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<?php // PHP 7.3.x $result=idn_to_ascii('.pm--domain.com'); var_dump(intl_get_error_code()); // 66567 var_dump(intl_get_error_message()); // idn_to_ascii: cannot convert to ASCII: U_IDNA_ZERO_LENGTH_LABEL_ERROR // PHP 7.4.x $result=idn_to_ascii('.pm--domain.com.'); var_dump(intl_get_error_code()); // 0 var_dump(intl_get_error_message()); // U_ZERO_ERROR
Output for git.master, git.master_jit, rfc.property-hooks
int(0) string(12) "U_ZERO_ERROR" int(0) string(12) "U_ZERO_ERROR"

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