function cmp($a, $b)
{
    return strcmp($a->name, $b->name);
}
usort($your_data, "cmp");
          Or the shorter version using closures:
usort($your_data, function($a, $b)
{
    return strcmp($a->name, $b->name);
});
          
          Ref : http://php.net/manual/en/function.usort.php
          http://stackoverflow.com/questions/4282413/php-sort-array-of-objects-by-object-fields
 
 

