generators

I made this generator of numbers that are saved in a csv file that I open in excel, the combinations are generated in Column ... arquivo.write(str(lista1)) lista_guardar = lista.append(arquivo) print(lista_guardar)

I made a random number generator which generates and saves in File.txt I did generate 3 combinations, it happens that when ... ') as arquivo: arquivo.write(str(lista1)) lista_guardar = lista.append(arquivo) print(lista_guardar)

Starting with PHP 5.5, the generator was implemented in the language. It can be used within a function from the keyword yield ... antage of save this memory and simplify the use of a iterator , What are the other advantages of using the generator in PHP?