将单个数组转换为变量

Question

从下面的代码2通过$sendData引用代码2。我想完全删除代码1，只使用代码2。请帮助我将代码1写入代码2，也许以数组

的形式代码1

$sendData = '{ "messages" : [ { "content" :  "Hello", "destination" : "0718860000" } ] }';

代码2

$options = array(
'http' => array(
'header'  => array("Content-Type: application/json", $authHeader),
'method'  => 'POST',
'content' => $sendData,
)
);

Answer 1

$options = [
'http' => [
'header'  => [ "Content-Type: application/json", $authHeader ],
'method'  => 'POST',
'content' => json_encode([
"messages" => [
[ 
"content" => "Hello",
"destination" => "0718860000",
],
],
]),
),
);