Get min and max value in PHP Array

Question

I have an array like this:

array (0 => 
  array (
    \'id\' => \'20110209172713\',
    \'Date\' => \'2011-02-09\',
    \'Weight\' => \'200\',
  ),
  1 =>          


        

Answer 1

$num = array (0 => array ('id' => '20110209172713', 'Date' => '2011-02-09', 'Weight' => '200'),
          1 => array ('id' => '20110209172747', 'Date' => '2011-02-09', 'Weight' => '180'),
          2 => array ('id' => '20110209172827', 'Date' => '2011-02-09', 'Weight' => '175'),
          3 => array ('id' => '20110211204433', 'Date' => '2011-02-11', 'Weight' => '195'));

    foreach($num as $key => $val)   
    {                       
        $weight[] = $val['Weight'];
    }

     echo max($weight);
     echo min($weight);