邮政方法没有条件

Question

I have created a page on which a form posts its value. So I add some lines to get those values like

$parameter = mysqli_real_escape_string($con,$_POST['Parameter']);

But when I open that page without that form it shows Notice that Undefined index parameter in page on line.

So I want to make something like if I post the values then only specific area will work. Otherwise remaining area will work just like if condition.

For ex.

if(post)
{}
else
{}

How can I do this?

Answer 1

First you would need to check if the values are set properly..You can do it with the if condition which would be like

if(isset($_POST) && array_key_exists('name_of_your_submit_input',$_POST)){
// do the things after form processing
}else{
//things you want to do after form breaks.
}