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Effectively parsing a string containing key+operator+value combinations.


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Hi all,

 

I would like to parse a string containing key operator and value combinations like this:

 

type=location&postdate>10-12-2013&published!=0

 

The first step is to explode it based on & of course. But I am looking for an effective way to parse the rest. I could use a if, ifelse, ifelse to search for the operator and then explode on that, like this:

if (strpos('<=', $var) > 0)
{
  $arr = explode('<=', $var);
  $operator = '<=';
  $key      = $arr[0];
  $value    = $arr[1];
}
ifelse (strpos('>=', $var) > 0)
{
  $arr = explode('>=', $var);
  $operator = '>=';
  $key      = $arr[0];
  $value    = $arr[1];
}
etc...

But that is very ugly. Do any of you have any suggestions? Maybe regex?

 

Thanks in advance,

Edited by truijens

Do you create those urls?

 

You should only put these characters in a url, or else have them % encoded

 

ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789-._~:/?#[]@!$&'()*+,;=.

Do you create those urls?

 

You should only put these characters in a url, or else have them % encoded

 

ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789-._~:/?#[]@!$&'()*+,;=.

 

Nah, they won't be used as URL. A setting "string" somewhere, but yes, they are purposefully very similar to querystrings to make it a bit easier on our app builder. So everything is kind of the same/familiar to him.

Edited by truijens
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