- var_dump: documentation ( source)
<?php
$user_data = [
'one' => 'one value',
'two' => 'another value',
'three' => 'last value'
];
$fields_position = ['field1' => 0, 'field2' => 3];
$values = [
'John',
'Doe',
'555 23 58 45',
'Evergreen Terrace'
];
foreach($fields_position as $idx => $pos) {
$user_data[$idx] = $values[$pos];
}
var_dump($user_data);