Data::Dump::PHP
I actually don't believe there isn't something like this in CPAN yet. Well, actually there is PHP::Var, but it has bugs, doesn't handle scalars, and doesn't do recursive structure. But then I am equally surprised to be able to hack Data::Dump::PHP in just a couple of hours, by blatantly copying from Gisle Aas' Data::Dump and just modifying only what's necessary.
And another note, PHP's var_export() currently can't dump recursive structures, which Data::Dump::PHP can.
How about PHP::Serialization?
@Robert: Yes, there are already a couple or so of Perl modules for *serialization* (equivalent to Storable, serialize()/unserialize() in PHP), but this one is for dumping PHP code which recreates the structure (equivalent to Data::Dumper, var_export()/eval() in PHP).
Ah, got it.