function.php
<a href = "details.php?pro_id='.$pro_id.'"><button type="button" class="btn btn-primary">View Detail</button> </a>
===========================================
details.php
if(isset($_GET(['pro_id'])){
$product_id = $_GET['pro_id'];
$get_pro = "select * from products where product_id='$product_id'";
$run_pro = mysqli_query($con, $get_pro);
Its not working it show the following error:
Fatal error: Cannot use isset() on the result of a function call (you can use "null !== func()" instead) in C:\\xampp\\htdocs\\Raj_Cassette\\details.php on line 52
$_GET is not a function. It is an array so
Not
$_GET(['pro_id'])
But
$_GET['pro_id']
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