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run code in 150+ php & hhvm versions
Bugs & Features
<?php $count = count( array_keys( array( 'sdf' => '1', 'sdf' => '2'), '2' )); print_r( $count );
Output for 4.3.0 - 5.6.28, hhvm-3.10.0 - 3.12.0, 7.0.0 - 7.1.0
1