How can PHP developers ensure that their code is displayed correctly in all major browsers?

PHP developers can ensure that their code is displayed correctly in all major browsers by using CSS to style their HTML elements consistently across browsers. They can also use browser-specific CSS prefixes and vendor prefixes to handle browser compatibility issues. Additionally, developers can test their code in multiple browsers and use tools like BrowserStack or CrossBrowserTesting to identify and fix any rendering issues. 

<!DOCTYPE html>
<html>
<head>
    <style>
        /* CSS code to style HTML elements */
    </style>
</head>
<body>
    <?php
        // PHP code to generate HTML content
    ?>
</body>
</html>

Keywords

cross-browser compatibility HTML CSS JavaScript browser testing

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