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<?php function getAutoDiscoveryHosts($email) { if (false === $lastArobase = strrpos($email, '@')) { throw new \InvalidArgumentException('Input is not a valid email address'); } return substr($email, $lastArobase + 1); } var_dump(getAutoDiscoveryHosts('foo@bar.com'));
Output for git.master, git.master_jit, rfc.property-hooks
string(7) "bar.com"

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