push (@array, $value);
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is the same as

push @array, "$value";
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It's not.

#!/usr/bin/perl

use strict;
use warnings;

my (@array, $value);

@array = ("foo");
$value = [];
push(@array, $value); 
$array[-1][0] = "bar";
print $array[-1][0], "\n";

@array = ("foo");
$value = [];
push @array, "$value";
$array[-1][0] = "bar";
print $array[-1][0], "\n";
__END__
bar
Can't use string ("ARRAY(0x818427c)") as an ARRAY ref while "strict re
+fs" in use
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