Checking an array for multiple kinds of values...

[bluegray]

Forgive my brevity, I'm short on time, and don't exactly know how to articulate this question.

 

So I'm going to have an array with different country names in it.  Call it $country []. 

 

Now I need to check the array for any non-U.S. country.  The array will always have at least 1 U.S. in it, but I need to know how to check for true/false the presence of there also being something else like UK, MX, AU, etc. 

 

Do I need to specify anything else?  Please help me, PHP addicts  .

 

[.josh]

in_array

[bluegray]

in_array

 

Then I would have to do in_array once for every other kind of country there is.  Not Very Efficient.  Maybe it can be done with in_array but you need to specify how because the how is where I'm stuck.

 

[Pikachu2000]

What is the structure of the array you have? Can you post some sample data, or perhaps a print_r() of it?

[bluegray]

What is the structure of the array you have? Can you post some sample data, or perhaps a print_r() of it?

 

Okay, so here's my goal.  I need to make sure a foreign country portion of the page is not displaying if there are no foreign countries (native country being U.S.) in the array.

 

here's an example of the $country array on a dump:

array(4) { 
[0]=>  string(2) "US" 
[1]=>  string(2) "US" 
[2]=>  string(2) "US"  
} 

 

So naturally I don't want the "Foreign" country section to display if there are no foreign countries.  However, there are alternatively some 40+ other country names to check for so I need a solution that scans for anything that's not the U.S. and then returns a true/false. 

 

[Pikachu2000]

Try this. If $non_us == TRUE, that means there are other countries in the array. Do these values come from a database query, by chance?

 

$non_us = '';
foreach( $array as $v ) {
     if( $v != 'US' ) {
          $non_us = TRUE
          break;
     }
}

[bluegray]

Try this. If $non_us == TRUE, that means there are other countries in the array. Do these values come from a database query, by chance?

 

Yes the values come from a Database query.  Why, what are your thoughts?

[AbraCadaver]

For fun:

 

$non_us = (count(array_unique($country)) > 1);

[bluegray]

Thanks Kindly everyone!

[.josh]

Ah okay, I slightly misunderstood, I thought it was the other way around, checking if 'US' was in array.

 

I like the array_unique solution. Here's another one-liner:

if (count(array_diff($countries,array('US'))) > 0) {
  // non-US in array
}