Are there any benefits to php form builder?

The PHP form generator has certain benefits in that it can reduce the burden on the class and does not occupy resources, but it is generally of little use because it cannot meet the needs of all iterators, and it cannot go back or fast forward. And it is a one-time use

The php generator is a function introduced in php5.5 and is often not fully utilized. In fact, it is a very useful function. , I believe that many PHP developers don't know about generators, because the role of generators is not very obvious. Generators are simple iterators, nothing more.

Different from the standard PHP iterator, the PHP generator does not require the class to implement the Iterator interface, thus reducing the burden on the class. The generator will calculate and output the values ​​to be iterated according to the requirements, which has a negative impact on the performance of the application. There are significant implications, just imagine. If the standard PHP iterator often performs iteration operations in memory, which requires pre-calculating the data set, the performance is low. If a specific method is used to calculate a large amount of data, the impact on performance will be even greater. At this time, we can use the generator to timely Calculate the continued value of the output without occupying precious memory resources.

The PHP generator cannot meet the needs of all iterative operations, because if there is no query, the generator will never know what the next value to be iterated is. There is no way to go back or fast forward in the generator. The generator is still One-time, it is not possible to iterate over the same generator multiple times, however, the generator can be rebuilt or cloned if necessary.

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