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<?php // lint >= 8.1 namespace MissingMagicSerializationMethods; use Serializable; enum myEnum implements Serializable { case X; case Y; public function serialize() { } public function unserialize($data) { } }
Output for 8.5.0 - 8.5.1
Deprecated: MissingMagicSerializationMethods\myEnum implements the Serializable interface, which is deprecated. Implement __serialize() and __unserialize() instead (or in addition, if support for old PHP versions is necessary) in /in/tKdD6 on line 8 Fatal error: Enum MissingMagicSerializationMethods\myEnum cannot implement the Serializable interface in /in/tKdD6 on line 8 Stack trace: #0 {main}
Process exited with code 255.
Output for 8.4.15
/bin/php-8.4.15: /usr/lib/libm.so.6: version `GLIBC_2.38' not found (required by /bin/php-8.4.15) /bin/php-8.4.15: /usr/lib/libm.so.6: version `GLIBC_2.35' not found (required by /bin/php-8.4.15) /bin/php-8.4.15: /usr/lib/libc.so.6: version `GLIBC_2.34' not found (required by /bin/php-8.4.15) /bin/php-8.4.15: /usr/lib/libc.so.6: version `GLIBC_2.38' not found (required by /bin/php-8.4.15)
Process exited with code 1.
Output for 8.2.22 - 8.2.29, 8.3.5 - 8.3.28, 8.4.1 - 8.4.14
Deprecated: MissingMagicSerializationMethods\myEnum implements the Serializable interface, which is deprecated. Implement __serialize() and __unserialize() instead (or in addition, if support for old PHP versions is necessary) in /in/tKdD6 on line 8 Fatal error: Enum MissingMagicSerializationMethods\myEnum cannot implement the Serializable interface in /in/tKdD6 on line 8
Process exited with code 255.
Output for 8.1.0 - 8.1.33
Deprecated: MissingMagicSerializationMethods\myEnum implements the Serializable interface, which is deprecated. Implement __serialize() and __unserialize() instead (or in addition, if support for old PHP versions is necessary) in /in/tKdD6 on line 8 Fatal error: Enums may not implement the Serializable interface in /in/tKdD6 on line 8
Process exited with code 255.
Output for 8.0.1 - 8.0.23
Parse error: syntax error, unexpected identifier "myEnum" in /in/tKdD6 on line 8
Process exited with code 255.
Output for 7.4.0 - 7.4.30
Parse error: syntax error, unexpected 'myEnum' (T_STRING) in /in/tKdD6 on line 8
Process exited with code 255.

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