The result of fann_create_train() is a "blank" or "empty" training data resource which can be saved to a file using fann_save_train(). <?php$num_data = 4;$num_input = 2; $num_output = 1;// Create an empty 'template' training resource in memory$empty_training_resource = fann_create_train ($num_data , $num_input , $num_output);// Save template.datafann_save_train($empty_training_resource, 'template.data');?>File Saved (template.data):4 2 10 0 0 0 0 0 0 0 0 0 0 0