PHP-SOAP扩展未加载

我正在尝试安装Opencats.For,这是必需的,使肥皂。我已经启用肥皂。

soap Soap Client => enabled Soap Server => enabled soap.wsdl_cache => 1 => 1 soap.wsdl_cache_dir => /tmp => /tmp soap.wsdl_cache_enabled => 1 => 1 soap.wsdl_cache_limit => 5 => 5 soap.wsdl_cache_ttl => 86400 => 86400 

但是,虽然安装仍然显示

 PHP SOAP extension (soap) is not loaded. Check your settings in php.ini. CATS Open Source will function without SOAP, but CATS Professional functionality will not be supported. Under certain Linux / BSD distributions, the PHP SOAP extension is a separate package. Ubuntu: Run "apt-get install php-soap" and restart your webserver. Debian: Run "apt-get install php5-soap" and restart your webserver. FreeBSD: Install the php5-soap port, or configure SOAP support in the php-extensions port and restart your webserver. 

我正在使用的Fedora 17操作系统。 Php:PHP 5.4.17

php.ini中

 [soap] ; Enables or disables WSDL caching feature. ; http://php.net/soap.wsdl-cache-enabled soap.wsdl_cache_enabled=1 ; Sets the directory name where SOAP extension will put cache files. ; http://php.net/soap.wsdl-cache-dir soap.wsdl_cache_dir="/tmp" ; (time to live) Sets the number of second while cached file will be used ; instead of original one. ; http://php.net/soap.wsdl-cache-ttl soap.wsdl_cache_ttl=86400 ; Sets the size of the cache limit. (Max. number of WSDL files to cache) soap.wsdl_cache_limit = 5 

一切都是我所要求的。 但是问题仍然没有解决。