通过 PHPMailer 的 WooComerce SMTP

Question

我通过functions.php 设置了一个wordpress 站点，以将SMTP 与PHPMailer 结合使用（下面的代码片段）。

add_action( 'phpmailer_init', 'setup_phpmailer_init' );

function setup_phpmailer_init( PHPMailer $phpmailer ) {

    $phpmailer->Host = 'HOSTNAME'; // for example, smtp.mailtrap.io

    $phpmailer->Port = 587; // set the appropriate port: 465, 2525, etc.

    $phpmailer->Username = 'YOURUSERNAME'; // your SMTP username

    $phpmailer->Password = 'YOURPASSWORD'; // your SMTP password

    $phpmailer->SMTPAuth = true; 

    $phpmailer->SMTPSecure = 'tls'; // preferable but optional

    $phpmailer->IsSMTP();

除了 WooCommerce 之外，这对所有内容都没有问题。WooCommerce 无法发送电子邮件，并出现以下错误：

2020-08-18T00:36:33+00:00 CRITICAL Uncaught TypeError: Argument 1 passed to setup_phpmailer_init() must be an instance of PHPMailer, instance of PHPMailer\PHPMailer\PHPMailer given, called in PathToWordpress/web/wp/wp-includes/class-wp-hook.php on line 287 and defined in PathToWordpress/web/app/themes/theme-name/functions.php:362

Stack trace:

#0 PathToWordpress/web/wp/wp-includes/class-wp-hook.php(287): setup_phpmailer_init()

#1 PathToWordpress/web/wp/wp-includes/class-wp-hook.php(311): WP_Hook->apply_filters()

#2 PathToWordpress/web/wp/wp-includes/plugin.php(544): WP_Hook->do_action()

#3 PathToWordpress/web/wp/wp-includes/pluggable.php(494): do_action_ref_array()

#4 PathToWordpress/web/app/plugins/woocommerce/includes/class-wc-emails.php(650): wp_mail()

#5 PathToWordpress/web/wp/wp-includes/class-wp-hook.php(287): WC_Emails->no_stock()

#6 PathToWordpress/web/wp/wp-includes/class-wp-hook.php(311): WP_Hook->apply in PathToWordpress/web/app/themes/theme-name/functions.php on line 362

可能是什么原因导致此错误？

Answer 1

转动这条线：函数 setup_phpmailer_init( PHPMailer $phpmailer) {进入此（删除 PHPMailer）修复了错误函数 setup_phpmailer_init($phpmailer) {我不完全确定为什么