如何在php中访问JSON-Object的JSON属性？

I've got a really weird problem and I can't figure out why. The situation is quite simple. My Android app uploads JSON data to a php script on my server. Right now I am trying to parse the data.

This is the JSON-Array passed to the script (via httpPost.setEntity ()):

[{"friends_with_accepted":"false","friends_with_synced":"false","friends_with_second_id":"5","friends_with_first_id":"6"}]

This is the php script:

<?php
// array for JSON response
$response = array();

$json = file_get_contents ('php://input');
$jsonArray = json_decode ($json, true);
foreach ($jsonArray as $jsonObject) {
    $firstId   = $jsonObject['friends_with_first_id'];
    $accepted = $jsonObject ['friends_with_accepted'];
    $secondId = $jsonObject ['friends_with_second_id'];
    $synced   = $jsonObject ['friends_with_synced'];

    echo "accepted: ".$accepted."synced: ".$synced;
} ?>

And this is the response I get from the script:

accepted: synced: false

Why is the "synced" property correctly passed, but not the "accepted" property?? I can't see the difference. Btw, firstId and secondId are parsed correctly as well.

Okay, i just found the problem:

Instead of

$accepted = $jsonObject ['friends_with_accepted'];

I deleted the space between jsonObject and the bracket

$accepted = $jsonObject['friends_with_accepted'];

I have absolutely no idea, why it worked for the other properties, but that doesn't matter for me right now.