从数组到 JSON

Question

我正在解析文章，我需要将所有解析的数据放在 josn.xml 中。我尝试将它们放入数组，然后将其转换为 JSON，但我遇到了一些麻烦。我得到这样的JSON：

[{"title":"title1"}][{"title":"title2"}][{"title":"title3"}]

但我想要这样：

[{"title":"title1"},{"title":"title2"},{"title":"title3"}]

我怎么能做到这一点？

<?

foreach ($content_prev as $el) {

    $pq = pq($el);

    $date = $pq->find('time')->html();

    $title = $pq->find('h3 a')->html();

    $link = $pq->find('h3 a')->attr('href');

    $data_link = file_get_contents($link);

    $document_с = phpQuery::newDocument($data_link);

    $content = $document_с->find('.td-post-content');

    $arr = array (

        array( 

            "title" => $title

        ), 

    ); 

    echo json_encode($arr, JSON_UNESCAPED_UNICODE);

}

Answer 1

尝试删除array一个$arr使用以下一种。<?foreach ($content_prev as $el) {&nbsp; &nbsp; $pq = pq($el);&nbsp; &nbsp; $date = $pq->find('time')->html();&nbsp; &nbsp; $title = $pq->find('h3 a')->html();&nbsp; &nbsp; $link = $pq->find('h3 a')->attr('href');&nbsp; &nbsp; $data_link = file_get_contents($link);&nbsp; &nbsp; $document_с = phpQuery::newDocument($data_link);&nbsp; &nbsp; $content = $document_с->find('.td-post-content');&nbsp; &nbsp; $arr[] = array (&nbsp;&nbsp; &nbsp; &nbsp; &nbsp; "title" => $title&nbsp; &nbsp; &nbsp; &nbsp; );}echo json_encode($arr, JSON_UNESCAPED_UNICODE);