<?php
$set1 = ['A', 'B'];
$set2 = [1, 2];
function perms( $set1, $set2) {
$perms = array();
$i = count( $set1);
while( $i >= 0) {
$perms[] = p( $set1, $set2);
$j = count( $set2);
while( $j >= 0) {
$perms[] = p( $set1, $set2);
$set2[] = array_shift( $set2);
$j--;
}
$set1[] = array_shift( $set1);
$i--;
}
return $perms;
}
function p( $set1, $set2) {
$p = array();
for( $i = 0; $i < count( $set1); $i++) {
$el1 = $set1[ $i ];
$el2 = $set2[ $i ];
$p[] = $el1.$el2;
}
sort( $p);
return implode( ', ', $p);
}
print_r( perms( $set1, $set2));
- Output for 5.4.0 - 5.4.45, 5.5.0 - 5.5.35, 5.6.0 - 5.6.28, 7.0.0 - 7.0.20, 7.1.0 - 7.1.10, 7.2.0 - 7.2.33, 7.3.12 - 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
- Array
(
[0] => A1, B2
[1] => A1, B2
[2] => A2, B1
[3] => A1, B2
[4] => A1, B2
[5] => A1, B2
[6] => A2, B1
[7] => A1, B2
[8] => A1, B2
[9] => A1, B2
[10] => A2, B1
[11] => A1, B2
)
- Output for 5.2.3 - 5.2.17, 5.3.0 - 5.3.29
- Parse error: syntax error, unexpected '[' in /in/v2QDe on line 2
Process exited with code 255. - Output for 4.4.2 - 4.4.9, 5.1.0 - 5.1.6, 5.2.0 - 5.2.2
- <br />
<b>Parse error</b>: syntax error, unexpected '[' in <b>/in/v2QDe</b> on line <b>2</b><br />
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, 5.0.0 - 5.0.5
- <br />
<b>Parse error</b>: parse error, unexpected '[' in <b>/in/v2QDe</b> on line <b>2</b><br />
Process exited with code 255. - Output for 4.3.2 - 4.3.4
- <br />
<b>Parse error</b>: parse error in <b>/in/v2QDe</b> on line <b>2</b><br />
Process exited with code 255.
preferences:
219.6 ms | 401 KiB | 345 Q