php - Converting tickboxes in a form to any array in $_POST -

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What's the best way to collect data from the form using the checkbox, so it's well worth the $ _POST For example, in my form I will have HTML which looks like this (x = tick): 

  [x] option is a [] option two [X ] Option three

which I want to translate from an array of $ _POST to an array: 

  array ([a] => option one "[B] = & gt;" Option three ")

Is there a good shortcut to do this?

Post-document "itemprop =" text "> 
  & lt; input type =" checkbox "name =" tick box [a] "value =" option one "check =" check "& gt; & lt ; Input type = "checkbox" name = "tick box [b]" value = "option two" & gt; & gt; input type = "checkbox" name = "tick box [c]" value = "option three" check = "Check" & gt;

yields 

  array ([A] => "option one", [c] = & gt; "Option three",)

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