Description:
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From manual page: http://www.php.net/function.intval#Return Values
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I can read in the manual that intval() could return 0 with empty objets or arrays, and 1 with non-empty objets or arrays.
Obviously, it seems intval() always return 1 with empty objets.

Regards,
Geoffray

Test script:
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$o = new stdClass();
echo 'empty object ='.intval($o)."\n";

$o->foo = 'bar';
echo 'non empty object ='.intval($o)."\n";

$a = array();
echo 'empty array ='.intval($a)."\n";

$a['foo'] = 'bar';
echo 'non empty array ='.intval($a)."\n";

Expected result:
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empty object =0
non empty object =1
empty array =0
non empty array =1

Actual result:
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empty object =1
non empty object =1
empty array =0
non empty array =1