PHP:非法字符串偏移量

问题描述

我知道已经有这样的问题，但这并没有帮助我.

I know there already are questions like this, but It didn't help me.

我的网站上出现以下错误:

I get the follow error on my site:

该行是 <?= $bmstatus["networkConnections"] ?> p2p nodes

The line is <?= $bmstatus["networkConnections"] ?> p2p nodes

如果我print_r $ bmstatus，则得到:

if I print_r $bmstatus, then I get:

{
    "numberOfBroadcastsProcessed": 2308,
    "networkStatus": "connectedAndReceivingIncomingConnections",
    "softwareName": "PyBitmessage",
    "softwareVersion": "0.4.1",
    "networkConnections": 52,
    "numberOfMessagesProcessed": 22888,
    "numberOfPubkeysProcessed": 8115
}

如何从此数组中获取信息?

How to I fetch the information from this array?

我已经尝试了$bmstatus['networkConnections']和$bmstatus->networkConnections但是两者都返回了该错误?

I've tried both $bmstatus['networkConnections'] and $bmstatus->networkConnectionsbut both is returning that error?

推荐答案

$bmstatus包含JSON字符串.您必须先对其进行解码，然后才能从中提取所需的信息.为此，您可以使用内置函数 json_decode() (第二个参数设置为TRUE获取关联数组，而不是对象):

$bmstatus contains a JSON string. You have to decode it first to be able to extract the required information out of it. For this purpose, you can use the built-in function json_decode() (with the second parameter set as TRUE to get an associative array, instead of an object):

$json = json_decode($bmstatus, true);
echo $json['networkConnections'];

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