在PHP中创建JSON对象并通过Firebase推送通知发送[重复]

i am new to php. i am implementing Firebase push notification service in PHP .

The required json object is like

{ "data": {
    "score": "5x1",
    "time": "15:10"
  },
  "to" : "bk3RNwTe3H0:CI2k_HHwgIpoDKCIZvvDMExUdFQ3P1..."
}

Now in firebase i have to send my data in this format but i am not sure how to make JSON object of this data and use this object in firebase .

And if I want to use Array of IDs then how this will work?

As per official firebase documentation they didn't define method to use array of ID's.

https://firebase.google.com/docs/cloud-messaging/downstream

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Create an array in a same format that you want to sent to Firebase like bellow

$arr = ['data'=> [
        'score'=> "5x1",
        'time'=> "15:10"
        ],
        "to" => "bk3RNwTe3H0:CI2k_HHwgIpoDKCIZvvDMExUdFQ3P1..."
      ];

and then use the php function json_encode(var); and it will return you the json object.

json_encode($arr)

and if i want to use Array of id then how this will work. I am not sure about this.

If you are trying to send a POST with PHP you could use cURL:

<?php
    $firebase_url = 'https://fcm.googleapis.com/fcm/send';
    $message = [
        "data" => [
            "score" => "5x1",
            "time" => "15:10"
        ],
        "to": "bk3RNwTe3H0:CI2k_HHwgIpoDKCIZvvDMExUdFQ3P1..."
    ];

    $json_message = json_encode($message);

    //open connection
    $ch = curl_init();

    curl_setopt($ch, CURLOPT_URL, $firebase_url);
    curl_setopt($ch, CURLOPT_POST, true);
    curl_setopt($ch, CURLOPT_POSTFIELDS, $json_message);
    curl_setopt($ch, CURLOPT_HTTPHEADER, [
        'Content-Type: application/json',
        'Content-Length: ' . strlen($json_message)
    ]);
    curl_setopt( $ch, CURLOPT_RETURNTRANSFER, true );

    //execute post
    $result = curl_exec($ch);

    print $result;

I will recommend using Guzzle which is a third party library and cleaner and more usable/understandable. To install it:

php composer.phar require guzzlehttp/guzzle

And some examples here: http://docs.guzzlephp.org/en/latest/