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<?php abstract class C { const NAME = ''; static $FOO = self::NAME . ' FOO'; } class D extends C { const NAME = 'D'; } class E extends C { const NAME = 'E'; } var_dump(C::FOO); var_dump(D::FOO); var_dump(E::FOO);
Output for 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.4, 8.3.6
Fatal error: Uncaught Error: Undefined constant C::FOO in /in/MBN3P:16 Stack trace: #0 {main} thrown in /in/MBN3P on line 16
Process exited with code 255.
Output for 8.3.5
Warning: PHP Startup: Unable to load dynamic library 'sodium.so' (tried: /usr/lib/php/8.3.5/modules/sodium.so (libsodium.so.23: cannot open shared object file: No such file or directory), /usr/lib/php/8.3.5/modules/sodium.so.so (/usr/lib/php/8.3.5/modules/sodium.so.so: cannot open shared object file: No such file or directory)) in Unknown on line 0 Fatal error: Uncaught Error: Undefined constant C::FOO in /in/MBN3P:16 Stack trace: #0 {main} thrown in /in/MBN3P on line 16
Process exited with code 255.
Output for 7.0.0 - 7.0.20, 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33
Fatal error: Uncaught Error: Undefined class constant 'FOO' in /in/MBN3P:16 Stack trace: #0 {main} thrown in /in/MBN3P on line 16
Process exited with code 255.
Output for 5.6.7 - 5.6.28
Fatal error: Undefined class constant 'FOO' in /in/MBN3P on line 16
Process exited with code 255.
Output for 5.4.2 - 5.4.45, 5.5.24 - 5.5.35
Parse error: syntax error, unexpected '.', expecting ',' or ';' in /in/MBN3P on line 5
Process exited with code 255.

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