php 7.1和SCA_SDO - 在哪里找到包（ubuntu 16.04）？ [关闭]

I need to generate XML on the base XSD file. PHP documetation recommended SCA_SDO. Try install SCA_SDO

 sudo pecl install SCA_SDO

And i'm have this error:

pear/SCA_SDO requires PHP (version >= 5.1.0, version <= 6.0.0), installed version is 7.1.2
No valid packages found

Where can I find the package SCA_SDO for version php 7?

I'm did this with function simplexml_load_string. http://php.net/manual/en/function.simplexml-load-string.php