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run code in 150+ php & hhvm versions
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<?php $array = ( sample( 100, 'OxTest' ) + sample( 101, 'OxTest' ) ); print_r( $array ); function sample( $id, $value ) { return array( 'input_' . $id => array( 'input_value' => $value ) ); }
Output for 4.3.0 - 5.6.28, hhvm-3.10.0 - 3.12.0, 7.0.0 - 7.1.0
Array ( [input_100] => Array ( [input_value] => OxTest ) [input_101] => Array ( [input_value] => OxTest ) )