How to $_GET multiple checkbox values? [duplicate]

Question

<input type="checkbox" name="currency" value="usd"/>
<input type="checkbox" name="currency" value="euro"/>
<input type="checkbox" name="currency" value="cad"/>

Im trying to get currency values through $_GET request, something like /?currency=usd,cad but instead im getting /?currency=usd&currency=cad and then $_GET['currency'] returns only one value.

adding name=currency[] just gets /?currency[]=usd&currency[]=cad

What is the proper way to get these checkbox values in some sort of array?

Answer 1

HTML:

<input type="checkbox" name="currency[]" value="usd"/>
<input type="checkbox" name="currency[]" value="euro"/>
<input type="checkbox" name="currency[]" value="cad"/>

PHP:

<?php
foreach($_GET['currency'] as $currency){
  echo $currency."<br/>";
  //or what ever
}
?>