How can PHP variables be used to define styles in a stylesheet within a PHP file?

To define styles in a stylesheet within a PHP file using PHP variables, you can echo out the styles within the `<style>` tags and use PHP variables to dynamically set the styles based on certain conditions or values. This allows for more flexibility and control over the styles applied to elements on the page. 

&lt;?php
$color = &#039;blue&#039;;
$fontSize = &#039;16px&#039;;
?&gt;

&lt;!DOCTYPE html&gt;
&lt;html&gt;
&lt;head&gt;
    &lt;style&gt;
        p {
            color: &lt;?php echo $color; ?&gt;;
            font-size: &lt;?php echo $fontSize; ?&gt;;
        }
    &lt;/style&gt;
&lt;/head&gt;
&lt;body&gt;
    &lt;p&gt;This is a paragraph with dynamically defined styles.&lt;/p&gt;
&lt;/body&gt;
&lt;/html&gt;

Keywords

PHP variables stylesheet define styles PHP file dynamic styling

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