Recently, I was in a situation, when I had to cache some data in PHP. It was not a big project, so I didn't wanted to use redis or any other heavy tool. I decided to store the data in file. Let's
serialize! ... Or
var_export! ... Or
I had no time than, I chose
var_export. But I decided to benchmark my choice.
json_encode have symmetric functions, which reproduce the original data. But
var_export slightly differs. It creates a PHP-parsable string, it can be evaluated by
eval, or can be included by
Here you can find the benchmark code.
And here is the result (PHP 7.0, Ubuntu 16.04, Intel i5-4590 @3.30GHz, SSD):
Grey is the import, Green is the export
For me a little bit surprising.
serialize or the
json_encode functions are the best choices. In cases, where import is applied more frequently, maybe the serialize is the best choice.