Z_SET_REFCOUNT_P  313 mysqli/mysqli.c #define Z_SET_REFCOUNT_P(pz, rc)	((pz)->refcount = rc)
Z_SET_REFCOUNT_P   31 mysqlnd/mysqlnd_priv.h #define Z_SET_REFCOUNT_P(pz, rc)	((pz)->refcount = rc)
Z_SET_REFCOUNT_P   41 zip/php_zip.h  #  define Z_SET_REFCOUNT_P(pz, rc)  pz->refcount = rc