Intentando conectar...
DSN 1: firebird:dbname=firebird:/opt/firebird/data/ACADEMIAS_DB1.FDB;charset=UTF8
✓ Conexión exitosa con DSN 1

DSN 2: firebird:dbname=firebird/3050:/opt/firebird/data/ACADEMIAS_DB1.FDB;charset=UTF8
✓ Conexión exitosa con DSN 2

DSN 3: firebird:host=firebird;port=3050;dbname=/opt/firebird/data/ACADEMIAS_DB1.FDB;charset=UTF8
✗ Error con DSN 3: SQLSTATE[HY000] [335544721] Unable to complete network request to host "localhost".

Ejecutando consulta...
<br />
<b>Fatal error</b>:  Uncaught PDOException: SQLSTATE[HY000]: General error: -204 Dynamic SQL Error SQL error code = -204 Table unknown CUENTAS At line 1, column 23  in /var/www/html/conexion_test.php:61
Stack trace:
#0 /var/www/html/conexion_test.php(61): PDO-&gt;query('SELECT FIRST 5 ...')
#1 {main}
  thrown in <b>/var/www/html/conexion_test.php</b> on line <b>61</b><br />