What are the best practices for debugging PHP scripts that rely on user agent information?

When debugging PHP scripts that rely on user agent information, it is important to ensure that the user agent information is being properly captured and processed. One common issue is not properly handling variations in user agent strings, which can lead to unexpected behavior or errors in the script. To solve this, it is recommended to use functions like `get_browser()` or `$_SERVER['HTTP_USER_AGENT']` to accurately retrieve and parse user agent information. 

$user_agent = $_SERVER['HTTP_USER_AGENT'];

if (strpos($user_agent, 'Mozilla') !== false) {
    // Perform actions for Mozilla browser
} elseif (strpos($user_agent, 'Chrome') !== false) {
    // Perform actions for Chrome browser
} else {
    // Default actions for other browsers
}

Keywords

User agent debugging PHP scripts error handling browser detection

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