@ 2014-08-01T12:34:41Z <?php
$array1 = array('A', 'B');
$array2 = array('1', '2', '3');
$num = count($array2);
//The total number of possible combinations
$total = pow(2, $num);
//Loop through each possible combination
for ($i = 0; $i < $total; $i++)
{
//For each combination check if each bit is set
for ($j = 0; $j < $num; $j++)
{
//Is bit $j set in $i?
if (pow(2, $j) & $i) $ff = $ff.''.$array2[$j];
}
$temp[]=$ff;
}
print_r($temp);
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Output for 8.0.0 - 8.0.30 , 8.1.0 - 8.1.28 , 8.2.0 - 8.2.18 , 8.3.0 - 8.3.6 Warning: Undefined variable $ff in /in/9nrmH on line 19
Warning: Undefined variable $ff in /in/9nrmH on line 17
Array
(
[0] =>
[1] => 1
[2] => 12
[3] => 1212
[4] => 12123
[5] => 1212313
[6] => 121231323
[7] => 121231323123
)
Output for 5.0.4 - 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 , 5.6.7 - 5.6.28 , 7.0.0 - 7.0.20 , 7.1.0 - 7.1.20 , 7.2.0 - 7.2.33 , 7.3.12 - 7.3.31 , 7.4.0 - 7.4.33 Notice: Undefined variable: ff in /in/9nrmH on line 19
Notice: Undefined variable: ff in /in/9nrmH on line 17
Array
(
[0] =>
[1] => 1
[2] => 12
[3] => 1212
[4] => 12123
[5] => 1212313
[6] => 121231323
[7] => 121231323123
)
Output for 7.3.32 - 7.3.33 Array
(
[0] =>
[1] => 1
[2] => 12
[3] => 1212
[4] => 12123
[5] => 1212313
[6] => 121231323
[7] => 121231323123
)
Output for 4.3.0 - 4.3.11 , 4.4.0 - 4.4.9 , 5.0.0 - 5.0.3 Notice: Undefined variable: ff in /in/9nrmH on line 19
Notice: Undefined variable: ff in /in/9nrmH on line 17
Array
(
[0] =>
[1] => 1
[2] => 12
[3] => 1212
[4] => 12123
[5] => 1212313
[6] => 121231323
[7] => 121231323123
)
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237.32 ms | 402 KiB | 314 Q