What are the potential drawbacks of using pre-made PHP counter scripts found through Google search?

One potential drawback of using pre-made PHP counter scripts found through Google search is that they may contain vulnerabilities or malicious code that could compromise the security of your website. To mitigate this risk, it is recommended to thoroughly review the code of any pre-made script before implementing it on your website. Additionally, consider using a trusted source or writing your own counter script to ensure its reliability and security.

// Example of a simple counter script implementation
$counter_file = 'counter.txt';

if(file_exists($counter_file)) {
    $count = (int)file_get_contents($counter_file);
    $count++;
} else {
    $count = 1;
}

file_put_contents($counter_file, $count);

echo 'Visitor count: ' . $count;