What are common issues with SSL installation in PHP websites?

One common issue with SSL installation in PHP websites is mixed content errors, where some resources are loaded over HTTP instead of HTTPS, causing browsers to display security warnings. To solve this, ensure all resource URLs are using HTTPS or use protocol-relative URLs. Another issue is improper SSL certificate configuration, which can be resolved by ensuring the certificate is properly installed and configured on the server. 

// Force HTTPS redirection in PHP
if ($_SERVER['HTTPS'] != 'on') {
    header('Location: https://' . $_SERVER['HTTP_HOST'] . $_SERVER['REQUEST_URI']);
    exit();
}

Keywords

SSL installation PHP websites certificate encryption

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