php - 非法字符串偏移量警告PHP(Illegal string offset Warning PHP)

Question

I get a strange PHP error after updating my php version to 5.4.0-3.

(将我的php版本更新到5.4.0-3后，我收到一个奇怪的PHP错误。)

I have this array:

(我有这个数组：)

Array
(
    [host] => 127.0.0.1
    [port] => 11211
)

When I try to access it like this I get strange warnings

(当我尝试像这样访问它时，会收到奇怪的警告)

 print $memcachedConfig['host'];
 print $memcachedConfig['port'];


 Warning: Illegal string offset 'host' in ....
 Warning: Illegal string offset 'port' in ...

I really don't want to just edit my php.ini and re-set the error level.

(我真的不想只编辑我的php.ini并重新设置错误级别。)

  ask by thesonix translate from so

Answer 1

The error Illegal string offset 'whatever' in... generally means: you're trying to use a string as a full array.

(错误Illegal string offset 'whatever' in...通常意味着：您正在尝试将字符串用作完整数组。)

That is actually possible since strings are able to be treated as arrays of single characters in php.

(这实际上是可能的，因为在php中，字符串可以被视为单个字符的数组。)

So you're thinking the $var is an array with a key, but it's just a string with standard numeric keys, for example:

(因此，您认为$ var是带有键的数组，但是它只是具有标准数字键的字符串 ，例如：)

$fruit_counts = array('apples'=>2, 'oranges'=>5, 'pears'=>0);
echo $fruit_counts['oranges']; // echoes 5
$fruit_counts = "an unexpected string assignment";
echo $fruit_counts['oranges']; // causes illegal string offset error

You can see this in action here: http://ideone.com/fMhmkR

(您可以在这里看到实际的效果： http : //ideone.com/fMhmkR)

For those who come to this question trying to translate the vagueness of the error into something to do about it, as I was.

(对于那些遇到此问题的人，就像我一样，试图将错误的模糊性转化为解决该问题的方法。)