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<?php class test{ function showMess() { echo 'this is a test'; } } $t = test; var_dump($t); $t = new test; var_dump($t,$t->showMess,$t->showMess());
Output for 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
Fatal error: Uncaught Error: Undefined constant "test" in /in/4ETRW:8 Stack trace: #0 {main} thrown in /in/4ETRW on line 8
Process exited with code 255.
Output for 7.2.0 - 7.2.33, 7.3.0 - 7.3.31, 7.4.0 - 7.4.25, 7.4.27 - 7.4.33
Warning: Use of undefined constant test - assumed 'test' (this will throw an Error in a future version of PHP) in /in/4ETRW on line 8 string(4) "test" Notice: Undefined property: test::$showMess in /in/4ETRW on line 11 this is a testobject(test)#1 (0) { } NULL NULL
Output for 7.3.32 - 7.3.33, 7.4.26
Warning: Use of undefined constant test - assumed 'test' (this will throw an Error in a future version of PHP) in /in/4ETRW on line 8 string(4) "test" this is a testobject(test)#1 (0) { } NULL NULL
Output for 5.5.0 - 5.5.35, 5.6.0 - 5.6.28, 7.0.0 - 7.0.20, 7.1.0 - 7.1.25
Notice: Use of undefined constant test - assumed 'test' in /in/4ETRW on line 8 string(4) "test" Notice: Undefined property: test::$showMess in /in/4ETRW on line 11 this is a testobject(test)#1 (0) { } NULL NULL
Output for 5.0.0 - 5.0.5, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17, 5.3.0 - 5.3.29, 5.4.0 - 5.4.45
string(4) "test" this is a testobject(test)#1 (0) { } NULL NULL
Output for 4.3.0 - 4.3.11, 4.4.0 - 4.4.9
string(4) "test" this is a testobject(test)(0) { } NULL NULL

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