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WordPress函数register_new_user()注册新用户

Wordpress函数register New User()注册新用户
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WordPress函数register_new_user()注册新用户

　　在 WordPress CMS内容管理系统中，register_new_user()函数是 WordPress 中内置函数。WordPress PHP 函数register_new_user()注册新用户

　　WordPress 中的该register_new_user函数用于处理新用户帐户的注册。当调用此函数时，它会执行一系列操作以确保新用户在 WordPress 系统中正确注册。该函数首先验证提供的用户数据，例如用户名和电子邮件地址。它会检查用户名的唯一性，并验证电子邮件地址是否尚未与现有帐户关联。如果数据通过这些检查，该函数将继续在 WordPress 数据库中创建新的用户记录。

　　创建用户记录后，该register_new_user功能会为新用户分配默认角色和功能。这可确保新用户根据预定义的角色具有与 WordPress 网站交互的适当权限。此外，该函数还会触发一系列操作和钩子，让开发人员能够扩展或修改注册流程。这些钩子可用于发送欢迎电子邮件、记录注册事件或与第三方服务集成。总之，该register_new_user函数自动执行在 WordPress 中创建和配置新用户帐户的过程，处理验证、数据库插入和角色分配，同时通过钩子提供可扩展性。

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register_new_user()函数基本语法

描述

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用法

$user_login = "johndoe";
$user_email = "john.doe@example.com";
$user = register_new_user($user_login, $user_email);
  • $user_loginstring：必填，用户登录的用户名。
  • $user_email字符串：必填。用于发送密码和添加的用户电子邮件地址。

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register_new_user()函数

　　在 WordPress 中，该has_tag()函数register_new_user 函数将新用户插入 WordPress 数据库。当新用户通过 WordPress 的登录页面注册时，将使用此函数。它与wp_create_user()不同之处在于，它需要有效的用户名和电子邮件地址，但不允许选择密码，而是使用
wp_generate_password()生成随机密码。本身不处理用户创建，它仅检查提交的用户名和电子邮件的有效性并生成随机密码（源文件可参考这里）

function register_new_user( $user_login, $user_email ) {
	$errors = new WP_Error();

	$sanitized_user_login = sanitize_user( $user_login );
	/**
	 * Filters the email address of a user being registered.
	 *
	 * @since 2.1.0
	 *
	 * @param string $user_email The email address of the new user.
	 */
	$user_email = apply_filters( 'user_registration_email', $user_email );

	// Check the username.
	if ( '' === $sanitized_user_login ) {
		$errors->add( 'empty_username', __( '<strong>Error:</strong> Please enter a username.' ) );
	} elseif ( ! validate_username( $user_login ) ) {
		$errors->add( 'invalid_username', __( '<strong>Error:</strong> This username is invalid because it uses illegal characters. Please enter a valid username.' ) );
		$sanitized_user_login = '';
	} elseif ( username_exists( $sanitized_user_login ) ) {
		$errors->add( 'username_exists', __( '<strong>Error:</strong> This username is already registered. Please choose another one.' ) );
	} else {
		/** This filter is documented in wp-includes/user.php */
		$illegal_user_logins = (array) apply_filters( 'illegal_user_logins', array() );
		if ( in_array( strtolower( $sanitized_user_login ), array_map( 'strtolower', $illegal_user_logins ), true ) ) {
			$errors->add( 'invalid_username', __( '<strong>Error:</strong> Sorry, that username is not allowed.' ) );
		}
	}

	// Check the email address.
	if ( '' === $user_email ) {
		$errors->add( 'empty_email', __( '<strong>Error:</strong> Please type your email address.' ) );
	} elseif ( ! is_email( $user_email ) ) {
		$errors->add( 'invalid_email', __( '<strong>Error:</strong> The email address is not correct.' ) );
		$user_email = '';
	} elseif ( email_exists( $user_email ) ) {
		$errors->add(
			'email_exists',
			sprintf(
				/* translators: %s: Link to the login page. */
				__( '<strong>Error:</strong> This email address is already registered. <a href="%s">Log in</a> with this address or choose another one.' ),
				wp_login_url()
			)
		);
	}

	/**
	 * Fires when submitting registration form data, before the user is created.
	 *
	 * @since 2.1.0
	 *
	 * @param string   $sanitized_user_login The submitted username after being sanitized.
	 * @param string   $user_email           The submitted email.
	 * @param WP_Error $errors               Contains any errors with submitted username and email,
	 *                                       e.g., an empty field, an invalid username or email,
	 *                                       or an existing username or email.
	 */
	do_action( 'register_post', $sanitized_user_login, $user_email, $errors );

