Re: sorting in array

weetat <weetat.yeo@xxxxxxxxx> · Mon, 31 Jul 2006 14:56:46 +0800

Hi ,

  Doesn't work .
  Any ideas ?

Thanks
Peter Lauri wrote:
   function cmpcountry($a, $b)
   {

         $country1 = $a['country'];
         $country2 = $b['country'];

	   if($country1=='') return 1;
	   else return ($country1 < $country2) ? -1 : 1;

   }

-----Original Message-----
From: weetat [mailto:weetat.yeo@xxxxxxxxx] 
Sent: Monday, July 31, 2006 12:32 PM
To: php-general@xxxxxxxxxxxxx
Subject:  sorting in array

Hi all ,

  I have array value as shown below, i have paste my test php code below:
  I have problem when doing usort() when 'country' = '', i would like to 
display records where country = '' last. Any ideas how to do that ?

Thanks

   $arraytest= array(
      array
         (
             'country' => '',
         )
      ,
      array
         (
             'country' => 'Thailand',
         )
      ,
      array
         (
             'country' => 'Singapore',
         )
      ,
      array
         (
             'country' => 'Singapore',
         )
      ,
      array
         (
             'country' => '',
         )
       ,
	  array
         (
             'country' => '',
         )
	,
	array
         (
             'country' => '',
         )

      );

   function cmpcountry($a, $b)
   {

         $country1 = $a['country'];
         $country2 = $b['country'];

          return ($country1 < $country2) ? -1 : 1;
   }

     usort($arraytest,"cmpcountry");
     while(list($name,$value)=each($arraytest)){
	   echo $name."<br><br>";

	   while(list($n,$v) = each($arraytest[$name])){
	       echo $v."<br><br>";
	   }
      }

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