$marray = array(
0 => array(
'title' =>'aaaa',
'value' => 'bbbb'),
1 => array(
'title' =>'cccc',
'value' => 'vvvv'),
2 => array(
'title' =>'bbbb',
'value' => 'yyyy'),
);
$property = 'title';
$direction = 'desc';
usort($marray,function($a,$b) use($property,$direction){
$temp = strcmp($a[$property], $b[$property]);
if($direction == "desc")return $temp > 0 ? 1 : -1;
return $temp < 0 ? -1 : 1;
});