Multidimensional array: see if 1st key is available

[Mattias.Campe]

Hi,

I've got an multidimensional array
$ret = $country_code[$countryCode][$langCode];

Now I want to see if $countryCode is even in that array, because if it's
not, it doesn't make many sense to look further for $langCode.

Eg.

$country_code = array('BE' =>
array ('en' => 'Belgium',
'nl' => 'België'),
'NL' =>
array ('en' => 'Netherlands',
'nl' => 'Nederland'),
);

Searching for 'BE' would make sense, but 'LP' wouldn't.

I already tried:
$arr = array($country_code['LP']);
if (sizeof($arr) == 0)
print "LP not found!"

But that doesn't seem to work :-s. Would sb have any suggestions?


Greetings,
Mattias

[Jon Kraft]

"Mattias.Campe" <MattiasDotNoSpamPlzThankYouCampe@UGent.be> wrote:

> I've got an multidimensional array
> $ret = $country_code[$countryCode][$langCode];
>
> Now I want to see if $countryCode is even in that array, because if it's
> not, it doesn't make many sense to look further for $langCode.

array_key_exists()

[url]http://uk.php.net/manual/en/function.array-key-exists.php[/url]

HTH;
JOn

[Mattias.Campe]

Jon Kraft wrote:

> "Mattias.Campe" <MattiasDotNoSpamPlzThankYouCampe@UGent.be> wrote:
>
>

>>I've got an multidimensional array
>>$ret = $country_code[$countryCode][$langCode];
>>
>>Now I want to see if $countryCode is even in that array, because if it's
>>not, it doesn't make many sense to look further for $langCode.

>
>
> array_key_exists()
>
> [url]http://uk.php.net/manual/en/function.array-key-exists.php[/url]

Perfect! Thx Jon!

Greetings,
Mattias