3v4l.org

run code in 300+ PHP versions simultaneously
<?php namespace Foo\Bar { class a { } class b { } function a() { return 'function a'; } function b() { return 'function b'; } const a = 'const a'; const b = 'const b'; } namespace { use Foo\Bar\{a, b, function a, function b, const a, const b}; var_dump(new a()); var_dump(new b()); var_dump(a()); var_dump(b()); var_dump(a); var_dump(b); }
Output for 7.0.0 - 7.0.20, 7.1.0 - 7.1.25, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.27, 8.2.0 - 8.2.17, 8.3.0 - 8.3.4
object(Foo\Bar\a)#1 (0) { } object(Foo\Bar\b)#1 (0) { } string(10) "function a" string(10) "function b" string(7) "const a" string(7) "const b"

preferences:
158.03 ms | 403 KiB | 184 Q