PHP中的MongoDB - 如何將項目插入到集合中的數組中？

Question

這必須是容易的，但我似乎無法推測出來......讓說我有一個收集users，這是集合中的第一項：

{ 
    "_id" : ObjectId("4d8653c027d02a6437bc89ca"), 
    "name" : "Oscar Godson", 
    "email" : "oscargodson@xxx.com", 
    "password" : "xxxxxx", 
    "tasks" : [ 
    { 
     "task" : "pick up stuff", 
     "comment" : "the one stuff over there" 
    }, 
    { 
     "task" : "do more stuff", 
     "comment" : "lots and lots of stuff" 
    } 
] } 

如何與PHP驅動程序MongoDB的將我然後去並添加另一個「任務」的「任務」數組中此項目集合中

Answer 1

使用蒙戈的$push操作：

$new_task = array(
    "task" => "do even more stuff", 
    "comment" => "this is the new task added" 
); 
$collection->update(
    array("_id" => ObjectId("4d8653c027d02a6437bc89ca")), 
    array('$push' => array("tasks" => $new_task)) 
);