Why is there an t string syntax error? [closed] - php

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Closed 9 years ago.
I dont understand why this is giving me an t string syntax error. It looks to me correct! Can somebody please help me out? I am few weeks into my php learning attempt and just trying to make sense of this jumble. I know this is something incredibly stupid but I cannot figure it out!
<?php
// set up some variables
// the toys
$item1 = "X−ray specs";
$item2 = "Watch with built−in poison gas canister";
$item3 = "Exploding chewing gum";
// the price
$item1_cost = 100; $item2_cost = 250; $item3_cost = 32;
// the amount
$item1_qty = 1; $item2_qty = 2; $item3_qty = 15;
// calculate cost for each item
$item1_total = $item1_cost * $item1_qty;
$item2_total = $item2_cost * $item2_qty;
$item3_total = $item3_cost * $item3_qty;
// calculate grand total
$grand_total = $item1_total + $item2_total + $item3_total;
//special secret agent discount − 10%
$discount = 10;
// which reduces total bill amount
$amount = ($grand_total * 10)/100;
// the bottom line
$net_total = $grand_total − $amount;
?>

Answer 1

Somehow you managed to use "–", an n-dash, instead of "-", a minus sign. Did you copy/paste it from a web article? That might have done it. You might also encounter this sort of error if you have “ or ” instead of ", which happens fairly frequently with copying code from web pages.
Change this
$net_total = $grand_total − $amount;
to this
$net_total = $grand_total - $amount;
or just retype the line.