为什么我不能在PHP中访问此数组的第二级？

Question

Recently, with help from the Stack Oveflow community, I learned how to work with JSON data that I got from the Google API. So, I thought I had a grasp on how to do roughly the same kind of action with JSON data from Blogger, again using the Google API.

However, it's been driving me crazy. I can't seem to get a handle on how to get at the right level of the array that I need.

What I am trying to do is get a selection of blog posts and then cherry pick out information and display it. Should be straight forward.

Right now my blog has only three test entries. I want to see if I can loop through the array I create from the JSON to display data. If I use this code:

$recentBlog = json_decode(file_get_contents("https://www.googleapis.com/blogger/v3/blogs/xxxxxxxxxxxxxxxxxxxx/posts?key=xxxxxxxxxxxxxxxxxxxxxxxxxxxxx", true));

foreach ($recentBlog as $item)
{
    var_dump($item[0]);
}

... then I get data the first item only from the array. This makes sense to me. I looped through the array, but on each call, I only asked for the first item at the 0 position.

So I thought I would do this:

$recentBlog = json_decode(file_get_contents("https://www.googleapis.com/blogger/v3/blogs/xxxxxxxxxxxxxxxxxxxx/posts?key=xxxxxxxxxxxxxxxxxxxxxxxxxxxxx", true));

$count = 0;
foreach ($recentBlog as $item)
{
    var_dump($item[$count]);
    $count = $count + 1;
}

... but I get the second and third item only. I do not get the first item anymore.

What is wrong with my code?

If it helps, this is Google's documentation about the format of the JSON that I get back.

Answer 1

You probably have a wrong parenthesis in your JSON decoding call:

$recentBlog = json_decode(file_get_contents("https://[...]"), true);

Note that I moved one parenthesis directly behind the file_get_contents() function. This way json_decode() will return you an iterable array.