发送多个复选框选项

Question

I'm creating a used cars website (written in PHP), and I'm stuck on sending advanced search options from form. I have more than 30 of them and I wonder if it's possible, and how, to send them in one variable (for example &options=1,2,3,5,6,10 or some other way..).

Also I've heard that this is possible with "bitwise" but I don't have a clue how to do that. Or if someone have a better idea, please let me know.

Thanks.

Answer 1

You can send them in an array.

<form method="post">
    <input type="checkbox" name="param[]" value="blue" />
    <input type="checkbox" name="param[]" value="red" />
    <input type="checkbox" name="param[]" value="orange" />
    <input type="checkbox" name="param[]" value="green" />
    <input type="checkbox" name="param[]" value="black" />
    <input type="submit" value="Submit" />
</form>

>> $_POST['param']
array('blue', 'orange')

You can even use multidimensional arrays:

<form method="post">
    <input type="checkbox" name="param[color][]" value="blue" />
    <input type="checkbox" name="param[color][]" value="red" />
    <input type="checkbox" name="param[color][]" value="orange" />
    <input type="checkbox" name="param[color][]" value="green" />
    <input type="checkbox" name="param[color][]" value="black" />
    <input type="checkbox" name="param[year][]" value="1999" />
    <input type="checkbox" name="param[year][]" value="2000" />
    <input type="checkbox" name="param[year][]" value="2001" />
    <input type="checkbox" name="param[year][]" value="2002" />
    <input type="checkbox" name="param[year][]" value="2003" />
    <input type="submit" value="Submit" />
</form>

>> $_POST['param']['color']
array('blue', 'green')

>> $_POST['param']['year']
array('2001', '2004')