Value of Query string

Question

How can i get the total value from the following URL http://tradephonein.com/checkout-swap/?total=$18.00&broken=No&water=%20No&power=Yes,%20battery%20included&lcd=No&charger=&manual=Owner%20Manual&box=&other=

I have this kind of a string query, you'll see that there is a total=$18.00, my question is, how can I get the value because I want it to subtract in a number.

Answer 1

If those values are in your query then you can use the following

if( get_query_var('total') ) {
    $total_value = floatval( str_replace( '$', '', get_query_var('total') ) );
}

or else

if( isset( $_GET['total'] ) ) {
    $total_value = floatval( str_replace( '$', '', $_GET['total'] ) );
}

Answer 2

I don't know anything about gravity forms. But normally you get that value with php via $_GET / $_POST object / array:

<?php 
isset($total) ? $total : $total = 0; // is total set; if not set it to 0;
$total = substr($_GET['total'], "$"); // grab the value after the dollar sign
$total = strval(htmlentities($total)); // Let's sanitize the values. Don't forget to do this!
?>

Sorry i haven't actually test that yet.