我使用onderj的PPA从php 5.0升级到php7.0 （在实时服务器上）
一切顺利，但似乎旧的扩展仍然加载？ php-v给出了这些东西：
PHP Warning: PHP Startup: Unable to load dynamic library '/usr/lib/php/20151012/interbase.so' - /usr/lib/php/20151012/interbase.so: cannot open shared object file: No such file or directory in Unknown on line 0
PHP Warning: PHP Startup: Unable to load dynamic library '/usr/lib/php/20151012/ldap.so' - /usr/lib/php/20151012/ldap.so: cannot open shared object file: No such file or directory in Unknown on line 0
PHP Warning: PHP Startup: Unable to load dynamic library '/usr/lib/php/20151012/odbc.so' - /usr/lib/php/20151012/odbc.so: cannot open shared object file: No such file or directory in Unknown on line 0
PHP Warning: PHP Startup: Unable to load dynamic library '/usr/lib/php/20151012/pdo_dblib.so' - /usr/lib/php/20151012/pdo_dblib.so: cannot open shared object file: No such file or directory in Unknown on line 0
PHP Warning: PHP Startup: Unable to load dynamic library '/usr/lib/php/20151012/pdo_firebird.so' - /usr/lib/php/20151012/pdo_firebird.so: cannot open shared object file: No such file or directory in Unknown on line 0
PHP Warning: PHP Startup: Unable to load dynamic library '/usr/lib/php/20151012/pdo_odbc.so' - /usr/lib/php/20151012/pdo_odbc.so: cannot open shared object file: No such file or directory in Unknown on line 0
PHP Warning: PHP Startup: Unable to load dynamic library '/usr/lib/php/20151012/pdo_pgsql.so' - /usr/lib/php/20151012/pdo_pgsql.so: cannot open shared object file: No such file or directory in Unknown on line 0
PHP Warning: PHP Startup: Unable to load dynamic library '/usr/lib/php/20151012/pdo_sqlite.so' - /usr/lib/php/20151012/pdo_sqlite.so: cannot open shared object file: No such file or directory in Unknown on line 0
PHP Warning: PHP Startup: Unable to load dynamic library '/usr/lib/php/20151012/pgsql.so' - /usr/lib/php/20151012/pgsql.so: cannot open shared object file: No such file or directory in Unknown on line 0
PHP Warning: PHP Startup: Unable to load dynamic library '/usr/lib/php/20151012/pspell.so' - /usr/lib/php/20151012/pspell.so: cannot open shared object file: No such file or directory in Unknown on line 0
PHP Warning: PHP Startup: Unable to load dynamic library '/usr/lib/php/20151012/recode.so' - /usr/lib/php/20151012/recode.so: cannot open shared object file: No such file or directory in Unknown on line 0
PHP Warning: PHP Startup: Unable to load dynamic library '/usr/lib/php/20151012/sqlite3.so' - /usr/lib/php/20151012/sqlite3.so: cannot open shared object file: No such file or directory in Unknown on line 0
PHP Warning: PHP Startup: Unable to load dynamic library '/usr/lib/php/20151012/tidy.so' - /usr/lib/php/20151012/tidy.so: cannot open shared object file: No such file or directory in Unknown on line 0
任何一个任何线索如何解决？ （不破坏服务器）