如何在按钮单击时发送 wp_mail？

Question

我正在我的 WordPress 插件中构建一个选项页面，我有一个表单，其中包含收件人、发件人、主题和消息以及保存和发送按钮。

这个想法是你填写收件人，发件人，主题和消息点击保存然后点击发送发送消息。我在单击按钮时尝试运行发送功能时遇到问题。

我已签出：Wordpress Plugin: Call function on button click in admin panel

还签出了Is this the right way to execute some PHP in my plugin after a button click on an options page?

我的代码如下：

add_action('admin_menu', 'custom_mail_menu');
function custom_mail_menu() {

//create new top-level menu
add_options_page('Custom Mail Settings', 'Custom Mail Settings', 'administrator', __FILE__, 'custom_mail_settings_page');

//call register settings function
add_action( 'admin_init', 'custom_mail_settings' );
}

function custom_mail_settings() {
//register our settings
register_setting( 'custom-mail-settings-group-15167', 'custom_mail_to' );
register_setting( 'custom-mail-settings-group-15167', 'custom_mail_from' );
register_setting( 'custom-mail-settings-group-15167', 'custom_mail_sub' );
register_setting( 'custom-mail-settings-group-15167', 'custom_mail_message' );
}

function sendMail() {
$sendto = esc_attr( get_option('custom_mail_to') );
$sendfrom =  esc_attr( get_option('custom_mail_from') );
$sendsub = esc_attr( get_option('custom_mail_sub') );
$sendmess = esc_attr( get_option('custom_mail_message') );
$headers = "From: Wordpress <" . $sendfrom . ">";
wp_mail($sendto, $sendsub, $sendmess, $headers);

}

function custom_mail_settings_page() {

if (!current_user_can('manage_options'))  {
    wp_die( __('You do not have sufficient pilchards to access this page.')    );
}


?>
<div class="wrap">
<h2>Custom Mail Settings</h2>

<form method="post" action="options.php">
    <?php settings_fields( 'custom-mail-settings-group-15167' ); ?>
    <?php do_settings_sections( 'custom-mail-settings-group-15167' ); ?>
    <table class="form-table" style="width: 50%">
        <tr valign="top">
            <th scope="row">To</th>
            <td>
                <input style="width: 100%" type="text" name="custom_mail_to" value="<?php echo esc_attr( get_option('custom_mail_to') ); ?>" />
            </td>
        </tr>

        <tr valign="top">
            <th scope="row">From</th>
            <td>
                <input style="width: 100%" type="text" name="custom_mail_from" value="<?php echo esc_attr( get_option('custom_mail_from') ); ?>" />
            </td>
        </tr>

        <tr valign="top">
            <th scope="row">Subject</th>
            <td>
                <input style="width: 100%" type="text" name="custom_mail_sub" value="<?php echo esc_attr( get_option('custom_mail_sub') ); ?>" />
            </td>
        </tr>
        <tr valign="top">
        <th scope="row">Message</th>
            <!-- <td><input type="text" name="custom_mail_message" value="?php echo esc_attr( get_option('custom_mail_message') ); ?>" /></td> /-->
        <td>
            <textarea style="text-align: left;" name="custom_mail_message" rows="10" cols="62"><?php echo esc_attr( get_option('custom_mail_message') ); ?></textarea>
        </td>
        </tr>
        <tr>
            <td></td>
            <td><?php submit_button('Save'); ?><td><?php submit_button('send'); ?></td></td>

        </tr>
    </table>
  </form>
</div>

所以我的问题是：当在我的表单中单击发送按钮并使用表单提供的值时，我将如何运行sendMail() 函数？

Answer 1

您可以在您的函数中检查帖子提交：

<?php
function sendMail() {
    if($_POST['send']) {
        $sendto = esc_attr( get_option('custom_mail_to') );
        $sendfrom =  esc_attr( get_option('custom_mail_from') );
        $sendsub = esc_attr( get_option('custom_mail_sub') );
        $sendmess = esc_attr( get_option('custom_mail_message') );
        $headers = "From: Wordpress <" . $sendfrom . ">";
        wp_mail($sendto, $sendsub, $sendmess, $headers);
    }
}

在您的表单上，删除操作值 - 将其留空：

<form method="post" action="">

也更改您的submit_button，以便它可以将send 值作为键发布，因为我们正在寻找$_POST['send'] 来发送邮件：

<?php submit_button('Send', 'primary', 'send'); ?>