Using environment variables to pass parameters was right, when you run your scripts in a batch mode as your company did before, but it is no longer a good solution, especially with data that is so dynamic (different from request to request).

You can run scripts sequentially, but in a web application environment, response time to each user is usually quite sensitive. Believe me, very soon some user will start to yell at you.

To be frank, whoever did the analysis and design missed something really important, and you are entitled to have more time to make things right with one punch.

(I wish I didn't put that comment under tilly's post, as tilly was just trying to answer the direct question, and obviously his answer was correct. Well, that happens...)

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