所有PHP页面都显示为完全空白

我编程了一个网站，不需要了解更多细节，但它可以工作，不需要任何DB或类似的东西。但在我的新Ubuntu 10.04.4 LTS服务器上，所有的PHP页面都显示为空白。我已经用以下命令安装了Apache2、PHP5和一些我不知道它是用来做什么的东西：

sudo apt-get install apache2
sudo apt-get install php5
sudo apt-get install libapache2-mod-php5
sudo /etc/init.d/apache2 restart

我试着卸载并重新安装了所有这些组件，但运气不好。没有一个PHP页面显示在我的浏览器中，它们显示为空白，并且有一个空白的源代码，而我所有的纯.html页面都运行良好。

有什么办法让它发挥作用吗？我很乐意发布更多信息，但我不知道该从哪里得到。

错误日志：

PHP Deprecated:  Comments starting with '#' are deprecated in /etc/php5/apache2/conf.d/mcrypt.ini on line 1 in Unknown on line 0
PHP Warning:  PHP Startup: Unable to load dynamic library '/usr/lib/php5/20090626/curl.so' - /usr/lib/php5/20090626/curl.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/php5/20090626/gd.so' - /usr/lib/php5/20090626/gd.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/php5/20090626/mcrypt.so' - /usr/lib/php5/20090626/mcrypt.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/php5/20090626/mysql.so' - /usr/lib/php5/20090626/mysql.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/php5/20090626/mysqli.so' - /usr/lib/php5/20090626/mysqli.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/php5/20090626/pdo_mysql.so' - /usr/lib/php5/20090626/pdo_mysql.so: cannot open shared object file: No such file or directory in Unknown on line 0
[Mon Jul 23 00:36:05 2012] [notice] Apache/2.2.14 (Ubuntu) PHP/5.3.2-1ubuntu4.15 with Suhosin-Patch configured -- resuming normal operations
[Mon Jul 23 00:36:16 2012] [error] [client 217.227.25.35] PHP Parse error:  syntax error, unexpected ')' in /var/www/vtest5532/Header.php on line 19
[Mon Jul 23 00:36:17 2012] [error] [client 217.227.25.35] PHP Parse error:  syntax error, unexpected ')' in /var/www/vtest5532/Header.php on line 19
[Mon Jul 23 00:38:09 2012] [notice] caught SIGTERM, shutting down
PHP Deprecated:  Comments starting with '#' are deprecated in /etc/php5/apache2/conf.d/mcrypt.ini on line 1 in Unknown on line 0
PHP Warning:  PHP Startup: Unable to load dynamic library '/usr/lib/php5/20090626/curl.so' - /usr/lib/php5/20090626/curl.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/php5/20090626/gd.so' - /usr/lib/php5/20090626/gd.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/php5/20090626/mcrypt.so' - /usr/lib/php5/20090626/mcrypt.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/php5/20090626/mysql.so' - /usr/lib/php5/20090626/mysql.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/php5/20090626/mysqli.so' - /usr/lib/php5/20090626/mysqli.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/php5/20090626/pdo_mysql.so' - /usr/lib/php5/20090626/pdo_mysql.so: cannot open shared object file: No such file or directory in Unknown on line 0
[Mon Jul 23 00:38:10 2012] [notice] Apache/2.2.14 (Ubuntu) PHP/5.3.2-1ubuntu4.15 with Suhosin-Patch configured -- resuming normal operations
[Mon Jul 23 00:38:59 2012] [error] [client 180.76.5.62] File does not exist: /var/www/Forum
[Mon Jul 23 01:10:36 2012] [error] [client 66.249.68.165] File does not exist: /var/www/Forum
[Mon Jul 23 01:10:36 2012] [error] [client 66.249.68.165] File does not exist: /var/www/Forum