Make a string with 5 php variables

Question

Just think we need to echo a string something similar to this

sring01, sring02.<br />
sring03, sring04.</br />
sring05. 

all string come from variables. It is not important to have true values for all five variable. if they have false or empty output string should be different from above. just assume we have 2 empty variable for string02 and string03, then output should be

sring01, sring04.</br />
sring05.

Can anybody tell me what is the best way to achieve this?

I just tried it something like this but it doesn't work for me if not all variables true.

if($addressOne||$addressTwo||$city||$province||$country) {
    $location  = "$addressOne, $addressTwo.<br />";
    $location .= "$city, $province.<br />";
    $location .= "$country";
} else {
    $location = "some text";
    }

Answer 1

1.place all variable in a single array variable as elemnets like this 2.Then filter array for false values using this array function 3. Then chunk the filtered array using

$array = array($var1, $var2, $var3, $var4, $var5); //place all variables in an array

$filtered = array_filter($array); //Filter all false values such as '', null, FALSE

$chunk = array_chunk($filtered, 2); //Chunk whole array to smaller groups with 
                                    //atmost 2 elements
$data = '';
   foreach($chunk as $value)
   {
      $data .= implode(',', $value) . '<br/>';  //Then join two elements with ',' symbol
   }
echo $data;