Laravel 5-在服务器上使用Blade API编译字符串并进行插值 [英] Laravel 5 - Compile String and Interpolate Using Blade API on Server

问题描述

使用Blade服务容器，我想在其中包含一个带有标记的字符串并将其编译下来，以便可以将其添加到Blade模板中，并进一步进行插值.

Using the Blade service container I want to take a string with markers in it and compile it down so it can be added to the blade template, and further interpolated.

所以我在从以下数据库中检索到的服务器上有一个电子邮件字符串(为简洁起见):

So I have an email string (abridge for brevity) on the server retrieved from the database of:

<p>Welcome {{ $first_name }},</p>

我希望将其插值到

<p>Welcome Joe,</p> 

所以我可以将它作为$ content发送到Blade模板，并使其呈现所有内容和标记，因为Blade不会两次插值，现在我们的模板是客户端制作的，并存储在数据库中.

So I can send it to a Blade template as $content and have it render all the content and markup since Blade doesn't interpolate twice and right now our templates are client made and stored in the database.

Blade::compileString(value)会生成<p>Welcome <?php echo e($first_name); ?>,</p>，但是我无法弄清楚如何使用Blade API在字符串中获取$ first_name解析为Joe，并且稍后也不会在Blade模板中执行此操作.它只是在电子邮件中将其显示为带有PHP分隔符的字符串，例如:

Blade::compileString(value) produces <p>Welcome <?php echo e($first_name); ?>,</p>, but I can't figure out how to get $first_name to resolve to Joe in the string using the Blade API, and it doesn't do it within the Blade template later. It just displays it in the email as a string with PHP delimiters like:

<p>Welcome <?php echo e($first_name); ?>,</p>

有什么建议吗?

推荐答案

这应该做到:

// CustomBladeCompiler.php

use Symfony\Component\Debug\Exception\FatalThrowableError;

class CustomBladeCompiler
{   
    public static function render($string, $data)
    {
        $php = Blade::compileString($string);

        $obLevel = ob_get_level();
        ob_start();
        extract($data, EXTR_SKIP);

        try {
            eval('?' . '>' . $php);
        } catch (Exception $e) {
            while (ob_get_level() > $obLevel) ob_end_clean();
            throw $e;
        } catch (Throwable $e) {
            while (ob_get_level() > $obLevel) ob_end_clean();
            throw new FatalThrowableError($e);
        }

        return ob_get_clean();
    }
}

用法:

$first_name = 'Joe';
$dbString = '<p>Welcome {{ $first_name }},</p>';

return CustomBladeCompiler::render($dbString, ['first_name' => $first_name]);

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