目前jetpack提供了将订阅嵌入边栏小部件的唯一方法。注册一个新的侧边栏会是一个更好的主意，这不会超过几秒钟。

步骤1-为jetpack注册一个侧栏，只需在主题的functions.php 文件

register_sidebar( array(
    \'name\' => \'JetPack in page\',
    \'id\' => \'jetpack-in-page\',
    \'before_widget\' => \'<div id="jetpack">\',
    \'after_widget\' => \'</div>\',
    \'before_title\' => \'<h3>\',
    \'after_title\' => \'</h3>\'
) );

步骤2-您希望表单显示在哪里

<?php dynamic_sidebar( \'jetpack-in-page\' ); ?>

参考-register_sidebar(); （Wordpress Codex）

您可以使用跳过侧栏步骤the_widget() 模板中的函数显示所需小部件的实例。

尝试以下操作：（在functions.php中复制并粘贴下面的代码）

// Get page url >> webcheatsheet.com/php/get_current_page_url.php
function itp_current_page_url() {
$page_url = \'http\';
if( isset($_SERVER["HTTPS"]) && $_SERVER["HTTPS"] == "on" ) { $page_url .= "s" ;}
$page_url .= "://";
if( $_SERVER["SERVER_PORT"] != "80" ) {
    $page_url .=         $_SERVER["SERVER_NAME"].":".$_SERVER["SERVER_PORT"].$_SERVER["REQUEST_URI"];
} else {
    $page_url .= $_SERVER["SERVER_NAME"].$_SERVER["REQUEST_URI"];
}

return $page_url;
} // end itp_current_page_url

// Jetpack subscription form shortcode by http://www.itechplus.org
function itp_jetpack_subscription_form_shortcode( $atts, $content = \'\', $code = \'\' ) {
extract( shortcode_atts( array(
    \'title\' => \'Email Subscription\',
    \'desc\' => \'Enter your email address to subscribe to this website and receive notifications of new articles by email.\',
    \'button\' => \'Subscribe\',
    \'placeholder\' => \'Email Address\',
), $atts ) );

global $post;

// Build current page url
if( is_home() || is_front_page() ) {
    $url = home_url(\'/\');
} elseif( is_singular() ) {
    $url = get_permalink($post->ID);
} else {
    $url = itp_current_page_url();
}

$jetpack_subscribe = \'\';

// Build jetpack subscription form
if( $title != \'\' ) {
    $jetpack_subscribe .= \'<h3 class="widget-title">
        <label for="subscribe-field">\' . $title . \'</label>
    </h3>\';
}
$jetpack_subscribe .= \'<form id="subscribe-blog-blog_subscription-\' . time() . \'" accept-charset="\' . get_bloginfo( \'charset\' ) . \'" method="post" action="">\';
    if( $desc != \'\' ) {
        $jetpack_subscribe .= \'<p>\' . $desc . \'</p>\';
    }
    $jetpack_subscribe .= \'<p>
        <input id="subscribe-field" class="input email" type="email" placeholder="\'. $placeholder .\'" onblur="if( this.value == \\\'\\\' ) { this.value = \\\'\' . $placeholder . \'\\\'; }" onclick="if ( this.value == \\\'\' . $placeholder . \'\\\' ) { this.value = \\\'\\\'; }" value="\' . $placeholder . \'" style="width: 95%; padding: 1px 2px" name="email" />
    </p>
    <p>
        <input type="hidden" value="subscribe" name="action" />
        <input type="hidden" value="\' . $url . \'" name="source" />
        <input type="hidden" value="widget" name="sub-type">
        <input type="hidden" value="blog_subscription-\' . time() . \'" name="redirect_fragment" />
        <input type="submit" class="input subbmit" name="jetpack_subscriptions_widget" value="\' . $button . \'" />
    </p>
</form>\';

return $jetpack_subscribe;
}
add_shortcode( \'itp_email_subscription\', \'itp_jetpack_subscription_form_shortcode\' );

[itp_email_subscription title="Some Title" desc="Some description here" placeholder="Placeholder" button="Button"]