将邮件发送到每个数组值

Question

我有一个数组$电子邮件。以下print_r($emails)输出：

Array
(
    [0] => Array
        (
            [user_email] => 
        )

    [1] => Array
        (
            [user_email] => mail_1@gmail.com
        )

    [2] => Array
        (
            [user_email] => mail_2@gmail.com
        )
)

现在我想向此阵列中的所有电子邮件地址发送电子邮件。我试过了：

foreach($emails as $contact) {

$to      =  $contact;
$subject = 'the subject';
$message = 'hello';
mail($to, $subject, $message, $headers);

}

我得到的是：Warning: mail() expects parameter 1 to be string, array given

Answer 1

foreach($emails as $contact) {

$to      =  $contact['user_email'];
$subject = 'the subject';
$message = 'hello';
mail($to, $subject, $message, $headers);

}