runkit_constant_redefine
(PECL)
runkit_constant_redefine --
Redefine an already defined constant
说明
bool
runkit_constant_redefine ( string constname, mixed newvalue )
参数
constname
Constant to redefine. Either string indicating global constant,
or classname::constname indicating class constant.
newvalue
New value to assign to constant.
返回值
如果成功则返回 TRUE，失败则返回 FALSE。