Example code snippets showing how Robot Framework test libraries and remote servers can be used externally with other frameworks and tools like PHPUnit. Note that it only presents code from the PHP side, not the RF remote server & library side, which a RF user/developer should already be familiar with.

RfLibrariesUsedExternally.php

<?php
include_once dirname(__FILE__) . '/../Extensions/IXR_Library.php'; //for XML-RPC

//some code to drive browser with Selenium to get to LDAP login point
$client = new IXR_Client('http://localhost:8270/RPC2');
if (!$client->query('run_keyword', 'LDAPLogin', array("yourUserName", "yourPassword"))) {
  print 'An error occurred - '.$client->getErrorCode().":".$client->getErrorMessage();
}
/* now code that continues with Selenium after LDAP login completed 
using custom AutoIt library (in Perl) served by RF Perl remote server
*/

/* more complex example below utilizing AutoIt library server mentioned above
and Sikuli library in Java served via jrobotremoteserver 1.x
*/
//some Selenium code to get to where we want to be first...then stuff to do non-browser UI automation:
$autoitClient = new IXR_Client('http://localhost:8270/RPC2');
$sikuliClient = new IXR_Client('http://localhost:8271');
print "\nSleep 30 sec for art file to open in Illustrator.\n";				
sleep(30);
print "\nNow switching to Illustrator window.\n";
//switch to Illustrator window
if (!$autoitClient->query('run_keyword', 'activateIllustrator')){
  print 'An error occurred - '.$autoitClient->getErrorCode().":".$autoitClient->getErrorMessage();
}
//verify opened art file before processing
if (!$sikuliClient->query('run_keyword', 'object_exists', array("img/artFileStart.png", 60))){
  print 'An error occurred - '.$sikuliClient->getErrorCode().":".$sikuliClient->getErrorMessage();
}  
$resp = $sikuliClient->getResponse();
$this->assertEquals(true,$resp['return']);
print "\nVerified art file opened.\n";
//run an Illustrator script against art file
if (!$autoitClient->query('run_keyword', 'runSomeillustratorScript')){
 print 'An error occurred - '.$autoitClient->getErrorCode().":".$autoitClient->getErrorMessage();
}
print "\nSleep 30 sec for script to finish.\n";
sleep(30);
if (!$sikuliClient->query('run_keyword', 'object_exists', array("img/artScriptCompletedState.png", 60))){
  print 'An error occurred - '.$sikuliClient->getErrorCode().":".$sikuliClient->getErrorMessage();
}  
$resp = $sikuliClient->getResponse();
$this->assertEquals(true,$resp['return']);
print "\nVerified script ran successfully.\n";
//test cleanup follows, as we've reached end of test
?>