Online PHP editor | output for tBN04

Output for 8.2.0 - 8.2.18, 8.3.0 - 8.3.6: Fatal error: Uncaught PDOException: could not find driver in /in/tBN04:3 Stack trace: #0 /in/tBN04(3): PDO->__construct('mysql:host=loca...', 'root', Object(SensitiveParameterValue), Array) #1 {main} thrown in /in/tBN04 on line 3
Process exited with code 255.
Output for 7.0.0 - 7.0.33, 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.28: Fatal error: Uncaught PDOException: could not find driver in /in/tBN04:3 Stack trace: #0 /in/tBN04(3): PDO->__construct('mysql:host=loca...', 'root', '', Array) #1 {main} thrown in /in/tBN04 on line 3
Process exited with code 255.
Output for 5.1.3 - 5.1.6, 5.2.0 - 5.2.17, 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.40: Fatal error: Uncaught exception 'PDOException' with message 'could not find driver' in /in/tBN04:5 Stack trace: #0 /in/tBN04(5): PDO->__construct('mysql:host=loca...', 'root', '', Array) #1 {main} thrown in /in/tBN04 on line 5
Process exited with code 255.
Output for 5.1.0 - 5.1.2: Fatal error: Undefined class constant 'ATTR_EMULATE_PREPARES' in /in/tBN04 on line 3
Process exited with code 255.
Output for 5.0.0 - 5.0.5: Fatal error: Class 'PDO' not found in /in/tBN04 on line 3
Process exited with code 255.
Output for 4.4.2 - 4.4.9: Parse error: syntax error, unexpected T_DOUBLE_ARROW, expecting '(' in /in/tBN04 on line 3
Process exited with code 255.
Output for 4.3.0 - 4.3.1, 4.3.5 - 4.3.11, 4.4.0 - 4.4.1: Parse error: parse error, unexpected T_DOUBLE_ARROW, expecting '(' in /in/tBN04 on line 3
Process exited with code 255.
Output for 4.3.2 - 4.3.4: Parse error: parse error, expecting `'('' in /in/tBN04 on line 3
Process exited with code 255.