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<?php class a { const ABSTRACT_CONST = self::ABSTRACT_CONST; } class b extends a { const ABSTRACT_CONST = 'a'; } class c extends a {} echo b::ABSTRACT_CONST, c::ABSTRACT_CONST;
Output for 8.3.0 - 8.3.4, 8.3.6
a Fatal error: Uncaught Error: Cannot declare self-referencing constant self::ABSTRACT_CONST in /in/N37YP:3 Stack trace: #0 /in/N37YP(8): [constant expression]() #1 {main} thrown in /in/N37YP on line 3
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 a Fatal error: Uncaught Error: Cannot declare self-referencing constant self::ABSTRACT_CONST in /in/N37YP:3 Stack trace: #0 /in/N37YP(8): [constant expression]() #1 {main} thrown in /in/N37YP on line 3
Process exited with code 255.
Output for 8.2.0 - 8.2.18
a Fatal error: Uncaught Error: Cannot declare self-referencing constant self::ABSTRACT_CONST in /in/N37YP:3 Stack trace: #0 {main} thrown in /in/N37YP on line 3
Process exited with code 255.
Output for 8.0.0 - 8.0.30, 8.1.0 - 8.1.28
a Fatal error: Uncaught Error: Cannot declare self-referencing constant self::ABSTRACT_CONST in /in/N37YP:8 Stack trace: #0 {main} thrown in /in/N37YP on line 8
Process exited with code 255.
Output for 7.0.0 - 7.0.33, 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33
a Fatal error: Uncaught Error: Cannot declare self-referencing constant 'self::ABSTRACT_CONST' in /in/N37YP:8 Stack trace: #0 {main} thrown in /in/N37YP on line 8
Process exited with code 255.
Output for 5.6.0 - 5.6.40
a Fatal error: Cannot declare self-referencing constant 'self::ABSTRACT_CONST' in /in/N37YP on line 8
Process exited with code 255.

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