Radio button in PHP

Question

Hi Friends......

I have four radio button(red,green,blue,yello) and one ok button in a form in PHP. I want, when we select any one radio button i.e. red or someone and click ok button then color of the form will change according to select radio button. Suppose that we select red radio button then ok , color of the form will be red.

So please tell me anyone how to do this ?

Thank,.....

Satyapriya Nayak · Answer

Hi Vineet Try this... change color.php Test function getInputValue() { var radioObj = document.forms[myForm][color]; for (var i=0; i { if (radioObj[i].checked) return radioObj[i].value; } alert(No radio button was selected.) } function change_color() { var a = getInputValue(); if(a==red) { document.body.style.background=a return false; } else if(a==green) { document.body.style.background=a return false; } else if(a==blue) { document.body.style.background=a return false; } else if(a==yellow) { document.body.style.background=a return false; } } Red Green Blue Yellow Thanks If this post helps you mark it as answer

Vineet Kumar Saini · Answer

Thank You very much Nayak Ji.......

Sam Hobbs · Answer

Are you sure PHP has radio buttons? I do not know PHP very well but I doubt that the PHP language has radio buttons. You can use PHP to create radio buttons in HTML but PHP does not have radio buttons. Also PHP does not have forms. You might think I am being picky (overly critical) but the issue is important. If you realize that the radio buttons and the forms are all HTML then you understand better what you need to do. Note that PHP executes in the server and HTML is shown in the client. So if you want your PHP program to do something when a radio button is selected then you must send the event from the client to the server and the server sends something to the client. It is better to use JavaScript in the client to process the radio buttons.