m_calloc 43 ext/mysqlnd/mysqlnd_alloc.h void * (*m_calloc)(unsigned int nmemb, size_t size MYSQLND_MEM_D); m_calloc 82 ext/mysqlnd/mysqlnd_alloc.h #define mnd_calloc(nmemb, size) mysqlnd_allocator.m_calloc((nmemb), (size) MYSQLND_MEM_C)