What are some potential pitfalls when comparing the current URL with a stored URL in PHP?

One potential pitfall when comparing the current URL with a stored URL in PHP is that the URLs may have different query parameters or casing, leading to false negatives in the comparison. To avoid this, you can normalize the URLs by removing query parameters and converting them to lowercase before comparison. 

// Get the current URL
$currentUrl = strtolower(parse_url($_SERVER['REQUEST_URI'], PHP_URL_PATH));

// Get the stored URL
$storedUrl = strtolower('/stored/url');

// Compare the normalized URLs
if ($currentUrl === $storedUrl) {
    // URLs match
    echo 'URLs match';
} else {
    // URLs do not match
    echo 'URLs do not match';
}

Keywords

current URL stored URL comparison PHP string manipulation

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