Yaml/php how to parse correctly?

Question

PHP

<?
var_dump(yaml_parse('foo: [b]'));
var_dump(yaml_parse('foo: [n]'));
var_dump(yaml_parse('foo: [y]'));

array(1) {
  ["foo"]=>
  array(1) {
    [0]=>
    string(1) "b"
  }
}
array(1) {
  ["foo"]=>
  array(1) {
    [0]=>
    bool(false)
  }
}
array(1) {
  ["foo"]=>
  array(1) {
    [0]=>
    bool(true)
  }
}

I expect n/y instead of false/true . How to achieve this?

Module Version	1.2.0
LibYAML Version	0.1.6

Answer 1

If you do not change the incoming yaml - then nothing. Y/N are key characters and are interpreted as booleans according to the specification . If you need to get a symbolic representation, enclose them in quotes:

var_dump(yaml_parse("foo: ['y']"));
array(1) {
  ["foo"]=>
  array(1) {
    [0]=>
    string(1) "y"
  }
}