Arrays 致命错误:无法将字符串偏移量用作数组
当我处理子内部数组时Arrays 致命错误:无法将字符串偏移量用作数组,arrays,loops,php,Arrays,Loops,Php,当我处理子内部数组时 Array ( [0] => Array ( [auth_id] => 1 [auth_section] => Client Data Base [auth_parent_id] => 0 [auth_admin] => 1 [sub] => Array (
Array
(
[0] => Array
(
[auth_id] => 1
[auth_section] => Client Data Base
[auth_parent_id] => 0
[auth_admin] => 1
[sub] => Array
(
[0] => Array
(
[auth_id] => 2
[auth_section] => Client Contact
[auth_parent_id] => 1
[auth_admin] => 1
)
)
)
[1] => Array
(
[auth_id] => 6
[auth_section] => All Back Grounds
[auth_parent_id] => 0
[auth_admin] => ,4
[sub] => Array
(
[0] => Array
(
[auth_id] => 7
[auth_section] => Edit Custom
[auth_parent_id] => 6
[auth_admin] => 1
)
)
)
[2] => Array
(
[auth_id] => 20
[auth_section] => Order Mail
[auth_parent_id] => 0
[auth_admin] => 1
[sub] =>
)
}
for($in=0;$in 对于($g=0;$g),可以使用is_array()函数测试偏移量类型。如果想要更好的答案,请发布处理代码。
测试$auth[$in]和$autsub[$g]是否为数组。问题是数组中的最后一个条目(2
)没有sub
数组,但您仍在尝试访问它。在循环之前,您需要检查该条目是否存在以及它是否为数组。下面是使用foreach
的示例:
for($in=0 ; $in < count($auth); $in++){
$autsub = $auth[$in]["sub"];
for($g=0 ; $g<count($autsub); $g++){
echo $autsub[$g]["auth_id"];
}
}
foreach ($array as $auth) {
if (!empty($auth['sub']) && is_array($auth['sub'])) {
foreach ($auth['sub'] as $sub) {
if (!empty($sub['auth_id'])) {
echo $sub['auth_id'];
}
}
}
}