通过PHP中的JSONArray进行Foreach [英] Foreach through JSONArray in PHP

问题描述

我收到此错误:

警告:第49行的[page] .php中为foreach()提供了无效的参数

Warning: Invalid argument supplied for foreach() in [page].php on line 49

这是$ json变量的回显: [{"d":"2011-03-26","q":1,"t":1060},{"d":"2011-03-26","q":2,"t":1060},{"d":"2011-03-26","q":1,"t":1060}]

This is an echo of the $json variable: [{"d":"2011-03-26","q":1,"t":1060},{"d":"2011-03-26","q":2,"t":1060},{"d":"2011-03-26","q":1,"t":1060}]

我正在尝试像这样迭代:

And I'm trying to iterate through like so:

foreach($json as $obj) { // <--THIS IS LINE 49
    // Stuff
}

推荐答案

只是一个猜测:

您的$json变量是一个字符串.您需要使用json_decode将其转换为对象，以迭代该对象:

Your $json variable is a string. You'll need to convert it to an object using json_decode to iterate through the object:

$json_obj = json_decode( $json );
foreach( $json_obj as $obj )
{
  //stuff
}

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