd74ac#diff-6fef59a74bf3bc29566e9742089f7636

Currently it is a lot noisier: https://travis-ci.org/splitbrain/dokuwiki/jobs/600157053

PHP Deprecated: Array and string offset access syntax with curly braces is deprecated in /home/travis/build/splitbrain/dokuwiki/_test/core/phpQuery-onefile.php on line 2156

#2875 is related.

[phy25]

Closing. The only failing test in nightly is about marcusschwarz/lesserphp which exists on PHP 7.4 and will be fixed in #2927.

https://travis-ci.org/splitbrain/dokuwiki/jobs/639697554