$array = array(

0=>array('id'=>50,'name'=>'Jack'),

1=>array('id'=>8,'name'=>'Tom'),

2=>array('id'=>9,'name'=>'Peter')

);

function sortArrByOneField(&$array, $field, $desc = false){

$fieldArr = array();

foreach ($array as $k => $v) {

$fieldArr[$k] = $v[$field];

}

$sort = $desc == false ? SORT_ASC : SORT_DESC;

array_multisort($fieldArr, $sort, $array);

}

sortArrByOneField($array,'id');

dd($array);