创建数组：

[{"id":674,"name":"北京理工大学"},{"id":675,"name":"南开大学"}]

$rs11="303,304";
$rs = explode(',',$rs11);  
for($i=0;$i<count($rs);$i++){ 
         $array[$i]['id'] = 1;
         $array[$i]['name'] = 2;
   }

echo "<pre>";

print_r($array);
echo "</pre>";

重点：$array[$i]['name'] = 2;

结果：

Array
(
    [0] => Array
        (
            [id] => 1
            [name] => 2
        )

    [1] => Array
        (
            [id] => 1
            [name] => 2
        )

)