How can I restrict adult content on an iPhone within safari? EX: blocking porn from the google search engine

Open the following link in Safari on the device. It's Google's Preference page. Set the SafeSearch Fiters to Strict. That's as close as it gets on these devices

http://www.google.com/preferences?hl=en

Apple giving option for block selected website url:

Setting > General > Restrictions > Website > Add website url (Specific Website only)

Or

Choose "Limit adult content" this option filter all the immature word coming from search engine result. (Google, Yahoo, Bing)

Get brief idea at here: Block website in iPhone safari.

Thankyou

There is no way to do this in Safari.

Check out McGruff SafeGuard child-safe browser - its a free browser that blocks ****, and search engines and only returns safe sites. Visit GoMcGruff.com/browser for more info.

Another option is to disable Safari in Restrictions and use the K9 browser... http://appshopper.com/utilities/k9-web-protection-browser