我有下面的数组,我试图转换为以逗号分隔的字符串。多维数组到字符串php
$users_array = Array
(
[0] => Array
(
[0] => Array
(
[user_id] => 1
)
[1] => Array
(
[user_id] => 5
)
)
[1] => Array
(
[0] => Array
(
[user_id] => 6
)
[1] => Array
(
[user_id] => 13
)
)
)
然后我试图在字符串转换用foreach
for($i = 0; $i < count($users_array); $i++){
$xyz[] = implode(",",$users_array[$i]);
}
$users = implode(',',$xyz);
但它抛出错误Message: Array to string conversion
我怎样才能将其转换为字符串如1,5,6,13
?
谢谢