Merge branch 'PHP-7.0' into PHP-7.1

* PHP-7.0:
  More int->size_t and string overflow fixes

diff --cc Zend/zend_strtod.c
Simple merge

diff --cc ext/bz2/bz2.c
Simple merge

diff --cc ext/pgsql/pgsql.c
Simple merge

diff --cc ext/spl/spl_directory.c
Simple merge

diff --cc ext/standard/html.c
Simple merge

diff --cc ext/standard/math.c
Simple merge