Mantis / PHP compatibility notes

Mantis 1.2.x

$ phpcompatinfo print mantisbt/ -R --report full >/tmp/rpt

filtering output: 
$ grep -v -E "(4\..\..|5.(0\..|1\.0))[^/]" /tmp/rpt |grep "^. [0-9]$"

---------------------------------------------------------------------

  json                                  5.2.0             5.2.0               2
  curl_setopt_array                     curl-5.1.3        5.1.3               1
  json_decode                           json-5.2.0        5.2.0               1
  json_encode                           json-5.2.0        5.2.0               1

>>> json / url api, not used in core - only plugins (source control, maybe others ?)


  classMemberAccessOnInstantiation      standard-5.4.0    5.4.0               1

>>> false positive ? see https://github.com/llaville/php-compat-info/issues/97

  xmlwriter                                               5.1.2               2
  XMLWriter                             xmlwriter         5.1.2               1

>>> xml import/export plugin

C quoted_printable_encode               standard-5.3.0    5.3.0               1
C PHP_WINDOWS_VERSION_MAJOR             Core-5.3.0        5.3.0               1
  PCRE_VERSION                          pcre              5.2.4               2
  memory_get_peak_usage                 standard-5.2.0    5.2.0               4
  MYSQLI_BINARY_FLAG                    mysqli            5.3.0               3

>>> OK, compatibility code in place

  DateTime                              date-5.2.0        5.2.0               3
  DateTimeZone                          date-5.2.0        5.2.0               2

>>> adodb, soap tests

  sys_get_temp_dir                      standard-5.2.1    5.2.1               2

>>> phpmailer 5.2.16 (mantis 1.2.16dev only)

  spl_autoload_register                 SPL-5.1.2         5.1.2               2

>>> MantisGraph plugin

  GD_VERSION                            gd-5.2.4          5.2.4               5

>>> ??? not in source code

  session_register                      session           4.0.0/5.3.27        2

>>> adodb