php Wikipedia API JSON获取页面ID

Question

I want to get some wikipedia information using their api but how would I get the page id? Because it is in the JSON array.

echo $json["query"]["pages"][HERE_IS_THE_PAGE_ID]["pageid"];

Answer 1

One way is to loop through the "pages" array.

foreach ($json["query"]["pages"] as $page_id => $this_page) {
    echo $page_id;
    // OR
    echo $this_page['pageid'];
}

If you're certain that the data only contains one page, you could just access the array key:

$page_id = key($json["query"]["pages"]);

Here's an example.

Or use current() or reset() to access the (first) page array:

$this_page = current($data["Something is wrong"]["pages"]);
$page_id=$this_page["pageid"];

Here's an example.