	/**
	 * Filters the errors encountered when a new user is being registered.
	 *
	 * The filtered WP_Error object may, for example, contain errors for an invalid
	 * or existing username or email address. A WP_Error object should always be returned,
	 * but may or may not contain errors.
	 *
	 * If any errors are present in $errors, this will abort the user's registration.
	 *
	 * @since 2.1.0
	 *
	 * @param WP_Error $errors               A WP_Error object containing any errors encountered
	 *                                       during registration.
	 * @param string   $sanitized_user_login User's username after it has been sanitized.
	 * @param string   $user_email           User's email.
	 */
	$errors = apply_filters( 'registration_errors', $errors, $sanitized_user_login, $user_email );

	if ( $errors->has_errors() ) {
		return $errors;
	}

	$user_pass = wp_generate_password( 12, false );
	$user_id   = wp_create_user( $sanitized_user_login, $user_pass, $user_email );
	if ( ! $user_id || is_wp_error( $user_id ) ) {
		$errors->add(
			'registerfail',
			sprintf(
				/* translators: %s: Admin email address. */
				__( '<strong>Error:</strong> Could not register you&hellip; please contact the <a href="mailto:%s">site admin</a>!' ),
				get_option( 'admin_email' )
			)
		);
		return $errors;
	}

	update_user_meta( $user_id, 'default_password_nag', true ); // Set up the password change nag.

	if ( ! empty( $_COOKIE['wp_lang'] ) ) {
		$wp_lang = sanitize_text_field( $_COOKIE['wp_lang'] );
		if ( in_array( $wp_lang, get_available_languages(), true ) ) {
			update_user_meta( $user_id, 'locale', $wp_lang ); // Set user locale if defined on registration.
		}
	}

	/**
	 * Fires after a new user registration has been recorded.
	 *
	 * @since 4.4.0
	 *
	 * @param int $user_id ID of the newly registered user.
	 */
	do_action( 'register_new_user', $user_id );

	return $user_id;
}

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如何使用register_new_user()

　　基本注册使用给定的用户名和电子邮件地址注册新用户。

$user_login = "johndoe"; 
$user_email = " john.doe@example.com "; 
$user = register_new_user($user_login, $user_email);

　　重定向注册注册新用户并在注册成功后将其重定向到自定义页面。

$user_login = "janedoe"; 
$user_email = " jane.doe@example.com "; 
$user = register_new_user($user_login, $user_email); 

if (!is_wp_error($user)) { 
    $redirect_to = "welcome.php"; 
    wp_safe_redirect($redirect_to); 
    exit(); 
}

　　带有错误处理的注册注册新用户，如果注册失败则显示错误消息。

$user_login = "johndoe"; 
$user_email = " john.doe@example.com "; 
$user = register_new_user($user_login, $user_email); 

if (is_wp_error($user)) { 
    echo $user->get_error_message(); 
} else { 
    echo "注册成功！"; 
}

　　使用自定义用户角色注册使用自定义用户角色注册新用户。

$user_login = "johndoe"; 
$user_email = " john.doe@example.com "; 
$user_id = register_new_user($user_login, $user_email); 

if (!is_wp_error($user_id)) { 
    $user = new WP_User($user_id); 
    $user->set_role('custom_role'); 
}

　　使用附加用户元数据进行注册注册新用户并添加额外的用户元数据。

$user_login = "johndoe"; 
$user_email = " john.doe@example.com "; 
$user_id = register_new_user($user_login, $user_email); 

if (!is_wp_error($user_id)) { 
    add_user_meta($user_id, 'phone_number', '123-456-7890'); 
}

　　如何注册新用户

function register_user_with_error_handling($username, $email) {
 $user_id = register_new_user($username, $email);

 if (is_wp_error($user_id)) {
 $error_message = $user_id->get_error_message();
 // Handle the error accordingly
 echo 'Registration failed: ' . $error_message;
 } else {
 echo 'User registered successfully with ID: ' . $user_id;
 }
}
register_user_with_error_handling('sampleuser', 'sampleuser@example.com');

　　如何循环注册多个用户

function register_multiple_users($users) {
 foreach ($users as $user) {
 $user_id = register_new_user($user['username'], $user['email']);

 if (is_wp_error($user_id)) {
 echo 'Error registering ' . $user['username'] . ': ' . $user_id->get_error_message() . '<br>';
 } else {
 echo 'User ' . $user['username'] . ' registered successfully with ID: ' . $user_id . '<br>';
 }
 }
}

$users_to_register = [
 ['username' => 'user1', 'email' => 'user1@example.com'],
 ['username' => 'user2', 'email' => 'user2@example.com'],
];

register_multiple_users($users_to_register);

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