chris@catch22:~/code/php$ cat extension-info.php
<?php

print_r(get_loaded_extensions());
//print_r(get_extension_funcs("ADOdb"));
?>chris@catch22:~/code/php$ php extension-info.php
PHP Warning:  PHP Startup: Unable to load dynamic library '/usr/lib/php5/20100525/pdo_oci.so' - /usr/lib/php5/20100525/pdo_oci.so: cannot open shared object file: No such file or directory in Unknown on line 0
Array
(
    [0] => Core
    [1] => date
    [2] => ereg
    [3] => libxml
    [4] => openssl
    [5] => pcre
    [6] => zlib
    [7] => bcmath
    [8] => bz2
    [9] => calendar
    [10] => ctype
    [11] => dba
    [12] => dom
    [13] => hash
    [14] => fileinfo
    [15] => filter
    [16] => ftp
    [17] => gettext
    [18] => SPL
    [19] => iconv
    [20] => json
    [21] => mbstring
    [22] => pcntl
    [23] => session
    [24] => standard
    [25] => posix
    [26] => Reflection
    [27] => Phar
    [28] => shmop
    [29] => SimpleXML
    [30] => soap
    [31] => sockets
    [32] => exif
    [33] => sysvmsg
    [34] => sysvsem
    [35] => sysvshm
    [36] => tokenizer
    [37] => wddx
    [38] => xml
    [39] => xmlreader
    [40] => xmlwriter
    [41] => zip
    [42] => PDO
    [43] => curl
    [44] => mysql
    [45] => mysqli
    [46] => pdo_mysql
    [47] => pdo_sqlite
    [48] => sqlite3
    [49] => ADOdb
    [50] => imagick
    [51] => oci8
    [52] => mhash
)
chris@catch22:~/code/php$