缺乏 mcrypt 扩展。请检查 PHP 配置。(phpmyadmin)

找到php.ini

pz@pz:~$ sudo find / -name php.ini -print
/etc/php5/cli/php.ini
/etc/php5/apache2/php.ini

打开php.ini

pz@pz:~$ sudo gedit /etc/php5/apache2/php.ini 

增长一句话

extension=mcrypt.so

重启apache2

pz@pz:~$ sudo service apache2 restart 

搞定。

缺乏其余扩展也能够这样作，加的话稍微改变一下就好了。

; If you wish to have an extension loaded automatically, use the following
; syntax:
;
;   extension=modulename.extension
;
; For example, on Windows:
;
;   extension=msql.dll
;
; ... or under UNIX:
;
;   extension=msql.so
;
; ... or with a path:
;
;   extension=/path/to/extension/msql.so
;
; If you only provide the name of the extension, PHP will look for it in its
; default extension directory.
;