Shaveta_Chawla has asked for the wisdom of the Perl Monks concerning the following question:

Hello, I have an array carrying 10 values one of the value is:


$var = "res":{ "url":"http://www.abc.org/", "title":"extracting data using JSON ", "snippet":"valuable information using JSON ", "meta":{"xy_suburl":"/abstract/123.htm","xy_keywords":" JSON","hj_year":"2009" }}
i used the code: 
#!/usr/bin/perl --
use strict; use warnings;
use JSON;
Main( @ARGV );
exit( 0 );
sub Main {
    my $json = <<'__JSON__';
{"res":{ "url":"http://www.abc.org/", "title":"extracting data using J
+SON ", "snippet":"valuable information using JSON ", "meta":{"xy_subu
+rl":"/abstract/123.htm","xy_keywords":" JSON","hj_year":"2009"  }}}
__JSON__

    my $perl_scalar = JSON->new->decode($json);
    
    print JSON->new->utf8(1)->pretty(1)->encode($perl_scalar);  
    print $perl_scalar->{res}{title}, "\n";    
}
__END__

[download]

But using this i am able to get data of one line, but i need to generalize it. i want data from all the lines i.e from the array @var. How can i do it???

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Re: Extracting data using JSON
by roboticus (Chancellor) on Dec 08, 2011 at 11:23 UTC

    Shaveta_Chawla:

    You've already covered arrays in your course, right? Since your code works, you've already managed to get the JSON data into a scalar variable $perl_scalar. So now you can just use the same code you would normally use to put the value into or get it from an array.

    my @var;

... read JSON data into $perl_scalar

$var[3] = $perl_scalar;       # Put your JSON value into the array
my $another_scalar = $var[3]; # Retrieve the value

    [download]

    ...roboticus

    When your only tool is a hammer, all problems look like your thumb.

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Re: Extracting data using JSON
by Corion (Patriarch) on Dec 08, 2011 at 09:58 UTC
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