Perl has the ability to 'inline' HereDocs by using qq~~ (double quoting) and q~~ (single quoting) a portion of text exactly like a HereDoc does (parsing $vars while keeping nopn-escaped "s and 's as well) without taking up entire lines for start and end tags. Also the ~ symbol can be replaced by any character( q// and qq//, etc) that you wont be using within the string, and if you do, can be escaped to still print it out. It also allows for multiple HereDoc conversions on a single line, examples as follows: 

    echo <<< END_HERE1 
    remembers "quotes" and parses $vars 
    and 'remembers' new lines 
    END_HERE1;

    echo join("\n", $array_list); 

    echo <<< END_HERE2 
    and continues. 
    END_HERE2;

can be done as follows: 

    echo qq~... "quotes" and $vars\n~ . join("\n", $array_list) . qq~and ...\n~;

which allows more condensed code and, atleast i think, makes creating complex formatted HTML easier. This is not simply another alias btw (as mentioned in #12779) but a varying functionality that increases the power of PHP as seen in the examples. Since HereDocs do not do the q~~ (single quote version) at all nor do they function with multiples 'inline'd either.

I feel that this will alleviate many Perl convert's problems with formatting their pages a specific way and allow them to write however they need it written at the moment.