Right Way For Pass Variable Php To Css In Wordpress

i need to passing variable from php to css for customize style from custom theme option. The only way i have find is create file.css.php and working good. But my question is: This

Solution 1:

Indirect solution:

It sounds like you want to include different CSS behavior based on user selection. Let's say that user selection is stored in a variable $foo. Just include it in an element's class like this

<?php 
$foo = 'option-1'; ?>
<div class="<?php echo $foo; ?>"></div>

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There are also two direct solutions to your issue:

1. Use inline CSS or CSS in your file's page head:

<style>
  div.button { color:<?php echo $bar ?>; }
</style>

2. Use a PHP file as CSS. This would look like:

<link rel="stylesheet" type="text/css" href="/style.php">

Then you can use PHP variables right inside your CSS file. Just make sure you change the content-type back to CSS at the beginning of the file like this:

<?php header("Content-type: text/css; charset: UTF-8"); ?>

This method is a little bit unconventional, but it'll work without any speed or SEO drawbacks.