解码php：// input json

Question

I have this text from file_get_contents('php://input') :

[{"email":"text@examlple.com","event":"processed","sg_event_id":"JJTr9qA","sg_message_id":"AjvX5L7IQeGOfxmJV-OCnw","smtp-id":"<AfxmJV-OCnw@ismon1.sendgrid.net>","timestamp":16813363}]

I need to get single element like email or event, but haven't been able to get json_decode and others to work.

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

How can I reference a single element in the json data?

Answer 1

You have an array, so, you need to get the first element:

$json = '[{"email":"text@examlple.com","event":"processed","sg_event_id":"JJTr9qA","sg_message_id":"AjvX5L7IQeGOfxmJV-OCnw","smtp-id":"<AfxmJV-OCnw@ismon1.sendgrid.net>","timestamp":16813363}]';

$obj = json_decode($json);
echo $obj[0]->email; //output text@examlple.com

Answer 2

Here you go, here's a fully working answer:

<?php

$str = '[{"email":"text@examlple.com","event":"processed","sg_event_id":"JJTr9qA","sg_message_id":"AjvX5L7IQeGOfxmJV-OCnw","smtp-id":"<AfxmJV-OCnw@ismon1.sendgrid.net>","timestamp":16813363}]';

$obj = json_decode($str);

echo $obj[0]->email;