array_merge help

[petroz]

Hi Guys,

 

Been a while since I've done this and I cant seem to get it right. I am using an array to create a dropdown menu. The first array is all options, and the second array is the selected option.

 

Here is the code I am using to merge the arrays.

//create the dropdown
$possible_pages = $this->admin_model->page_dropdown();
$current_page = $this->admin_model->current_page_dropdown($page_id);
$data['pages_dropdown'] = array_merge($current_page, $possible_pages);

 

The result I am getting seems to be reseting the keys in the array, which will not work as intended. Please point me in the right direction to get this array to look as intended the in the example below.

 

I would like the array to look like...

Array ([8] => VPO's [7] => CPO's [8] => VPO's)

 

Here are the arrays...

Array ( [7] => CPO's [8] => VPO's ) 
Array ( [8] => VPO's )

 

This is the result I am getting now.

Array ( [0] => VPO's [1] => CPO's [2] => VPO's )

 

 

[btherl]

Each index can only appear once in an array, so you'll just have one 7 and one 8 in the result array, even if you merge without reindexing.  I think what you are looking for is the "+" array operator.  It's mentioned at http://php.net/manual/en/function.array-merge.php

[petroz]

Hi btherl,

 

Thanks for the reply. I just tried using the union operator. But its not working. Take a look below

 

The revised code...

//create the dropdown
$possible_pages = $this->admin_model->page_dropdown();
$current_page = $this->admin_model->current_page_dropdown($page_id);
$data['pages_dropdown'] = array_merge($current_page + $possible_pages);

 

I also tried this... and I get the same result as the above code...

$data['pages_dropdown'] = $current_page + $possible_pages;

Result..

Array ( [8] => VPO's [7] => CPO's )

 

Thanks Again for the reply!

[Hypnos]

I would like the array to look like...

Array ([8] => VPO's [7] => CPO's [8] => VPO's)

Creating an array like this is impossible. Keys have to be unique. You have 8 twice.

 

Result..

Array ( [8] => VPO's [7] => CPO's )

That's as close as you will get.

[petroz]

Thanks guys. That option will work fine!