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<?php abstract class F { const id = __CLASS__; public static function start() { static::run(new static); } protected static function run(F $f) { echo __CLASS__, PHP_EOL; $instance->dynamicRun(); } protected function dynamicRun() { echo self::id, PHP_EOL, get_class($this); } } class S extends F { const id = __CLASS__; protected static function run(F $f) { echo __CLASS__, PHP_EOL; parent::run($f); } } S::start();
Output for git.master, git.master_jit, rfc.property-hooks
S F Warning: Undefined variable $instance in /in/hpg72 on line 11 Fatal error: Uncaught Error: Call to a member function dynamicRun() on null in /in/hpg72:11 Stack trace: #0 /in/hpg72(22): F::run(Object(S)) #1 /in/hpg72(7): S::run(Object(S)) #2 /in/hpg72(26): F::start() #3 {main} thrown in /in/hpg72 on line 11
Process exited with code 255.

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