我有下面的數組,我試圖轉換爲以逗號分隔的字符串。多維數組到字符串php
$users_array = Array
(
[0] => Array
(
[0] => Array
(
[user_id] => 1
)
[1] => Array
(
[user_id] => 5
)
)
[1] => Array
(
[0] => Array
(
[user_id] => 6
)
[1] => Array
(
[user_id] => 13
)
)
)
然後我試圖在字符串轉換用foreach
for($i = 0; $i < count($users_array); $i++){
$xyz[] = implode(",",$users_array[$i]);
}
$users = implode(',',$xyz);
但它拋出錯誤Message: Array to string conversion
我怎樣才能將其轉換爲字符串如1,5,6,13
?
謝謝