Case
Download zipped bulk documents
State
Php info return this:
    PHP Version => 5.5.16
    ZIP-based phar archives => enabled
    gzip compression => enabled
    bzip2 compression => disabled (install pecl/bz2)
    Native OpenSSL support => enabled
What's happening
This line :
$zip = new ZipArchive(); // is giving the error of Class 'ZipArchive' not found 
And this one :
extension_loaded('zip')  //is giving null 
Question
Is there a library Which should be included in the code like require_once(library) ? What is going wrong ? Thanks !