Online PHP editor | output for Nt2SQ

Output for 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, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6: Fatal error: Uncaught ArgumentCountError: Too few arguments to function checkVal(), 1 passed in /in/Nt2SQ on line 10 and exactly 2 expected in /in/Nt2SQ:5 Stack trace: #0 /in/Nt2SQ(10): checkVal('title') #1 {main} thrown in /in/Nt2SQ on line 5
Process exited with code 255.
Output for 7.0.0 - 7.0.33: Warning: Missing argument 2 for checkVal(), called in /in/Nt2SQ on line 10 and defined in /in/Nt2SQ on line 5 Notice: Use of undefined constant show_data - assumed 'show_data' in /in/Nt2SQ on line 6 Warning: Missing argument 2 for checkVal(), called in /in/Nt2SQ on line 11 and defined in /in/Nt2SQ on line 5 Notice: Use of undefined constant show_data - assumed 'show_data' in /in/Nt2SQ on line 6 array(2) { ["title"]=> string(0) "" ["thetvdb_id"]=> string(0) "" }
Output for 5.6.0 - 5.6.40: Warning: Missing argument 2 for checkVal(), called in /in/Nt2SQ on line 10 and defined in /in/Nt2SQ on line 5 Notice: Use of undefined constant show_data - assumed 'show_data' in /in/Nt2SQ on line 6 Warning: Illegal string offset 'title' in /in/Nt2SQ on line 6 Warning: Missing argument 2 for checkVal(), called in /in/Nt2SQ on line 11 and defined in /in/Nt2SQ on line 5 Notice: Use of undefined constant show_data - assumed 'show_data' in /in/Nt2SQ on line 6 Warning: Illegal string offset 'tvdbid' in /in/Nt2SQ on line 6 array(2) { ["title"]=> string(5) "title" ["thetvdb_id"]=> string(6) "tvdbid" }
Output for 5.5.0 - 5.5.38: Parse error: syntax error, unexpected '[' in /in/Nt2SQ on line 6
Process exited with code 255.
Output for 5.4.0 - 5.4.45: Parse error: syntax error, unexpected '[', expecting :: (T_PAAMAYIM_NEKUDOTAYIM) in /in/Nt2SQ on line 6
Process exited with code 255.
Output for 4.4.2 - 4.4.9, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17, 5.3.0 - 5.3.29: Parse error: syntax error, unexpected '[' in /in/Nt2SQ 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, 5.0.0 - 5.0.5: Parse error: parse error, unexpected '[' in /in/Nt2SQ on line 3
Process exited with code 255.
Output for 4.3.2 - 4.3.4: Parse error: parse error in /in/Nt2SQ on line 3
Process exited with code 255.