in reply to Perl and PHP
An embedded Perl interpreter for PHP does exist but it's a pretty bizarro thing to do.
Update: the following works here:
<?php $perl = new Perl(); $perl->eval(<<<'PERL' sub add_two { my $n = shift; return $n + 2; } PERL ); echo "add_two(3) is ... ", $perl->add_two(3), "\n";
Interestingly when running print "$^X $]" in the embedded Perl, I get: /usr/bin/php 5.010001 (that version number happens to correspond to my operating system's pre-packaged version of Perl).
perl -E'sub Monkey::do{say$_,for@_,do{($monkey=[caller(0)]->[3])=~s{::}{ }and$monkey}}"Monkey say"->Monkey::do'
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