3v4l.org

run code in 300+ PHP versions simultaneously
<?php function get() { return SOME_CONST; } define('sOmE_CoNsT', 1, true); echo get(); // Prints 1 define('SOME_CONST', 2); echo get(); // Prints 2
Output for 8.0.0 - 8.0.30, 8.1.0 - 8.1.30, 8.2.0 - 8.2.25, 8.3.0 - 8.3.14, 8.4.1
Warning: define(): Argument #3 ($case_insensitive) is ignored since declaration of case-insensitive constants is no longer supported in /in/L6nCp on line 5 Fatal error: Uncaught Error: Undefined constant "SOME_CONST" in /in/L6nCp:3 Stack trace: #0 /in/L6nCp(6): get() #1 {main} thrown in /in/L6nCp on line 3
Process exited with code 255.
Output for 7.3.0 - 7.3.31, 7.4.0 - 7.4.33
Deprecated: define(): Declaration of case-insensitive constants is deprecated in /in/L6nCp on line 5 Deprecated: Case-insensitive constants are deprecated. The correct casing for this constant is "sOmE_CoNsT" in /in/L6nCp on line 3 12
Output for 4.3.0 - 4.3.11, 4.4.0 - 4.4.9, 5.0.0 - 5.0.5, 5.1.1 - 5.1.6, 5.2.0 - 5.2.17, 5.3.0 - 5.3.29, 7.3.32 - 7.3.33
12
Output for 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.40, 7.0.0 - 7.0.33, 7.1.0 - 7.1.33, 7.2.0 - 7.2.33
11
Output for 5.1.0
Fatal error: fatal flex scanner internal error--end of buffer missed in /in/L6nCp on line 9
Process exited with code 255.
preferences:
81.58 ms | 411 KiB | 5 Q