I'm having trouble understanding how the array is being sorted.
Specifically; each echo statement is the same so how does it know which function to echo?
Thanks
$students = array (
256 => array ('name' => 'Jon', 'grade' => 98.5),
2 => array ('name' => 'Vance', 'grade' => 85.1),
9 => array ('name' => 'Stephen', 'grade' => 94.0),
364 => array ('name' => 'Steve', 'grade' => 85.1),
68 => array ('name' => 'Rob', 'grade' => 74.6)
);
// Name sorting function:
function name_sort ($x, $y) {
return strcasecmp($x['name'], $y['name']);
}
// Grade sorting function:
// Sort in DESCENDING order!
function grade_sort ($x, $y) {
return ($x['grade'] < $y['grade']);
}
// Print the array as is:
echo '<h3>Array As Is</h3><pre>' . print_r($students, 1) . '</pre>';
// Sort by name:
uasort ($students, 'name_sort');
// Print the array now:
echo '<h3>Array Sorted By Name</h3><pre>' . print_r($students, 1) . '</pre>';
// Sort by grade:
uasort ($students, 'grade_sort');
*/
// Print the array now:
echo '<h3>Array Sorted By Grade</h3><pre>' . print_r($students, 1) . '</pre>';
?>
</body>
</html>
