Online PHP editor | output for cHhrO

Output for 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6: Warning: Undefined variable $file_name in /in/cHhrO on line 3 Deprecated: substr(): Passing null to parameter #1 ($string) of type string is deprecated in /in/cHhrO on line 3 Warning: Undefined variable $file_name in /in/cHhrO on line 3 Deprecated: substr(): Passing null to parameter #1 ($string) of type string is deprecated in /in/cHhrO on line 3 1970/01/01 01:00:00
Output for 8.0.0 - 8.0.12, 8.0.14 - 8.0.30: Warning: Undefined variable $file_name in /in/cHhrO on line 3 Warning: Undefined variable $file_name in /in/cHhrO on line 3 1970/01/01 01:00:00
Output for 8.0.13: Warning: Undefined variable $file_name in /in/cHhrO on line 3 Warning: Undefined variable $file_name in /in/cHhrO on line 3 1970/01/01 12:00:00
Output for 5.1.2 - 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 - 5.6.28, 7.0.0 - 7.0.20, 7.1.0 - 7.1.25, 7.2.0 - 7.2.33, 7.3.0 - 7.3.31, 7.4.0 - 7.4.33: Notice: Undefined variable: file_name in /in/cHhrO on line 3 Notice: Undefined variable: file_name in /in/cHhrO on line 3 1970/01/01 01:00:00
Output for 7.3.32 - 7.3.33: 1970/01/01 12:00:00
Output for 5.1.0 - 5.1.1: Notice: Undefined variable: file_name in /in/cHhrO on line 3 Notice: Undefined variable: file_name in /in/cHhrO on line 3 2014/09/12 10:55:49
Output for 5.0.4 - 5.0.5: Notice: Undefined variable: file_name in /in/cHhrO on line 3 Warning: strtotime(): Called with an empty time parameter. in /in/cHhrO on line 3 Notice: Undefined variable: file_name in /in/cHhrO on line 3 1970/01/01 12:59:59
Output for 5.0.1 - 5.0.3: Notice: Undefined variable: file_name in /in/cHhrO on line 3 Warning: strtotime(): Called with an empty time parameter. in /in/cHhrO on line 3 Notice: Undefined variable: file_name in /in/cHhrO on line 3 1970/01/01 12:59:59
Output for 4.3.2 - 4.3.11, 4.4.0 - 4.4.9, 5.0.0: Notice: Undefined variable: file_name in /in/cHhrO on line 3 Notice: strtotime(): Called with empty time parameter in /in/cHhrO on line 3 Notice: Undefined variable: file_name in /in/cHhrO on line 3 2014/09/12 12:00:00
Output for 4.3.0 - 4.3.1: Notice: Undefined variable: file_name in /in/cHhrO on line 3 Notice: strtotime() [http://www.php.net/function.strtotime]: Called with empty time parameter in /in/cHhrO on line 3 Notice: Undefined variable: file_name in /in/cHhrO on line 3 2014/09/12 12:00:00