<?php
$dataArray = [
[1, 1, 0],
[1, 0, 1],
[1, 1, 0],
[1, 0, 0],
[1, 0, 0]
];
$onePositions = array_map(function($row) {
return array_map(function($position) { return $position + 1; }, array_keys($row, 1));
}, $dataArray);
var_dump($onePositions);
- Output for 5.6.38, 7.1.0 - 7.1.33, 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 - 8.3.4, 8.3.6
- array(5) {
[0]=>
array(2) {
[0]=>
int(1)
[1]=>
int(2)
}
[1]=>
array(2) {
[0]=>
int(1)
[1]=>
int(3)
}
[2]=>
array(2) {
[0]=>
int(1)
[1]=>
int(2)
}
[3]=>
array(1) {
[0]=>
int(1)
}
[4]=>
array(1) {
[0]=>
int(1)
}
}
- Output for 8.3.5
- Warning: PHP Startup: Unable to load dynamic library 'sodium.so' (tried: /usr/lib/php/8.3.5/modules/sodium.so (libsodium.so.23: cannot open shared object file: No such file or directory), /usr/lib/php/8.3.5/modules/sodium.so.so (/usr/lib/php/8.3.5/modules/sodium.so.so: cannot open shared object file: No such file or directory)) in Unknown on line 0
array(5) {
[0]=>
array(2) {
[0]=>
int(1)
[1]=>
int(2)
}
[1]=>
array(2) {
[0]=>
int(1)
[1]=>
int(3)
}
[2]=>
array(2) {
[0]=>
int(1)
[1]=>
int(2)
}
[3]=>
array(1) {
[0]=>
int(1)
}
[4]=>
array(1) {
[0]=>
int(1)
}
}
preferences:
178.65 ms | 402 KiB | 203 Q