I have a form in which there are 150 fields and I want to send only that key & value in an email which I have filled in the form on the time of submitting, not all value.

Currently On "$\_POST" it is showing all key and value but I want only that value which I have filled in the input text.

EDIT

On submit form and print $\_POST i have its print like this 

```
[a] => 11 
[b] => 11 
[c] => 11 
[d] => 11 
[d] => 
[e] => 
[f] => 
[d] => 

```

But i want that key and value both which have data