Merge branch 'PHP-5.6' of git.php.net:php-src into PHP-5.6

* 'PHP-5.6' of git.php.net:php-src:
  Remove XFAIL from a test
  Declare a number of functions as variadic.
EXPERIMENTAL flags for pg_select/pg_insert/pg_update/pg_delete are removed.

Use string escape for exotic types that allows to handle any data types. i.e. Array, JSON, JSONB, etc will work.
Add escape only query for better performance which removes meta data look up. Limitations forced by pg_convert() can be avoided with this. PGSQL_DML_ESCAPE constant is added for it.
Merge branch 'PHP-5.6'

* PHP-5.6:
  EXPERIMENTAL flags for pg_select/pg_insert/pg_update/pg_delete are removed.