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<?php var_dump(idn_to_ascii('foo_bar.org', IDNA_USE_STD3_RULES, INTL_IDNA_VARIANT_UTS46, $info)); var_dump($info);
Output for git.master, git.master_jit, rfc.property-hooks
bool(false) array(3) { ["result"]=> string(13) "foo�bar.org" ["isTransitionalDifferent"]=> bool(false) ["errors"]=> int(128) }

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