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when i want register to some site like microsoft.
end of page i have to insert the code that is in the picture.
how can i do this on php?
Posted
Updated 5-May-14 4:54am
v3
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Abhishek Pant 5-May-14 11:38am    

The picture you see at the end of the registration page called CAPTCHA[^]. It is there to prevent to fill the form by machine. In fact it is possible that you write some application that decodes the text in the picture, but the chances are against you as the picture was created specially for NOT to been interpreted by software...
 
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v2
Kornfeld has given the meaning of captcha.
If you want to implement this in php, you may explore Securimage[^]
There are other alternatives, just ask Google.
 
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