[PhpunitBridge] Restore php 5.5 compat #31999
Merged
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The
ARRAY_FILTER_USE_KEY
constant was introduced in php 5.6, let usavoid it for now.
See https://www.php.net/manual/en/function.array-filter.php#refsect1-function.array-filter-changelog
Thanks @alcaeus for spotting this in https://travis-ci.org/doctrine/DoctrineBundle/jobs/543340482#L596