Yes. This is the list of all the extensions installed…
Array ( [0] => Core [1] => date [2] => ereg [3] => libxml [4] => openssl [5] => pcre [6] => sqlite3 [7] => zlib [8] => bcmath [9] => bz2 [10] => calendar [11] => ctype [12] => curl [13] => dba [14] => dom [15] => hash [16] => fileinfo [17] => filter [18] => ftp [19] => gd [20] => gettext [21] => gmp [22] => SPL [23] => iconv [24] => session [25] => intl [26] => json [27] => mbstring [28] => mcrypt [29] => mysql [30] => mysqli [31] => PDO [32] => pdo_mysql [33] => pdo_pgsql [34] => pdo_sqlite [35] => pgsql [36] => standard [37] => posix [38] => pspell [39] => Reflection [40] => imap [41] => SimpleXML [42] => soap [43] => sockets [44] => Phar [45] => exif [46] => sysvmsg [47] => sysvsem [48] => sysvshm [49] => tokenizer [50] => wddx [51] => xml [52] => xmlreader [53] => xmlrpc [54] => xmlwriter [55] => xsl [56] => zip [57] => memcache [58] => cgi-fcgi [59] => mhash [60] => ionCube Loader [61] => Zend OPcache )