Can css be written in php?

Can I write css in php?

css can be written in php. In PHP, HTML, CSS and JavaScript codes are treated as strings and then parsed in the browser.

Introduce css styles into PHP scripts. The code example is as follows:

<?php
header("content-type:text/html;charset=utf-8");
echo &#39;<p style="color:red;">Hello!</p>&#39;;
?>

Output:

You can also introduce external CSS files.

<?php
echo  &#39;<link rel=\"stylesheet\" type=\"text/css\" href=\"theme.css\" />&#39;;
?>

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