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Q:

Smarty : evaluate a template stored in a PHP variable

Hey everyone,

I hope you're all doing well. I have a question regarding Smarty and evaluating templates stored in a PHP variable. I've been exploring Smarty for my project and I'm trying to figure out if it's possible to evaluate a template that is stored in a PHP variable.

I have a situation where I need to dynamically generate templates based on some user input. Instead of creating separate template files for each user input, I thought it would be more efficient to store the templates in PHP variables and then evaluate them when needed.

I've done some research and found that Smarty has a `{eval}` function, but it seems to only work with templates stored in separate files. I couldn't find any examples or documentation on how to evaluate a template stored in a variable.

So, my question is: Is it possible to evaluate a template stored in a PHP variable using Smarty? If so, could someone please provide an example or point me in the right direction?

Thank you in advance for your help and advice. I really appreciate it!

Best regards,
[Your Name]

All Replies

christiansen.christa

Hey there,

I can definitely help shed some light on evaluating a template stored in a PHP variable using Smarty. I faced a similar situation a while back and managed to solve it with the following approach:

To begin, you would need to set up Smarty by including the necessary files and initializing an instance of it, just like User 1 mentioned:

php
require_once('path/to/Smarty/libs/Smarty.class.php');

$smarty = new Smarty();


Once you have that set up, you can assign your template string to a variable and use the `createTemplate` method to create a template object. Here's an example:

php
$templateString = '<p>Welcome, {$name}! Your account balance is: {$balance}</p>'; // Replace with your template

$template = $smarty->createTemplate('string:' . $templateString);

$template->assign('name', 'John Doe'); // Assign any necessary variables
$template->assign('balance', '$1000');

$evaluatedTemplate = $template->fetch();

echo $evaluatedTemplate;


In this example, you define your template string in the `$templateString` variable. Replace it with your own template content. Then, using the `createTemplate` method, you can create a template object from the string. Next, assign any variables using the `assign` method.

Finally, you can fetch the evaluated template using the `fetch` method without any arguments, as seen above. The evaluated template will be stored in the `$evaluatedTemplate` variable, and you can display it as desired.

Feel free to give this approach a try and let me know if you have any further questions. Good luck with your project!

Best regards,
User 2

goldner.deja

Hey [Your Name],

Yes, it is indeed possible to evaluate a template stored in a PHP variable using Smarty. I've come across a similar situation in the past, and here's how I approached it:

Firstly, you'll need to initialize an instance of Smarty. Assuming you have Smarty properly installed, you can create an object like this:

php
require_once('path/to/Smarty/libs/Smarty.class.php');

$smarty = new Smarty();


Next, you can assign your template string to a variable and pass it to Smarty for evaluation using the `fetch` method. Here's an example:

php
$templateString = '<h1>Hello, {$name}!</h1>'; // Replace with your own template

$smarty->assign('name', 'John Doe'); // Assign any necessary variables

evaluatedTemplate = $smarty->fetch('eval: ' . $templateString);

echo $evaluatedTemplate;


Make sure to replace the contents of `$templateString` with your actual template code. Any assigned variables can be accessed using the Smarty syntax, like `{$variable_name}`.

I hope this helps you achieve what you're looking for. Let me know if you have any further questions!

Best regards,
User 1

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