Decode php://input json

Question

我有来自file_get_contents('php://input')的这段文字：

[{"email":"[e-mail]","event":"processed","sg_event_id":"JJTr9qA","sg_message_id":"AjvX5L7IQeGOfxmJV-OCnw","smtp-id":"<[e-mail]>","timestamp":16813363}]

我需要获取电子邮件或事件等单个元素，但无法让json_decode和其他人工作。

$obj = json_decode(file_get_contents('php://input'));

如何在 json 数据中引用单个元素？

Answer 1

你有一个数组，所以，你需要得到第一个元素：

$json = '[{"email":"[e-mail]","event":"processed","sg_event_id":"JJTr9qA","sg_message_id":"AjvX5L7IQeGOfxmJV-OCnw","smtp-id":"<[e-mail]>","timestamp":16813363}]';
$obj = json_decode($json);
echo $obj[0]->email; //output [e-mail]

Answer 2

来了，这是一个完全有效的答案：

<?php
$str = '[{"email":"[e-mail]","event":"processed","sg_event_id":"JJTr9qA","sg_message_id":"AjvX5L7IQeGOfxmJV-OCnw","smtp-id":"<[e-mail]>","timestamp":16813363}]';
$obj = json_decode($str);
echo $obj[0]->email;