Array
(
[0] => Array
(
[id] => 100334
[name] => tom
)
[1] => Array
(
[id] => 100336
[name] => jeff
)
[2] => Array
(
[id] => 100338
[name] => mary
)
[3] => Array
(
[id] => 100411
[name] => peter
)
)
如何做成一维数组?
最终再用implode变成
$num = 100334,100336,100338,100411