numericMappingKeys.yml

--- %YAML:1.0
test: A sequence with an unordered array
brief: >
  A sequence with an unordered array
yaml: |
  1: foo
  0: bar
php: |
  array(1 => 'foo', 0 => 'bar')
---
test: Integers as Map Keys
brief: >
    An integer can be used as dictionary key.
yaml: |
    1: one
    2: two
    3: three
php: |
    array(
        1 => 'one',
        2 => 'two',
        3 => 'three'
    )