Adding to Arrays

[ackerley1]

<Using PHP>
I am trying to create an array that adds different variables to it if they are selected on a form via checkboxes.

IE:
FORM
[] option1 [] option2 [] option3

suppose that option1 and option 3 are checked

I have this at the start of my form processing page:
if (isset($option1))
{
$option1 = OP_ONE;
$option1_SLCT = OP_ONE;
$option = array ($option1);
}
if (isset($option2))
{
$option2 = OP_TWO;
$option2_SLCT = OP_TWO;
$option = array ($option2);
}
if (isset($option3))
{
$option3 = OP_THREE;
$option3_SLCT = OP_THREE;
$option = array ($option3);
}

Now in the above, this will set the array only to the last one select. In this case option3 is the only value in the array. How do I add multiple variables to the $option array in the above set up?

I have tried
$option .= $option2
and
$option .+ $option2

I need the variables as stand alone variables (the first two lines of the if statement) in other parts of the processing as well, so I cannot just set up the form to put them all in a variable using name="option[]" value="option1"> etc.

Not sure what else to try.

Any ideas or suggestions?

Thanks

Rob

[Easywebdev]

to add to an array or combine arrays.

$option = array();
$option += $option1;
$option += $option2;
$option += $option3;

Your code should read
$option = array();
if (isset($option1))
{
$option1 = OP_ONE;
$option1_SLCT = OP_ONE;
$option += $option1;
}
if (isset($option2))
{
$option2 = OP_TWO;
$option2_SLCT = OP_TWO;
$option += $option2;
}
if (isset($option3))
{
$option3 = OP_THREE;
$option3_SLCT = OP_THREE;
$option += $option3;
}

Now in the above, this will set the array only to the last one select. In this case option3 is the only value in the array.

This is because you are not adding to the array rather creating a new $option array containing $option3.

HTH

[ackerley1]

I have tried this, but it gives me this error:

Fatal error: Unsupported operand types - Line 7

The option 1 += line.

Would this have anything to do with it being a string and not numbers?

Any other suggestions?

Thanks

Rob