函数文档

send_confirmation_on_profile_email()

💡 云策文档标注

概述

send_confirmation_on_profile_email() 函数在用户尝试更改电子邮件地址时发送确认请求邮件。它验证用户身份和电子邮件有效性,生成安全哈希并更新用户元数据,然后通过 wp_mail() 发送包含确认链接的邮件。

关键要点

  • 函数在用户个人资料页面尝试更改电子邮件地址时触发,发送确认邮件以确保安全性。
  • 验证当前用户 ID 与 POST 数据中的 user_id 匹配,防止未授权更改。
  • 检查新电子邮件地址是否有效(使用 is_email())且未被其他用户使用(使用 email_exists()),否则添加错误到 WP_Error 对象。
  • 生成基于时间、随机数和电子邮件的 MD5 哈希,存储为 _new_email 用户元数据。
  • 使用 new_user_email_content 过滤器允许自定义邮件内容,支持占位符如 ###USERNAME###、###ADMIN_URL### 等。
  • 邮件内容通过 str_replace() 动态替换占位符,包括确认链接(使用 self_admin_url())。
  • 发送邮件后,将 POST 中的 email 字段重置为当前用户的原始电子邮件地址。
  • 自 WordPress 4.9.0 起,此函数从多站点特定文件移至核心,适用于所有安装类型。

代码示例

// 示例调用场景:在用户个人资料更新处理中
if ( isset( $_POST['email'] ) && $_POST['email'] !== $current_user->user_email ) {
    send_confirmation_on_profile_email();
}

注意事项

  • 函数依赖于全局 $errors 变量,如果未定义,会初始化为 WP_Error 对象。
  • 确认链接使用 self_admin_url() 生成,确保指向正确的管理页面(如 profile.php?newuseremail=hash)。
  • 邮件主题通过 sprintf() 和翻译函数 __() 本地化,支持多语言站点。
  • 在电子邮件已存在时,会删除 _new_email 用户元数据以避免冲突。
  • 自版本 3.0.0 引入,4.9.0 后不再仅限于多站点,需注意兼容性。

📄 原文内容

Sends a confirmation request email when a change of user email address is attempted.

Source

function send_confirmation_on_profile_email() {
	global $errors;

	$current_user = wp_get_current_user();
	if ( ! is_object( $errors ) ) {
		$errors = new WP_Error();
	}

	if ( $current_user->ID !== (int) $_POST['user_id'] ) {
		return false;
	}

	if ( $current_user->user_email !== $_POST['email'] ) {
		if ( ! is_email( $_POST['email'] ) ) {
			$errors->add(
				'user_email',
				__( '<strong>Error:</strong> The email address is not correct.' ),
				array(
					'form-field' => 'email',
				)
			);

			return;
		}

		if ( email_exists( $_POST['email'] ) ) {
			$errors->add(
				'user_email',
				__( '<strong>Error:</strong> The email address is already used.' ),
				array(
					'form-field' => 'email',
				)
			);
			delete_user_meta( $current_user->ID, '_new_email' );

			return;
		}

		$hash           = md5( $_POST['email'] . time() . wp_rand() );
		$new_user_email = array(
			'hash'     => $hash,
			'newemail' => $_POST['email'],
		);
		update_user_meta( $current_user->ID, '_new_email', $new_user_email );

		$sitename = wp_specialchars_decode( get_option( 'blogname' ), ENT_QUOTES );

		/* translators: Do not translate USERNAME, ADMIN_URL, EMAIL, SITENAME, SITEURL: those are placeholders. */
		$email_text = __(
			'Howdy ###USERNAME###,

You recently requested to have the email address on your account changed.

If this is correct, please click on the following link to change it:
###ADMIN_URL###

You can safely ignore and delete this email if you do not want to
take this action.

This email has been sent to ###EMAIL###

Regards,
All at ###SITENAME###
###SITEURL###'
		);

		/**
		 * Filters the text of the email sent when a change of user email address is attempted.
		 *
		 * The following strings have a special meaning and will get replaced dynamically:
		 *
		 *  - `###USERNAME###`  The current user's username.
		 *  - `###ADMIN_URL###` The link to click on to confirm the email change.
		 *  - `###EMAIL###`     The new email.
		 *  - `###SITENAME###`  The name of the site.
		 *  - `###SITEURL###`   The URL to the site.
		 *
		 * @since MU (3.0.0)
		 * @since 4.9.0 This filter is no longer Multisite specific.
		 *
		 * @param string $email_text     Text in the email.
		 * @param array  $new_user_email {
		 *     Data relating to the new user email address.
		 *
		 *     @type string $hash     The secure hash used in the confirmation link URL.
		 *     @type string $newemail The proposed new email address.
		 * }
		 */
		$content = apply_filters( 'new_user_email_content', $email_text, $new_user_email );

		$content = str_replace( '###USERNAME###', $current_user->user_login, $content );
		$content = str_replace( '###ADMIN_URL###', esc_url( self_admin_url( 'profile.php?newuseremail=' . $hash ) ), $content );
		$content = str_replace( '###EMAIL###', $_POST['email'], $content );
		$content = str_replace( '###SITENAME###', $sitename, $content );
		$content = str_replace( '###SITEURL###', home_url(), $content );

		/* translators: New email address notification email subject. %s: Site title. */
		wp_mail( $_POST['email'], sprintf( __( '[%s] Email Change Request' ), $sitename ), $content );

		$_POST['email'] = $current_user->user_email;
	}
}

Hooks

apply_filters( ‘new_user_email_content’, string $email_text, array $new_user_email )

Filters the text of the email sent when a change of user email address is attempted.

Changelog

Version Description
4.9.0 This function was moved from wp-admin/includes/ms.php so it’s no longer Multisite specific.
3.0.0 Introduced.