PHP variables inside echo string are formatted to the new line 😢

@prettier/plugin-php v0.17.2
Playground link

Input:

<?php

function test($var1, $var2) {
  echo '<div class="'.$var1.'"></div>
  <div class="'.$var2.'"></div>';
}

Output:

<?php

function test($var1, $var2) {
  echo '<div class="' .
    $var1 .
    '"></div>
  <div class="' .
    $var2 .
    '"></div>';
}

Expected Output:

Inline variables should not jump to the new line. Can I control this behavior? Also, valid spacing should be there between quotes and concatenation operators as below.

<?php

function test($var1, $var2) {
  echo '<div class="' . $var1 . '"></div>
  <div class="' . $var2 . '"></div>';
}

Start with the linked Playground and reproduce the PHP input using @prettier/plugin-php v0.17.2. Compare the current output with the expected output; done means inline variables remain on the same line and concatenation operators have spacing as shown.