<?php
function transformQuestionnaire($arr) {
$new_arr = array();
foreach ($arr as $array){
if (!in_array($array[0], $new_arr)){ //not a double
$new_arr[$array[0]] = $array[1];
} else { //Append it to the existing value
$new_arr[$array[0]] = $new_arr[$array[0]] . '|' . $array[1];
}
}
return $new_arr;
}
$input = array(
1 => array("one", "potato"),
2 => array("two", "fries"),
3 => array("one", "ketchup"),
);
print(var_dump(transformQuestionnaire($input)));
?>
- Output for 4.3.0 - 4.3.11, 4.4.0 - 4.4.9, 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, 5.5.0 - 5.5.38, 5.6.0 - 5.6.40, 7.0.0 - 7.0.33, 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 - 8.1.27, 8.2.0 - 8.2.17, 8.3.0 - 8.3.4
- array(2) {
["one"]=>
string(7) "ketchup"
["two"]=>
string(5) "fries"
}
preferences:
291.99 ms | 405 KiB | 456 Q