Php 从调用的函数返回值

在以下自定义函数中

function get_txtlocal_balance() {
    $username = variable_get('sms_txtlocal_email');
    $hash = variable_get('sms_txtlocal_password');
    $data = array('username' => $username, 'hash' => $hash);
    $ch = curl_init('http://api.txtlocal.com/balance/');
    curl_setopt($ch, CURLOPT_POST, true);
    curl_setopt($ch, CURLOPT_POSTFIELDS, $data);
    curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
    $response = curl_exec($ch);
    curl_close($ch);
    $balance = json_decode($response, true);
    echo $balance['balance']['sms'];
}

我从本地账户返回余额。现在，我试着将这种平衡呼应到位

$balance = get_txtlocal_balance();
$title = 'SMS Integration - Current Balance: ' . $balance;

<span><?php echo $title;?></span>

$balance=get_txtlocal_balance（）；
$title='SMS集成-当前余额：'$平衡；

但是返回的值没有出现在正确的位置，它总是返回在页面的顶部，有人能发现我做错了什么吗？

替换以下代码：

function get_txtlocal_balance() {
$username = variable_get('sms_txtlocal_email');
$hash = variable_get('sms_txtlocal_password');
$data = array('username' => $username, 'hash' => $hash);
$ch = curl_init('http://api.txtlocal.com/balance/');
curl_setopt($ch, CURLOPT_POST, true);
curl_setopt($ch, CURLOPT_POSTFIELDS, $data);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
$response = curl_exec($ch);
curl_close($ch);
$balance = json_decode($response, true);
return $balance['balance']['sms'];
}

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返回$balance['balance']['sms']啊，上帝。哈哈。谢谢如果你愿意的话，可以贴出来作为回答？@u_mulder你真谦虚；-）