Log Message:
Update php56 to 5.6.26 (PHP 5.6.26).

15 Sep 2016, PHP 5.6.26

- Core:
  . Fixed bug #72907 (null pointer deref, segfault in gc_remove_zval_from_buffer
    (zend_gc.c:260)). (Laruence)

- Dba:
  . Fixed bug #71514 (Bad dba_replace condition because of wrong API usage).
    (cmb)
  . Fixed bug #70825 (Cannot fetch multiple values with group in ini file).
    (cmb)

- EXIF:
  . Fixed bug #72926 (Uninitialized Thumbail Data Leads To Memory Leakage in
    exif_process_IFD_in_TIFF). (Stas)

- FTP:
  . Fixed bug #70195 (Cannot upload file using ftp_put to FTPES with
    require_ssl_reuse). (Benedict Singer)

- GD:
  . Fixed bug #66005 (imagecopy does not support 1bit transparency on truecolor
    images). (cmb)
  . Fixed bug #72913 (imagecopy() loses single-color transparency on palette
    images). (cmb)
  . Fixed bug #68716 (possible resource leaks in _php_image_convert()). (cmb)

- Intl:
  . Fixed bug #73007 (add locale length check). (Stas)

- JSON:
  . Fixed bug #72787 (json_decode reads out of bounds). (Jakub Zelenka)

- mbstring:
  . Fixed bug #66797 (mb_substr only takes 32-bit signed integer). (cmb)
  . Fixed bug #72910 (Out of bounds heap read in mbc_to_code() / triggered by
    mb_ereg_match()). (Stas)

- MSSQL:
  . Fixed bug #72039 (Use of uninitialised value on mssql_guid_string). (Kalle)

- Mysqlnd:
  . Fixed bug #72293 (Heap overflow in mysqlnd related to BIT fields). (Stas)

- Phar:
  . Fixed bug #72928 (Out of bound when verify signature of zip phar in
    phar_parse_zipfile). (Stas)
  . Fixed bug #73035 (Out of bound when verify signature of tar phar in
    phar_parse_tarfile). (Stas)

- PDO:
  . Fixed bug #60665 (call to empty() on NULL result using PDO::FETCH_LAZY
    returns false). (cmb)

- PDO_pgsql:
  . Implemented FR #72633 (Postgres PDO lastInsertId() should work without
    specifying a sequence). (Pablo Santiago Sánchez, Matteo)
  . Fixed bug #72759 (Regression in pgo_pgsql). (Anatol)

- SPL:
  . Fixed bug #73029 (Missing type check when unserializing SplArray). (Stas)

- Standard:
  . Fixed bug #72823 (strtr out-of-bound access). (cmb)
  . Fixed bug #72278 (getimagesize returning FALSE on valid jpg). (cmb)
  . Fixed bug #65550 (get_browser() incorrectly parses entries with \ 
"+" sign).
    (cmb)
  . Fixed bug #71882 (Negative ftruncate() on php://memory exhausts memory).
    (cmb)
  . Fixed bug #73011 (integer overflow in fgets cause heap corruption). (Stas)
  . Fixed bug #73017 (memory corruption in wordwrap function). (Stas)
  . Fixed bug #73045 (integer overflow in fgetcsv caused heap corruption). (Stas)
  . Fixed bug #73052 (Memory Corruption in During Deserialized-object Destruction)
    (Stas)

- Streams:
  . Fixed bug #72853 (stream_set_blocking doesn't work). (Laruence)

- Wddx:
  . Fixed bug #72860 (wddx_deserialize use-after-free). (Stas)
  . Fixed bug #73065 (Out-Of-Bounds Read in php_wddx_push_element). (Stas)

- XML:
  . Fixed bug #72085 (SEGV on unknown address zif_xml_parse). (cmb)
  . Fixed bug #72927 (integer overflow in xml_utf8_encode). (Stas)

- ZIP:
  . Fixed bug #68302 (impossible to compile php with zip support). (cmb)