PTR_STACK_BLOCK_SIZE   30 Zend/zend_ptr_stack.c 	stack->top_element = stack->elements = (void **) emalloc(sizeof(void *)*PTR_STACK_BLOCK_SIZE);
PTR_STACK_BLOCK_SIZE   31 Zend/zend_ptr_stack.c 	stack->max = PTR_STACK_BLOCK_SIZE;