Cant use dump() function in twig files or how to enable debug in opencart twig or print_r alternate use dump() in opencart 3.0

STAR LOGIC Programming PHP 

INPUT

<?php

for($i=4;$i>=1;$i--){

for($j=1;$j<=$i;$j++){
echo "&nbsp;\t";
}

for($k=4;$k>=$i;$k--){
echo "*";
echo "&nbsp;\t";
}
echo "<br/>";
}

for($l=1;$l<=4;$l++){

for($m=1;$m<=$l;$m++){
echo "&nbsp;\t";
}

for($n=4;$n>=$l;$n--){
echo "*";
echo "&nbsp;\t";
}
echo "<br/>";
}

?> 

OUTPUT


        * 
      *  * 
    *  *  * 
  *  *  *  * 
  *  *  *  * 
    *  *  * 
      *  * 
        *