Si, todo es posible, solo hay que usar lógica.
Código PHP:
Ver original<?php
$a[] = "parte 1";
$a[] = "parte 2";
$t = "";
foreach($a as $k){
$t = $t.$k;
}
echo $t;
?>
o
<?php
$a[] = "parte 1";
$a[] = "parte 2";
$t = "";
foreach($a as $k){
$t.= $k;
}
echo $t;
?>