What are the potential issues when using HTTP authentication with PHP online?

One potential issue when using HTTP authentication with PHP online is that the credentials are sent in plain text, making them vulnerable to interception by malicious actors. To solve this issue, it is recommended to use HTTPS to encrypt the communication between the client and server. 

// Example of using HTTPS with HTTP authentication in PHP
if (!isset($_SERVER['HTTPS']) || $_SERVER['HTTPS'] !== 'on') {
    header("Location: https://" . $_SERVER['HTTP_HOST'] . $_SERVER['REQUEST_URI']);
    exit();
}

Keywords

HTTP authentication PHP online security authentication errors server configuration

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