What tools or methods can be used to identify and fix dead links in PHP websites?

Dead links in PHP websites can be identified and fixed using various tools and methods. One common method is to use a link checker tool to scan the website and identify any broken or dead links. Once the dead links are identified, they can be fixed by updating the URLs or redirecting them to the correct pages. 

<?php
// Function to check if a URL is valid
function urlExists($url) {
    $file_headers = @get_headers($url);
    if($file_headers[0] == 'HTTP/1.1 404 Not Found') {
        return false;
    }
    return true;
}

// Example usage
$url = 'https://example.com/invalid-link';
if(!urlExists($url)) {
    // Handle the dead link, such as redirecting or updating the URL
    echo "Dead link found: $url";
}
?>

Keywords

web scraping link checker PHP cURL HTTP status codes broken links

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