runkit_constant_add

(PECL runkit >= 0.7.0)

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

runkit_constant_add ( string $constname , mixed $value ) : bool

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, or Resource value to store in the new constant.

成功时返回 TRUE，或者在失败时返回 FALSE。

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