How can PHP developers ensure that their websites dynamically adjust to different screen resolutions?

PHP developers can ensure that their websites dynamically adjust to different screen resolutions by using CSS media queries to create responsive designs. By setting specific breakpoints in the CSS code, developers can define how the layout of the website should change based on the screen size. This allows the website to adapt to various devices and screen resolutions seamlessly.

<?php
// Example of CSS media queries in PHP
echo "<style>";
echo "@media only screen and (max-width: 600px) {";
echo "  /* CSS styles for screens up to 600px wide */";
echo "}";
echo "@media only screen and (min-width: 601px) and (max-width: 900px) {";
echo "  /* CSS styles for screens between 601px and 900px wide */";
echo "}";
echo "@media only screen and (min-width: 901px) {";
echo "  /* CSS styles for screens wider than 900px */";
echo "}";
echo "</style>";
?>