sort.php

      
      
      
  
  
   array('name' => 'Name', 'grade' => xx.x)
  $students = array(
      256 => array('name' => 'Jon', 'grade' => 98.5),
      2 => array('name' => 'Vance', 'grade' => 85.1),
      9 => array('name' => 'Stephen', 'grade' => 94.0),
      364 => array('name' => 'Steve', 'grade' => 85.1),
      68 => array('name' => 'Rob', 'grade' => 74.6)
  );
  
  // Name sorting function:
  function name_sort($x, $y) {
      return strcasecmp($x['name'], $y['name']);
  }
  
  // Grade sorting function:
  // Sort in DESCENDING order!
  function grade_sort($x, $y) {
      return ($x['grade'] < $y['grade']);
  }
  
  // Print the array as is:
  echo '
Array As Is
' . print_r($students, 1) . '
';
  
  // Sort by Name:
  uasort($students, 'name_sort');
  echo '
Array Sort By Name
' . print_r($students, 1) . '
';
  
  // Sort by grade:
  uasort($students, 'grade_sort');
  echo '
Array Sort By Grade
' . print_r($students, 1) . '
';
  ?>