hhvm [HipHop VM v2.1.0-dev (rel)] syntax error, unexpected $end, expecting TC_DOLLAR_CURLY or TC_QUOTED_STRING when executing parse_ini_file. Issue occurs when an ini value ends with a dollar sign: somekey = "value$" but does not error if the dollar sign is in the middle of the string: anotherkey = "value$value"

loadConfig.php

<?php

$filename = 'test.ini';

$iniArray = parse_ini_file($filename, true);

var_dump($iniArray);

test.ini

[global]

fonts.trackingUrl = "https://fast.fonts.com/t/1.css?apiType=css&projectid=123"
serviceCache.1.cacheable = "true"
anotherkey = "value$value"
somekey = "value$"

Output:

$ php loadConfig.php 
array(1) {
  ["global"]=>
  array(4) {
    ["fonts.trackingUrl"]=>
    string(56) "https://fast.fonts.com/t/1.css?apiType=css&projectid=123"
    ["serviceCache.1.cacheable"]=>
    string(4) "true"
    ["anotherkey"]=>
    string(11) "value$value"
    ["somekey"]=>
    string(6) "value$"
  }
}
$ hhvm loadConfig.php 
syntax error, unexpected $end, expecting TC_DOLLAR_CURLY or TC_QUOTED_STRING or '"' in test.ini on line 7

bool(false)

Output with dollar sign escaped ( somekey = "value$" ) :

$ php loadConfig.php 
array(1) {
  ["global"]=>
  array(4) {
    ["fonts.trackingUrl"]=>
    string(56) "https://fast.fonts.com/t/1.css?apiType=css&projectid=123"
    ["serviceCache.1.cacheable"]=>
    string(4) "true"
    ["anotherkey"]=>
    string(11) "value$value"
    ["somekey"]=>
    string(6) "value$"
  }
}
$ hhvm loadConfig.php 
array(1) {
  ["global"]=>
  array(4) {
    ["fonts.trackingUrl"]=>
    string(56) "https://fast.fonts.com/t/1.css?apiType=css&projectid=123"
    ["serviceCache.1.cacheable"]=>
    string(4) "true"
    ["anotherkey"]=>
    string(11) "value$value"
    ["somekey"]=>
    string(6) "value$"
  }
}