Php extension not working

Installed the https://github.com/c9s/xarray extension

All as instructed

phpize ./configure make install 

Further added to php.ini

 extension=xarray.so 

Reboot the server, the php -m command issues:

 [PHP Modules] bcmath bz2 calendar Core ctype curl date dom ereg exif fileinfo filter ftp gd gettext gmp hash iconv intl json libxml mbstring mcrypt mhash mysql mysqli openssl pcntl pcre PDO pdo_mysql pdo_sqlite Phar posix readline Reflection session shmop SimpleXML sockets SPL sqlite3 standard sysvmsg sysvsem sysvshm tidy tokenizer wddx xarray <----- Вот она! Якобы все хорошо! xml xmlreader xmlwriter xsl Zend OPcache zip zlib [Zend Modules] Zend OPcache 

Then later, in any .php file, I execute the following code:

 echo print_r(get_loaded_extensions(),1); 

Conclusion:

 Array ( [0] => Core [1] => date [2] => ereg [3] => libxml [4] => openssl [5] => pcre [6] => zlib [7] => filter [8] => hash [9] => pcntl [10] => readline [11] => Reflection [12] => SPL [13] => session [14] => standard [15] => cgi-fcgi [16] => bcmath [17] => bz2 [18] => calendar [19] => ctype [20] => curl [21] => dom [22] => mbstring [23] => fileinfo [24] => ftp [25] => gd [26] => gettext [27] => gmp [28] => iconv [29] => intl [30] => json [31] => exif [32] => mcrypt [33] => mysql [34] => mysqli [35] => PDO [36] => pdo_mysql [37] => pdo_sqlite [38] => Phar [39] => posix [40] => shmop [41] => SimpleXML [42] => sockets [43] => sqlite3 [44] => sysvmsg [45] => sysvsem [46] => sysvshm [47] => tidy [48] => tokenizer [49] => xml [50] => wddx [51] => xmlreader [52] => xmlwriter [53] => xsl [54] => zip [55] => mhash [56] => Zend OPcache ) 

And as you can see xarray is not here! And actually when trying to use any function from this library, it writes that an unknown function. What kind of mystic?