For example user give me an array like this :
$input = ['countries', 'cities', 'towns'];
I want to create an array like this, i know what right side is :
$output["countries"]["cities"]["towns"] = "Downtown";
another example :
$input = ['cities', '0'];
$output["cities"][0] = "Nice";
I want to create a key / value array using the key given to me as a key.
I do not know the length of the array given to me.
You could hold a reference of the last array in a loop :
$input = ['countries', 'cities', 'towns'];
$output = [];
$ref = &$output;
foreach ($input as $value) {
$ref[$value] = [];
$ref = &$ref[$value];
}
$ref="Downtown";
print_r($output);
Will outputs :
Array
(
[countries] => Array
(
[cities] => Array
(
[towns] => Downtown
)
)
)
Your second example :
$input = ['cities', '0'];
$output = [];
$ref = &$output;
foreach ($input as $value) {
$ref[$value] = [];
$ref = &$ref[$value];
}
$ref="Nice";
print_r($output);
Will outputs :
Array
(
[cities] => Array
(
[0] => Nice
)
)
