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What's Covered

51Degrees device detector returns all detection results as a string. This tutorial demonstrates how to return results for the IsMobile property value as a boolean.

Code and Explanation

Getting started example of using 51Degrees device detection. The example shows how to:

  1. Set the various settings for 51Degrees detector

    												
    my $filename = "../../data/51Degrees-LiteV3.4.trie";
    my $propertyList = "IsMobile"
    
    												

  • Instantiate the 51Degrees device detection provider with these properties

    									
    my $provider = new FiftyOneDegrees::TrieV3::Provider(
    	$dataFile,
    	$propertiese);
    
    									
  • Produce a match for a single HTTP User-Agent header

    									
    my $match = $provider->getMatch($userAgent)
    
    									
  • Extract the value of the IsMobile property as boolean

    									
    sub isMobile {
    	my $match = @_[0];
    	my $isMobileString = $match->getValue("IsMobile");
    	if ($isMobileString eq "True") {
    		return 1;
    	}
    	else {
    		return;
    	}
    }
    
    									
    This example assumes you are running from the original subdirectory i.e. Device-Detection/perl/examples/ and the 51Degrees Perl module is installed.

    Full Source File
    												
    use FiftyOneDegrees::TrieV3;
    use feature qw/say/;
    
    my $filename = "../../data/51Degrees-LiteV3.4.trie";
    my $propertyList = "IsMobile";
    
    # User-Agent string of an iPhone mobile device.
    my $mobileUserAgent = "Mozilla/5.0 (iPhone; CPU iPhone OS 7_1 like Mac OS X) ".
    "AppleWebKit/537.51.2 (KHTML, like Gecko) 'Version/7.0 ".
    "Mobile/11D167 Safari/9537.53";
    
    # User-Agent string of Firefox Web browser version 41 on desktop.
    my $desktopUserAgent = "Mozilla/5.0 (Windows NT 6.3; WOW64; rv:41.0) ".
    "Gecko/20100101 Firefox/41.0";
    
    # User-Agent string of a MediaHub device.
    my $mediaHubUserAgent = "Mozilla/5.0 (Linux; Android 4.4.2; X7 Quad Core ".
    "Build/KOT49H) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 ".
    "Chrome/30.0.0.0 Safari/537.36";
    
    # Initialises the device detection provider with the settings declared above.
    # This uses Lite data file. For more info
    # see:
    # <a href="https://51degrees.com/compare-data-options">compare data options
    # </a>
    
    my $provider = new FiftyOneDegrees::TrieV3::Provider(
        $filename,
        $propertyList);
    
    # isMobile function. Takes a match object as an argument, carries out a
    # match and returns a boolean value for the IsMobile property of the
    # matched device.
    
    sub isMobile {
        my $match = @_[0];
        my $isMobileString = $match->getValue("IsMobile");
        if ($isMobileString eq "True") {
            return 1;
        }
        else {
            return 0;
        }
    }
    
    say "Starting Getting Started Strongly Typed Example.";
    
    # Determines whether the mobile User-Agent is a mobile device.
    say "\nUser-Agent: $mobileUserAgent";
    my $match = $provider->getMatch($mobileUserAgent);
    my $isMobileBool = isMobile($match);
    if ($isMobileBool) {
        say "   Mobile";
    }
    else {
        say "   Non-Mobile";
    }
    
    # Determines whether the desktop User-Agent is a mobile device.
    say "\nUser-Agent: $desktopUserAgent";
    my $match = $provider->getMatch($desktopUserAgent);
    my $isMobileBool = isMobile($match);
    if ($isMobileBool) {
        say "   Mobile";
    }
    else {
        say "   Non-Mobile";
    }
    
    # Determines whether the MediaHub User-Agent is a mobile device.
    say "\nUser-Agent: $mediaHubUserAgent";
    my $match = $provider->getMatch($mediaHubUserAgent);
    my $isMobileBool = isMobile($match);
    if ($isMobileBool) {
        say "   Mobile";
    }
    else {
        say "   Non-Mobile";
    }
    
    
    												
    Full Source File

  • Summary

    In this tutorial you have seen how to use the detector to retrieve the IsMobile property for a pre-defined User-Agent string. It sets a boolean value to true or false from the original string value of "True" or "False", making if statements simpler to test.