php - Codeigniter if uri_to_assoc parameters not set how to find that -

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inside the codeigniter controller I have to find out whether the values ​​are set correctly if somebody displays a proper error message Do not want. So please let me know how to find out. Please see the examples below,

When the price is set correctly, 

  www.example.com/features/    > 
 
 
 You must check each value starting with the  second  segment.  
 In Administrator:  
  Public Function _checkUriSegments () {$ Params = $ this- & gt; Yuri- & gt; Uri_to_assoc (2); Var_dump ($ parameter); Foreign currency ($ par value = $ gt; = $ value as $ $ $) {if (! $ Params [$ key]) {return false; True} true; } Edit Public Function () {if (! $ This-> _checkUriSegments ()) {Echo 'wrong url!'; break; } // make some edits}

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