I have the following array:
$foo = ["hello", "hi", [5, 10]];
I want to convert this to an associative array like so:
$foo = [
"0" => "hello",
"1" => "hi",
"2" => [5, 10],
];
How can I do this?
The reason I want to do this is because when I execute the shuffle method, I want to know what the original index was.
For example shuffle($foo) might return:
$foo = [
"1" => "hi",
"2" => [5, 10],
"0" => "hello",
];
This is your array:
$foo = ["hello", "hi", [5, 10]];
It's already associative. PHP adds keys for you, so it's the same as doing:
$foo = [0 => "hello", 1 => "hi", 2 => [5, 10]];
If you use string keys that are numbers, PHP converts them to numbers for you.
Your array doesn't need to be "associative" to make shuffle behave as you want. All PHP arrays are associative. You are looking for the wrong solution to your problem.
(See Andrea's answer, this is incorrect)
The only transformation from the previous state is that the keys are strings, rather than integers.
$keys = array_map('strval', array_keys($foo));
$values = array_values($foo);
$foo = array_combine($keys, $values);
There is no need to do something like this
The values are already "indexed". If you run
$foo = ["hello", "hi", [5, 10]];
echo $foo[0];
You will get hello (starting from 0)
Don't know what you're trying to achive, but as I see you want to convert your array indexes into strings:
$_foo = [
"0" => "hello",
"1" => "hi",
"2" => [5, 10],
];
$foo = [];
foreach($_foo as $key => $value) {
$foo[(string) $key] = $value;
}
var_dump($foo);
But I think that's just redicilous, to convert array indexes into strings. I don't know if you're aware, but you already can access your array with indexes: 0, 1 or 2.
var_dump($foo[1]); // hi
