What are common pitfalls to avoid when using SSL in PHP applications?

Common pitfalls to avoid when using SSL in PHP applications include not verifying the SSL certificate of the remote server, not using secure HTTPS connections consistently, and not properly handling SSL errors. To address these issues, always verify the SSL certificate of the remote server, ensure all connections are made over HTTPS, and handle SSL errors gracefully to prevent security vulnerabilities. 

// Verify SSL certificate of remote server
$context = stream_context_create([
    'ssl' => [
        'verify_peer' => true,
        'verify_peer_name' => true,
        'allow_self_signed' => false
    ]
]);

// Make secure HTTPS connection
$httpsUrl = 'https://example.com/api';
$response = file_get_contents($httpsUrl, false, $context);

// Handle SSL errors gracefully
if ($response === false) {
    $error = error_get_last();
    if (strpos($error['message'], 'SSL') !== false) {
        // Handle SSL error
    }
}

Keywords

SSL PHP applications certificate validation insecure ciphers mixed content

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