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<?php abstract class C { const NAME = ''; const 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 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, 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
string(4) " FOO" string(4) " FOO" string(4) " FOO"
Output for 5.6.8 - 5.6.28
string(4) " FOO" string(5) "D FOO" string(5) "E FOO"
Output for 5.4.7 - 5.4.45, 5.5.24 - 5.5.35
Parse error: syntax error, unexpected '.', expecting ',' or ';' in /in/FNRsm on line 5
Process exited with code 255.
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208.97 ms | 402 KiB | 251 Q