在数组中分配PHP变量

Question

I'm working on integrating external code. Following is the code:

if(count($_POST))
pay_page(array('key'=>'gtKFFx','txnid'=>'shanil','amount'=>'100');

There are static values. I want to assign php variables to this array:

if(count($_POST))
pay_page(array('key'=>'gtKFFx','txnid'=><?php echo $b; ?>,'amount'=>'10');

How do I achieve that? Can somebody help?

Answer 1

if(count($_POST))
    pay_page(array('key'=>'gtKFFx','txnid'=> $b,'amount'=>'10'));

This should work.