Online PHP editor | output for 6Hk68

@ 2016-05-09T10:16:47Z

<?php

$int = 5;
$bits = [];

function int_to_bools($int, $count)
{
    $bools = [];

    for ($i = 0; $i < $count; $i++) {
        $bools[$i] = (bool)($int & (2 ** $i));
    }
    
    return $bools;
}

function bools_to_int($bools)
{
    $int = 0;
    
    foreach (array_values($bools) as $i => $bit)
    {
        $int |= ((int)$bit) << $i;
    }
    
    return $int;
}

$int = 5;

$bools = int_to_bools($int, 10);
var_dump($bools);

$int = bools_to_int($bools);
var_dump($int);

Output for 5.6.0 - 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 - 8.1.34, 8.2.0 - 8.2.30, 8.3.0 - 8.3.30, 8.4.1 - 8.4.18, 8.5.0 - 8.5.3: array(10) { [0]=> bool(true) [1]=> bool(false) [2]=> bool(true) [3]=> bool(false) [4]=> bool(false) [5]=> bool(false) [6]=> bool(false) [7]=> bool(false) [8]=> bool(false) [9]=> bool(false) } int(5)
Output for 5.5.0 - 5.5.35: Parse error: syntax error, unexpected '*' in /in/6Hk68 on line 11
Process exited with code 255.

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