我发现print_r在PHP非常有用，但想知道是否有任何远程等同于Perl？
解决方法
注意@tchrist建议
Data::Dump超过
Data::Dumper.我不知道它，但从它的外观，似乎它更容易使用，更好的看起来更容易解释的结果。
use Data::Dumper;
package Foo;
sub new {bless {'a' => 1,'b' => sub { return "foo" }},$_[0]};
package Fuz; # a weird REF-REF-SCALAR object
sub new {bless \($_ = \ 'fu\'z'),$_[0]};
package main;
$foo = Foo->new;
$fuz = Fuz->new;
$boo = [ 1,[],"abcd",\*foo,{1 => 'a',023 => 'b',0x45 => 'c'},\\"p\q\'r",$foo,$fuz];
########
# simple usage
########
$bar = eval(Dumper($boo));
print($@) if $@;
print Dumper($boo),Dumper($bar); # pretty print (no array indices)
$Data::Dumper::Terse = 1; # don't output names where feasible
$Data::Dumper::Indent = 0; # turn off all pretty print
print Dumper($boo),"\n";
$Data::Dumper::Indent = 1; # mild pretty print
print Dumper($boo);
$Data::Dumper::Indent = 3; # pretty print with array indices
print Dumper($boo);
$Data::Dumper::Useqq = 1; # print strings in double quotes
print Dumper($boo);