3v4l.org

run code in 200+ php & hhvm versions
<?php // Besides the methods listed here, this class also has an __invoke method. // This is for consistency with other classes that implement calling magic, // as this method is not used for calling the function. // Source: http://php.net/manual/en/class.closure.php var_dump(\method_exists(\Closure::class, '__invoke'));
based on vNnSK
Output for 5.5.0 - 5.6.40, hhvm-3.10.1 - 3.22.0, 7.0.0 - 7.3.4
bool(false)
Output for 5.4.0 - 5.4.45
Parse error: syntax error, unexpected 'class' (T_CLASS), expecting identifier (T_STRING) or variable (T_VARIABLE) or '{' or '$' in /in/nIte4 on line 8
Process exited with code 255.
Output for 5.3.0 - 5.3.29
Parse error: syntax error, unexpected T_CLASS, expecting T_STRING or T_VARIABLE or '$' in /in/nIte4 on line 8
Process exited with code 255.
Output for 4.4.2 - 4.4.9, 5.1.0 - 5.2.17
Warning: Unexpected character in input: '\' (ASCII=92) state=1 in /in/nIte4 on line 8 Warning: Unexpected character in input: '\' (ASCII=92) state=1 in /in/nIte4 on line 8 Parse error: syntax error, unexpected T_CLASS, expecting T_STRING or T_VARIABLE or '$' in /in/nIte4 on line 8
Process exited with code 255.
Output for 4.3.0 - 4.3.1, 4.3.5 - 4.4.1, 5.0.0 - 5.0.5
Warning: Unexpected character in input: '\' (ASCII=92) state=1 in /in/nIte4 on line 8 Warning: Unexpected character in input: '\' (ASCII=92) state=1 in /in/nIte4 on line 8 Parse error: parse error, unexpected T_CLASS, expecting T_STRING or T_VARIABLE or '$' in /in/nIte4 on line 8
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Warning: Unexpected character in input: '\' (ASCII=92) state=1 in /in/nIte4 on line 8 Warning: Unexpected character in input: '\' (ASCII=92) state=1 in /in/nIte4 on line 8 Parse error: parse error, expecting `T_STRING' or `T_VARIABLE' or `'$'' in /in/nIte4 on line 8
Process exited with code 255.