Krak Marshal
A library for marshaling data with a functional design. This is useful for transforming/marshaling data for API output or for any other types types of transforming.
Usage
<?php
use Krak\Marshal as m;
$users = // get users from an orm or something
$m = m\map(function($user)
{
return m\merge([
m\properties(['id', 'first_name', 'last_name']),
function($user) {
return [
'like_count' => (int) $user->like_count,
'biography' => substr($user->biography, 0, 64),
'created_at_ts' => m\timestamp($user->created_at),
];
}
]);
});
$marshaled = $m($users);
/*
[
[
'id' => ...,
'first_name' => ...,
'last_name' => ...,
'biography' => ...,
'created_at_ts' => ...,
],
...
]
*/Accessors
For certain marshalers, you'll want to marshal an entity in the form of the array or object. For that, we have accessors. An accessor is just a tuple of functions for getting and setting based on the type of data.
- key accessor: the key accessor will access a key from an array
- property accessor: the property accessor will access a property from an object
<?php
use Krak\Marshal as m;
list($get, $has) = m\key_accessor();
$data = ['id' => 1];
print_r($has($data, 'id')); // true
print_r($get($data, 'id')); // 1