Gist for spyc php bug: https://github.com/mustangostang/spyc/issues/35

spyc-bug-output.txt

====================
Test name: test with tilde, should print NULL
====================

INPUT:

---
1: a
2: ~

RESULT:

array(2) {
  [1]=>
  string(1) "a"
  [2]=>
  NULL
}

====================
Test name: test with empty map value, should print NULL, prints empty string
====================

INPUT:

---
1: a
2:

RESULT:

array(2) {
  [1]=>
  string(1) "a"
  [2]=>
  string(0) ""
}

spyc-empty-value.php

<?php

# see http://stackoverflow.com/questions/833927/yaml-dictionary-with-empty-value


include "Spyc.php";

test_spyc("test with tilde, should print NULL", "---
1: a
2: ~");

test_spyc("test with empty map value, should print NULL, prints empty string", "---
1: a
2: ");


function test_spyc($test_name, $input) {
  print "\n====================\nTest name: $test_name\n====================\n\n";
  print "INPUT:\n\n$input\n\n";
  $arr = spyc_load($input);
  print "RESULT:\n\n";
  var_dump($arr);
}