when I var_dump these constants,these values is
GMP_ROUND_ZERO 0
GMP_ROUND_PLUSINF 1
GMP_ROUND_MINUSINF 2
GMP_VERSION "5.0.2"
The constants below are defined by this extension, and will only be available when the extension has either been compiled into PHP or dynamically loaded at runtime.
when I var_dump these constants,these values is
GMP_ROUND_ZERO 0
GMP_ROUND_PLUSINF 1
GMP_ROUND_MINUSINF 2
GMP_VERSION "5.0.2"