How can PHP developers troubleshoot and resolve errors related to connecting to library catalogs using PHP/YAZ?

To troubleshoot and resolve errors related to connecting to library catalogs using PHP/YAZ, developers should ensure that the YAZ extension is properly installed and configured on their server. They should also check the connection parameters such as host, port, database name, username, and password to ensure they are correct. Additionally, developers can use error handling techniques such as try-catch blocks to catch and log any errors that occur during the connection process.

try {
    $connection = yaz_connect('your_host', 'your_port');
    yaz_database($connection, 'your_database');
    yaz_syntax($connection, 'your_syntax');
    yaz_search($connection, 'your_query');
    
    // Fetch and display search results
    while ($record = yaz_record($connection)) {
        echo $record;
    }
    
    yaz_close($connection);
} catch (Exception $e) {
    echo 'Error connecting to library catalog: ' . $e->getMessage();
}