Сергей

var incoming = 'test2';
var ar = [{
  name: 'test1',
  avatar: 'url1'
},
{
  name: 'test2',
  avatar: 'url2'
},
{
  name: 'test3',
  avatar: 'url3'
}];

for (var i =0; i<ar.length; i++){
    if (ar[i].name == incoming){
    	ar.push(ar.splice(i,1)[0]);
    }
}

$my_variable; 
if ($_GET['language'] == 'en') { 
   $my_variable = $en_t1; 
} elseif ($_GET['language'] == 'ru') { 
   $my_variable = $ru_t1;
 } else { 
   $my_variable = $ru_t1;
 } 
echo $my_variable;