runkit7_constant_add

(PECL runkit7 >= Unknown)

runkit7_constant_add — Similar to define(), but allows defining in class definitions as well

说明

runkit7_constant_add(string $constname, mixed $value, int $newVisibility = ?): bool

参数

constname

Name of constant to declare. Either a string to indicate a global constant, or classname::constname to indicate a class constant.

value

NULL, Bool, Long, Double, String, Array, or Resource value to store in the new constant.

newVisibility

Visibility of the constant, for class constants. Public by default. One of the RUNKIT7_ACC_* constants.

返回值

成功时返回 true， 或者在失败时返回 false。

参见