3v4l.org

run code in 300+ PHP versions simultaneously
<?php echo FOO::class; echo FOO::constantName; echo FOO::$username; // It works as echoing Typo\WTF; It shall fail...
based on lDP3h
Output for 8.0.0
FOO Fatal error: Uncaught Error: Class "FOO" not found in /in/RbIhK:3 Stack trace: #0 {main} thrown in /in/RbIhK on line 3
Process exited with code 255.
Output for 7.0.0 - 7.0.33, 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.24, 7.4.0 - 7.4.13
FOO Fatal error: Uncaught Error: Class 'FOO' not found in /in/RbIhK:3 Stack trace: #0 {main} thrown in /in/RbIhK on line 3
Process exited with code 255.
Output for 5.5.0 - 5.5.38, 5.6.0 - 5.6.40
FOO Fatal error: Class 'FOO' not found in /in/RbIhK on line 3
Process exited with code 255.
Output for 5.4.0 - 5.4.45
Parse error: syntax error, unexpected 'class' (T_CLASS), expecting identifier (T_STRING) or variable (T_VARIABLE) or '{' or '$' in /in/RbIhK on line 2
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 T_CLASS, expecting T_STRING or T_VARIABLE or '$' in /in/RbIhK on line 2
Process exited with code 255.
Output for 4.3.0 - 4.3.1, 4.3.5 - 4.3.11, 4.4.0 - 4.4.1, 5.0.0 - 5.0.5
Parse error: parse error, unexpected T_CLASS, expecting T_STRING or T_VARIABLE or '$' in /in/RbIhK on line 2
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error, expecting `T_STRING' or `T_VARIABLE' or `'$'' in /in/RbIhK on line 2
Process exited with code 255.