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<?php var_dump(count(FALSE));
Output for 7.2.0
Warning: count(): Parameter must be an array or an object that implements Countable in /in/v90Nu on line 3 int(1)
Output for 4.3.0 - 5.6.30, hhvm-3.10.1 - 3.22.0, 7.0.0 - 7.1.11
int(1)