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@ 2014-07-01T19:35:47Z

<?php

    // Holds the diffs
    $diffContainer = array();

    // Some numbers?
    $numbers = array(16,8,4,2);

    foreach($numbers as $currentNumberLevel => &$number) {
        // There is no difference between zero and the number before
        if($currentNumberLevel === 0) {
            continue;
        }

        // Calculate the diffs
        // > Addition
        $diffContainer['addition'][$currentNumberLevel] = $numbers[($currentNumberLevel - 1)] + $number;
        // > Subtraction
        $diffContainer['subtraction'][$currentNumberLevel] = $numbers[($currentNumberLevel - 1)] - $number;
        // > Multiplication
        $diffContainer['multiplication'][$currentNumberLevel] = $numbers[($currentNumberLevel - 1)] * $number;
        // > Division
        $diffContainer['division'][$currentNumberLevel] = $numbers[($currentNumberLevel - 1)] / $number;
    }

Output for 5.0.0 - 5.0.5, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17, 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.24 - 5.5.35, 5.6.8 - 5.6.28, 7.0.0 - 7.0.20, 7.1.0 - 7.1.25, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.7
Output for 4.4.2 - 4.4.9: Parse error: syntax error, unexpected '&', expecting T_VARIABLE or '$' in /in/oYDf8 on line 9
Process exited with code 255.
Output for 4.3.0 - 4.3.1, 4.3.5 - 4.3.11, 4.4.0 - 4.4.1: Parse error: parse error, unexpected '&', expecting T_VARIABLE or '$' in /in/oYDf8 on line 9
Process exited with code 255.
Output for 4.3.2 - 4.3.4: Parse error: parse error, expecting `T_VARIABLE' or `'$'' in /in/oYDf8 on line 9
Process exited with code 255.

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