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<?php class MySpl extends SplFileInfo { public function getExtension() { if (method_exists('SplFileInfo', 'getExtension')) { echo 'parent', PHP_EOL; return parent::getExtension(); } return end(explode('.', parent::getPathname())); } } foreach (array('foo.bar', 'baz.tar.gz', '/usr/bin/php', 'foo') as $file) { $spl = new MySpl($file); var_dump($spl->getExtension()); }
Output for git.master, git.master_jit, rfc.property-hooks
Deprecated: Return type of MySpl::getExtension() should either be compatible with SplFileInfo::getExtension(): string, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /in/AOpjf on line 5 parent string(3) "bar" parent string(2) "gz" parent string(0) "" parent string(0) ""

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