Looping An Array Problem

[MoFish]

Hi,

 

I have an array:

    $areas = array(
        "London" => "North",
        "London" => "South",
        "London" => "West",
        "Newcastle" => "North"
    );

I'm trying to loop around each one using the following:

foreach ($areas as $region => $city) {

        echo $city . "<br/>";

The results i'm getting is the bottom two. It seems like it wants unique ones.

West
North

I expected it to loop around them all and print north, south, west, north.

 

Can someone advise me how to write out each one? Why would it be skipping two values?

 

Thanks,

 

MoFish

Edited February 28, 2016 by MoFish

[mac_gyver]

array indexes/keys must be unique. it's not skipping. when you define three elements with the same index/key, each new definition replaces the previous one.

 

depending on what you are trying to accomplish, you can make each array element have a region and city - 

$areas = array(
'region'=>"London", 'city' => "North",
'region'=>"London", 'city' => "South",
'region'=>"London", 'city' => "West",
'region'=>"Newcastle", 'city' => "North"
);

or you could make a sub-array under each region - 

$areas = array(
"London" => array("North","South","West"),
"Newcastle" => array("North")
);

[MoFish]

Thank you for your reply. That explains why that was occouring.

 

I have changed my array to your first example - however the foreach seems like it needs tweeking

 

How would i amend this to display the results:

 

London - North

London - South

London - West

Newcastle - North

[Jacques1]

I strongly recommend that you learn how arrays work, because this is fundamental for any programming language, not just PHP.

 

If you still can't get it to work, post your code and explain the problem.