What are common pitfalls when developing a PHP project that may lead to compatibility issues with certain browsers?

Common pitfalls when developing a PHP project that may lead to compatibility issues with certain browsers include using outdated HTML elements or attributes, not properly handling browser-specific CSS properties, and relying too heavily on JavaScript without considering browser compatibility. To solve these issues, it's important to keep HTML and CSS code up to date with current standards, use CSS vendor prefixes for browser-specific properties, and test JavaScript functionality across different browsers to ensure compatibility. 

<!DOCTYPE html>
<html>
<head>
  <title>Browser Compatibility Fix</title>
  <style>
    .box {
      -webkit-border-radius: 5px; /* Safari/Chrome */
      -moz-border-radius: 5px; /* Firefox */
      border-radius: 5px; /* Standard */
    }
  </style>
</head>
<body>
  <div class="box">
    This box will have rounded corners in Safari, Chrome, and Firefox.
  </div>
</body>
</html>

Keywords

Cross-browser compatibility PHP version JavaScript errors CSS issues Browser-specific bugs

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