php - Splitting a string up into parts -

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I have a list of questions in the table, some of which are only for display if some criteria are found. Criteria in one record can be as simple as 4002 = Y, where 4002 is a question number and Y is the answer. If 4002 = yes the question is to be displayed.

I have no problem with the only one criteria for the record.

But there are such records which are the following criteria: 

  402 = y or 7003 = y or 905 = y or 7007 = y or 7008 = y or 7010 = or Or 7011 = y or 7013 = y

In this case, I will need to evaluate each option to see whether the question should be displayed or not.

Other questions will have the same string; Some small, some tall

How would I break the best string so that I can evaluate each section at a time and still be able to compare them correctly?

I do some extent data, but I do not want that if possible.

Is this a regex () task (I'm not yet familiar with it)? I have tried list () , split () and explosion () with less success.

Any indication if your input string is actually a bunch of different simple criteria with "OR", then appreciate it. A simple explosion will actually move: 

  $ criteria = "402 = Y or 7003 = Y or 905 = Y or 7007 = Y or 7008 = Y or 7010 = Y or 7011 = Y or 7013 = Y "; $ Split_criteria = Explosion ("or", $ criteria); Foreign currency ($ split_criteria as a single) {echo trim ($ single) "\ N"; }

However if it is more complex (if you allow or simultaneously, or if you say so) you will need to have more sensible parsets accordingly.


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