Online PHP editor | output for jvTbB

Output for 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6: string(5) "UTF-8" int(1) int(1) Fatal error: Uncaught ValueError: mb_strlen(): Argument #2 ($encoding) must be a valid encoding, "" given in /in/jvTbB:6 Stack trace: #0 /in/jvTbB(6): mb_strlen('\xC3\xA9', '') #1 {main} thrown in /in/jvTbB on line 6
Process exited with code 255.
Output for 5.6.0 - 5.6.30, 7.0.0 - 7.0.20, 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33: string(5) "UTF-8" int(1) Warning: mb_strlen(): Unknown encoding "" in /in/jvTbB on line 5 bool(false) Warning: mb_strlen(): Unknown encoding "" in /in/jvTbB on line 6 bool(false) Warning: mb_strlen(): Unknown encoding "0" in /in/jvTbB on line 7 bool(false) int(1)
Output for 4.3.3 - 4.3.11, 4.4.0 - 4.4.9, 5.0.0 - 5.0.5, 5.1.0 - 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: string(10) "ISO-8859-1" int(2) Warning: mb_strlen(): Unknown encoding "" in /in/jvTbB on line 5 bool(false) Warning: mb_strlen(): Unknown encoding "" in /in/jvTbB on line 6 bool(false) Warning: mb_strlen(): Unknown encoding "0" in /in/jvTbB on line 7 bool(false) int(1)
Output for 4.3.2: string(4) "pass" int(2) Warning: mb_strlen(): Unknown encoding "" in /in/jvTbB on line 5 bool(false) Warning: mb_strlen(): Unknown encoding "" in /in/jvTbB on line 6 bool(false) Warning: mb_strlen(): Unknown encoding "0" in /in/jvTbB on line 7 bool(false) int(1)
Output for 4.3.0 - 4.3.1: string(4) "pass" int(2) Warning: mb_strlen() [http://www.php.net/function.mb-strlen]: Unknown encoding "" in /in/jvTbB on line 5 bool(false) Warning: mb_strlen() [http://www.php.net/function.mb-strlen]: Unknown encoding "" in /in/jvTbB on line 6 bool(false) Warning: mb_strlen() [http://www.php.net/function.mb-strlen]: Unknown encoding "0" in /in/jvTbB on line 7 bool(false) int(1)