merge arrays to one string

Hello,
I have a few repeating regions with checkbox values that I would like to append as one comma separated string.

Individual groups can be posted using the implode function from checkbox arrays []

But trying to merge these to one string is posing a problem.

Here is my code:

$a1 = ((isset($_POST["1pcCB"]))?implode(", ", $_POST["1pcCB"]):""));
$a2 = ((isset($_POST["desksetCB"]))?implode(", ", $_POST["desksetCB"]):"");
$a3 = ((isset($_POST["trimlineCB"]))?implode(", ", $_POST["trimlineCB"]):"");
$a4 = ((isset($_POST["bedRailCB"]))?implode(", ", $_POST["bedRailCB"]):"");
$a5 = ((isset($_POST["specialtyCB"]))?implode(", ", $_POST["specialtyCB"]):"");
$requestedPhones = array_merge($a1, $a2, $a3, $a4, $a5);

Is this not an array: ((isset($_POST["1pcCB"]))?implode(", ", $_POST["1pcCB"]):"")) ?

I'm looking to post $requestedPhones as the final string to be inserted. The individual elements seem to work, such as ((isset($_POST["1pcCB"]))?implode(", ", $_POST["1pcCB"]):"")) properly inserts a comma separated string to the target DB field.
And the array_merge() function works in testing if I use a test array such as :


$my_array1 = array ( 'a', 'b', 'c' );
$my_array2 = array ( 'd', 'e', 'f' );
// append one array to the other
$my_array = array_merge($my_array1, $my_array2);

// print the resulting array to see if it worked
print_r($my_array);

I believe the problem is here:
((isset($_POST["1pcCB"]))?implode(", ", $_POST["1pcCB"]):""))
and that this is not a pure array or some extra syntax is conflicting with the setting of this value to the new var ($a1)...

Anyone see the problem and can offer the solution?

The implode function is used to convert an array to a string.


if you have a group of checkboxes with the same name ending in "[]". the square brackets crates an array.


Your code using the implode function is converting that array to comma separated string.

No extra functions are needed to convert the form output into an array in this case.


Instead of using:
((isset($_POST["1pcCB"]))?implode(", ", $_POST["1pcCB"]):""));


just use:
((isset($_POST["1pcCB"]))?$_POST["1pcCB"]:""));

Thanks


So since the array already exists I need to array_merge the available arrays:

$a1 =  ((isset($_POST["1pcCB"]))?$_POST["1pcCB"]:"");
$a2 =  ((isset($_POST["desksetCB"]))?$_POST["desksetCB"]:"");
			
$PrerequestedPhones = array_merge($a1, $a2);

Then, implode that value to comma delimit and have ready for the Insert

$requestedPhones = ((isset($_POST["PrerequestedPhones"]))?implode(", ", $_POST["PrerequestedPhones"]):"");

I then set the value to be inserted via DA as "$requestedPhones"

Makes sense, but on test I did not find the values inserted. No errors reported , just no values inserted.

It's not that I need set the value to a hidden field is it? Seems that value should be present as the var: $requestedPhones

Your code here:

$a1 =  ((isset($_POST["1pcCB"]))?$_POST["1pcCB"]:"");
$a2 =  ((isset($_POST["desksetCB"]))?$_POST["desksetCB"]:"");
			
$PrerequestedPhones = array_merge($a1, $a2);

is creating an application variable named $PrerequestedPhones not a POST variable.

In this code:

$requestedPhones = ((isset($_POST["PrerequestedPhones"]))?implode(", ", $_POST["PrerequestedPhones"]):"");

you are referencing a POST variaberl that does not exist. It should be:

$requestedPhones = ((isset($PrerequestedPhones))?implode(", ", $PrerequestedPhones):"");