[RESOLVED] json question

[cupboy]

Note the line that says "This line displays nothing."
How would I display the age value there?
I'm trying to figure out how to use json.

<?php
$small_test = array(
        'name' => array('John', 'Smith'),
        'age' => 27,
        'sex' => 0,
        'height' => 180.53,
        'is_human' => true,
        'string' => 'Hello'
    );
$big_test = array(
    array(
        'name' => array('John', 'Smith'),
        'age' => 27,
        'sex' => 0,
        'height' => 180.53,
        'is_human' => true,
        'string' => 'Hello'
    ),
    array(
        'name' => array('Green', 'Alien'),
        'age' => 642,
        'sex' => null,
        'height' => 92.21,
        'is_human' => false,
        'string' => '?????!'
    )
);

$test1 = json_encode($big_test);
print $test1;

$obj2 = json_decode($test1);
print "<br />TEST1 " . $obj2->{'age'} . "<br />"; // This line displays nothing. How can I fix it?
print_r($obj2);


$test2 = json_encode($small_test);
print $test2;

$obj2a = json_decode($test2);
print "<br />TEST2 " . $obj2a->{'age'} . "<br />"; // This shows 27
print_r($obj2a);


?>

[dagon]

$obj2[0]->age
$obj2[1]->age

for the 2 people, a loop would usually be used

foreach($obj2 as $o){
    echo 'age '.$o->age.'<br />'; 
}

[cupboy]

I was putting the subscript in the wrong place. Works now. Thank you.