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<?php trait TraitA { protected function doSomething(): string { return 'FOO'; } } trait TraitB { abstract protected function doSomething(): string; } class ParentClass { use TraitB; use TraitA; } class ChildClass extends ParentClass { public function __construct() { echo $this->doSomething(); } } $class = new ChildClass();
Output for 8.1.0 - 8.1.33, 8.2.0 - 8.2.19, 8.2.21 - 8.2.29, 8.3.0 - 8.3.7, 8.3.9 - 8.3.28, 8.4.1 - 8.4.14, 8.5.0
FOO
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 8.2.20, 8.3.8
Fatal error: Uncaught Error: Call to protected method ParentClass::doSomething() from scope ChildClass in /in/lFFsD:25 Stack trace: #0 /in/lFFsD(29): ChildClass->__construct() #1 {main} thrown in /in/lFFsD on line 25
Process exited with code 255.
preferences:
105.37 ms | 408 KiB | 5 Q