51Degrees Device Detection On-Premise PHP  4.4

Device detection services for 51Degrees Pipeline


This example shows how the hasValue function can help make sure that meaningful values are returned when checking properties returned from the device detection engine.This example is available in full on GitHub.

In this example we create an on premise 51Degrees device detection pipeline, in order to do this you will need a copy of the 51Degrees on-premise library and need to make the following additions to your php.ini file

FiftyOneDegreesHashEngine.data_file = // location of the data file
FiftyOneDegreesHashEngine.allow_unmatched = false

When running under process manager such as Apache MPM or php-fpm, make sure to set performance_profile to MaxPerformance by making the following addition to php.ini file. More details can be found in README.

FiftyOneDegreesHashEngine.performance_profile = MaxPerformance

Expected output:

Does User-Agent 'Mozilla/5.0 (iPhone; CPU iPhone OS 11_2 like Mac OS X) AppleWebKit/604.4.7 (KHTML, like Gecko) Mobile/15C114' represent a mobile device?:
Does User-Agent 'nonsense ua...' represent a mobile device?:
We don't know for sure. The reason given is:
The results contained a null profile for the component which the required property belongs to.
/* *********************************************************************
* This Original Work is copyright of 51 Degrees Mobile Experts Limited.
* Copyright 2022 51 Degrees Mobile Experts Limited, Davidson House,
* Forbury Square, Reading, Berkshire, United Kingdom RG1 3EU.
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// First we include the deviceDetectionPipelineBuilder
require(__dir__ . "/../../vendor/autoload.php");
$device = new DeviceDetectionOnPremise();
$pipeline = new PipelineBuilder();
$pipeline = $pipeline->add($device)->build();
// Here we create a function that checks if a supplied User-Agent is a
// mobile device
function failuretomatch_checkifmobile($userAgent = "", $pipeline) {
// We create the flowData object that is used to add evidence to and read data from
$flowData = $pipeline->createFlowData();
// Add the User-Agent as evidence
$flowData->evidence->set("header.user-agent", $userAgent);
// Now we process the flowData
$result = $flowData->process();
// First we check if the property we're looking for has a meaningful result
print("Does User-Agent '<b>" . $userAgent . "</b>' represent a mobile device?:");
} else {
} else {
print("We don't know for sure. The reason given is:");
// If it doesn't have a meaningful result, we echo out the reason why
// it wasn't meaningful
// Some example User-Agents to test
$iPhoneUA = 'Mozilla/5.0 (iPhone; CPU iPhone OS 11_2 like Mac OS X) AppleWebKit/604.4.7 (KHTML, like Gecko) Mobile/15C114';
failuretomatch_checkifmobile($iPhoneUA, $pipeline);
$badUserAgent = 'nonsense ua...';
failuretomatch_checkifmobile($badUserAgent, $pipeline);