注册页面在其他页面调用时应该怎么写？

想做一个弹出层注册页面

新页面中

 {if @in_array('username', $regfield)}

这段无效，应该怎么写？

 {if @in_array('username', $regfield)}

        <div class="form-group">

            <label class="control-label visible-ie8 visible-ie9">会员名称</label>

            <input class="form-control form-control-solid placeholder-no-fix" type="text" autocomplete="off" placeholder="会员名称" name="data[username]" />

        </div>

        {/if}

        {if @in_array('phone', $regfield)}

        <div class="form-group">

            <label class="control-label visible-ie8 visible-ie9">手机号码</label>

            <input class="form-control form-control-solid placeholder-no-fix" type="text" autocomplete="off" placeholder="手机号码" name="data[phone]" />

        </div>

        {/if}

        {if @in_array('email', $regfield)}

        <div class="form-group">

            <label class="control-label visible-ie8 visible-ie9">安全邮箱</label>

            <input class="form-control form-control-solid placeholder-no-fix" type="text" autocomplete="off" placeholder="安全邮箱" name="data[email]" />

        </div>

        {/if}

        <div class="form-group">

            <label class="control-label visible-ie8 visible-ie9">登录密码</label>

            <input class="form-control form-control-solid placeholder-no-fix" type="password" autocomplete="off" placeholder="登录密码" name="data[password]" />

        </div>

        <div class="form-group">

            <label class="control-label visible-ie8 visible-ie9">确认密码</label>

            <input class="form-control form-control-solid placeholder-no-fix" type="password" autocomplete="off" placeholder="确认密码" name="data[password2]" />

        </div>

        {if $code}

        <div class="form-group">

            {if strlen(SYS_GEE_CAPTCHA_ID) > 10}

            {dr_geetest()}

            {else}

            <div class="col-sm-6" style="padding-left:0;padding-right:0">

                <input class="form-control form-control-solid placeholder-no-fix" type="text" autocomplete="off" placeholder="验证码" name="code" />

            </div>

            <div class="col-sm-6">

                <img align="absmiddle" id="dr_code_img" style="cursor:pointer;" onclick="this.src='{dr_member_url('api/captcha', array('width' => 120, 'height' => 40))}&'+Math.random();" src="{dr_member_url('api/captcha', array('width' => 120, 'height' => 40))}" />

            </div>

            {/if}

        </div>

        {/if}