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<?php class A {public static function b() {}} call_user_func($c);
Output for 8.0.10 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
Warning: Undefined variable $c in /in/sI8pb on line 5 Fatal error: Uncaught TypeError: call_user_func(): Argument #1 ($callback) must be a valid callback, no array or string given in /in/sI8pb:5 Stack trace: #0 {main} thrown in /in/sI8pb on line 5
Process exited with code 255.
Output for 8.0.0 - 8.0.9
Warning: Undefined variable $c in /in/sI8pb on line 5 Fatal error: Uncaught TypeError: call_user_func(): Argument #1 ($function) must be a valid callback, no array or string given in /in/sI8pb:5 Stack trace: #0 {main} thrown in /in/sI8pb on line 5
Process exited with code 255.
Output for 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.40, 7.0.0 - 7.0.33, 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.31, 7.4.0 - 7.4.25, 7.4.27 - 7.4.33
Notice: Undefined variable: c in /in/sI8pb on line 5 Warning: call_user_func() expects parameter 1 to be a valid callback, no array or string given in /in/sI8pb on line 5
Output for 7.3.32 - 7.3.33, 7.4.26
Warning: call_user_func() expects parameter 1 to be a valid callback, no array or string given in /in/sI8pb on line 5
Output for 5.2.3 - 5.2.17
Warning: call_user_func(): First argument is expected to be a valid callback in /in/sI8pb on line 5
Output for 5.0.0 - 5.0.5, 5.1.0 - 5.1.6, 5.2.0 - 5.2.2
<br /> <b>Warning</b>: call_user_func() [<a href='function.call-user-func'>function.call-user-func</a>]: First argument is expected to be a valid callback in <b>/in/sI8pb</b> on line <b>5</b><br />
Output for 4.4.2 - 4.4.9
<br /> <b>Parse error</b>: syntax error, unexpected T_STRING, expecting T_OLD_FUNCTION or T_FUNCTION or T_VAR or '}' in <b>/in/sI8pb</b> on line <b>3</b><br />
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
<br /> <b>Parse error</b>: parse error, unexpected T_STRING, expecting T_OLD_FUNCTION or T_FUNCTION or T_VAR or '}' in <b>/in/sI8pb</b> on line <b>3</b><br />
Process exited with code 255.
Output for 4.3.2 - 4.3.4
<br /> <b>Parse error</b>: parse error, expecting `T_OLD_FUNCTION' or `T_FUNCTION' or `T_VAR' or `'}'' in <b>/in/sI8pb</b> on line <b>3</b><br />
Process exited with code 255.

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