未定义的偏移误差，但偏移不是未定义 [英] Undefined offset error, but offset is not undefined

问题描述

我收到：

Notice: Undefined offset: 0 

在我的code，不过，我可以的print_r我试图让元素和它的明确的规定。

in my code, however I can print_r the element I am trying to get and its clearly defined.

function get_members($entries_found) {
   $members = $entries_found[0]['member'];
   ...
}

如果我的print_r（$成员），我得到预期的输出，但我仍然得到通知。

If I print_r($members) I get the expected output, however I'm still getting the Notice.

任何线索？

推荐答案

不要

var_dump($entries_found);

要检查阵列确实具有零偏移。其他的事情你可以尝试将CH375复位数组指针

To check that the array does indeed have an offset of zero. Other things you can try would be reseting the array pointer

reset($entries_found);

检查，如果它的设置第一个

of checking if it's set first

if (isset($entries_found[0]['member'])) // do things

如果一切都失败了，你可以只是苏preSS该通知

If all else fails you could just supress the notice with

$members = @$entries_found[0]['member'];

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