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<?php $options = array_flip(['paper', 'rock', 'scissors']); $outcomes = ['draw', 'win', 'lose']; $cpuSelection = array_rand($options); $playerSelection = 'rock'; $difference = $options[$cpuSelection] - $options[$playerSelection]; var_export([ 'cpu' => $cpuSelection, 'human' => $playerSelection, 'outcome' => $outcomes[($difference + 3) % 3] ]);
based on HGZBn
Output for 7.2.0 - 7.2.1, 7.2.3 - 7.2.4, 7.2.8 - 7.2.9, 7.2.13, 7.2.18 - 7.2.19, 7.2.24, 7.2.26, 7.2.28, 7.2.30, 7.2.32, 7.3.8, 7.3.12, 7.3.20, 7.4.3 - 7.4.8
array ( 'cpu' => 'rock', 'human' => 'rock', 'outcome' => 'draw', )
Output for 7.2.5 - 7.2.6, 7.2.10, 7.2.12, 7.2.15, 7.2.20 - 7.2.21, 7.2.23, 7.2.29, 7.3.2, 7.3.4 - 7.3.7, 7.3.14, 7.3.19, 7.4.2
array ( 'cpu' => 'paper', 'human' => 'rock', 'outcome' => 'lose', )
Output for 7.2.2, 7.2.7, 7.2.11, 7.2.14, 7.2.16 - 7.2.17, 7.2.22, 7.2.25, 7.2.27, 7.2.31, 7.3.0 - 7.3.1, 7.3.3, 7.3.9 - 7.3.11, 7.3.13, 7.3.15 - 7.3.18, 7.4.0 - 7.4.1
array ( 'cpu' => 'scissors', 'human' => 'rock', 'outcome' => 'win', )