WordPress 注册直接输入密码并检测密码强度

// 添加输入密码表单
add_action( 'register_form', function () { ?>
	<div class="user-pass1-wrap">
		<p>
			<label for="pass1"><?php _e( 'Password' ); ?></label>
		</p>

		<div class="wp-pwd">
			<input type="password" data-reveal="1" data-pw="<?php echo esc_attr( wp_generate_password( 16 ) ); ?>" name="pass1" id="pass1" class="input password-input" size="24" value="" autocomplete="off" aria-describedby="pass-strength-result" />
			<button type="button" class="button button-secondary wp-hide-pw hide-if-no-js" data-toggle="0" aria-label="<?php esc_attr_e( 'Hide password' ); ?>">
				<span class="dashicons dashicons-hidden" aria-hidden="true"></span>
			</button>
			<div id="pass-strength-result" class="hide-if-no-js" aria-live="polite"><?php _e( 'Strength indicator' ); ?></div>
		</div>
		<div class="pw-weak">
			<input type="checkbox" name="pw_weak" id="pw-weak" class="pw-checkbox" />
			<label for="pw-weak"><?php _e( 'Confirm use of weak password' ); ?></label>
		</div>
	</div>
		<p class="user-pass2-wrap">
			<label for="pass2"><?php _e( 'Confirm new password' ); ?></label>
			<input type="password" name="pass2" id="pass2" class="input" size="20" value="" autocomplete="off" />
		</p>
		<p class="description indicator-hint"><?php echo wp_get_password_hint(); ?></p>
    <?php
});

// 加载验证JS
add_action( 'login_enqueue_scripts', function () {
	if ( is_on_registration_page() && !wp_script_is( 'user-profile' ) ) {
		wp_enqueue_script('user-profile');
	}
});

// 验证
function is_on_registration_page() {
	return $GLOBALS['pagenow'] == 'wp-login.php' && isset( $_REQUEST['action'] ) && $_REQUEST['action'] == 'register';
}

// 错误提示
add_filter( 'registration_errors', function ( $errors ) {
	if ( empty( $_POST['pass1'] ) ) {
		$errors->add( 'password-required', '<strong>Error</strong>: Please enter a password.' );
	}

	if ( empty( $_POST['pass2'] ) ) {
		$errors->add( 'password-required', '<strong>Error</strong>: Please enter a password confirmation.' );
	}

	return $errors;
});


// 生成随机密码
add_filter( 'random_password', function ( $password ) {
	if ( is_on_registration_page() && ! empty( $_POST['pass1'] ) ) {
		$password = $_POST['pass1'];
	}

	return $password;
});

// 自定义邮件内容
add_filter( 'wp_new_user_notification_email', function ( $wp_new_user_notification_email, $user ) {
	$message = sprintf( __( 'Username: %s' ), $user->user_login ) . "\r\n\r\n";
	$message .= __( 'Password: As entered during your registration' ) . "\r\n\r\n";
	$message .= wp_login_url() . "\r\n";

	$wp_new_user_notification_email['message'] = $message;

	return $wp_new_user_notification_email;
}, 10, 2 );