3v4l.org

run code in 300+ PHP versions simultaneously
<?php use Foo; use const Foo; use function Foo;
Output for 7.0.0 - 7.0.20, 7.1.0 - 7.1.20, 7.2.0 - 7.2.33, 7.3.16 - 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
Warning: The use statement with non-compound name 'Foo' has no effect in /in/aVhrU on line 3 Warning: The use statement with non-compound name 'Foo' has no effect in /in/aVhrU on line 4 Warning: The use statement with non-compound name 'Foo' has no effect in /in/aVhrU on line 5
Output for 5.6.7 - 5.6.28
Warning: The use statement with non-compound name 'Foo' has no effect in /in/aVhrU on line 3 Warning: The use const statement with non-compound name 'Foo' has no effect in /in/aVhrU on line 4 Warning: The use function statement with non-compound name 'Foo' has no effect in /in/aVhrU on line 5
Output for 5.4.0 - 5.4.45, 5.5.24 - 5.5.35
Warning: The use statement with non-compound name 'Foo' has no effect in /in/aVhrU on line 3 Parse error: syntax error, unexpected 'const' (T_CONST), expecting identifier (T_STRING) or \\ (T_NS_SEPARATOR) in /in/aVhrU on line 4
Process exited with code 255.

preferences:
204.82 ms | 402 KiB | 230 Q