MSWDS Session on PHPLinq - www.phplinq.net

1. A lap around PHPLinq Introducing PHP Language Integrated Query Maarten Balliauw http://blog.maartenballiauw.be http://twitter.com/maartenballiauw maarten@maartenballiauw.be

2. Who am I? Maarten Balliauw Antwerp, Belgium www.realdolmen.com Focus on web ASP.NET, ASP.NET MVC, PHP, Azure, VSTS, … MVP ASP.NET http://blog.maartenballiauw.be http://twitter.com/maartenballiauw

4. PHPLINQ?

5. Demo

7. LINQ – Example… int[] someNumbers = new int[] { 1, 2, 3, 4, 5 }; var results = from x in someNumberswhere x < 3 select new { Number = x }; foreach (var result in results) { Console.WriteLine(result.Number); }

8. PHPLinq PHP LanguageIntegrated Query PHP userlandlibrary 1 query language Multiple providers Featuring Anonymous types Object initializer Lambdaexpressions

9. PHPLinq – Example… $someNumbers = newarray(1, 2, 3, 4, 5); $results = from('$x')->in($someNumbers) ->where('$x => $x < 3') ->select('new { "Number" => $x }'); foreach ($results as $result) { print($result->Number); }

10. PHPLinq providers

11. LinqToObjects $employees = array( new Employee(1, 1, 5, 'Maarten', 'maarten@example.com', 24), new Employee(2, 1, 5, 'Paul', 'paul@example.com', 30), new Employee(3, 2, 5, 'Bill', 'bill.a@example.com', 29), new Employee(4, 3, 5, 'Bill', 'bill.g@example.com', 28), new Employee(5, 2, 0, 'Xavier', 'xavier@example.com', 40) ); $result = from('$employee')->in($employees) ->where('$employee => substr($employee->Name, 0, 4) == "Bill"') ->select('new { "Name" => $employee->Name, "Email" => $employee->Email }'); Array( [0] => stdClass Object ( [Name] => Bill [Email] => bill.a@example.com ) [1] => stdClass Object ( [Name] => Bill [Email] => bill.g@example.com ))

12. LinqToZendDb class EmployeeTable extends Zend_Db_Table { protected $_name = 'employees'; // table name protected $_primary = 'Id'; } $employeeTable = new EmployeeTable(array('db' => $db)); $employeeTable->setRowClass('Employee'); $result = from('$employee')->in($employeeTable) ->where('$employee => substr($employee->Name, 0, 4) == "Bill"') ->select('new { "Name" => $employee->Name, "Email" => $employee->Email }'); Array( [0] => stdClass Object ( [Name] => Bill [Email] => bill.a@example.com ) [1] => stdClass Object ( [Name] => Bill [Email] => bill.g@example.com ))

13. LinqToZendDb – Provider model $result = from('$employee')->in($employeeTable) ->where('$employee => trim($employee->Name) == "Bill"') ->select('$employee->Name'); Query on SQLiteSELECT "$employee".* FROM "employees" AS "$employee"WHERE (TRIM('$employee'."Name") = "Bill") Query on Microsoft SQL ServerSELECT "$employee".* FROM "employees" AS "$employee"WHERE (LTRIM(RTRIM('$employee'."Name")) = "Bill")

14. LinqToAzure $result = from('$employee')->in( array($azCli, 'employees', 'Employee') ) ->where('$employee => $employee->Name == "Bill"') ->select('new { "Name" => $employee->Name, "Email" => $employee->Email }'); Array( [0] => stdClass Object ( [Name] => Bill [Email] => bill.a@example.com ) [1] => stdClass Object ( [Name] => Bill [Email] => bill.g@example.com ))

15. Parsing XML? $rssFeed = simplexml_load_string(file_get_contents('http://blog.maartenballiauw.be/syndication.axd')); $result = from('$item')->in($rssFeed->xpath('//channel/item')) ->orderByDescending('$item => strtotime((string)$item->pubDate)') ->take(2) ->select('new { "Title" => (string)$item->title, "Author" => (string)$item->author }');

16. Joining multiple datasources? Notofficiallysupported!

17. Questions? Check http://phplinq.codeplex.com Contact me: http://blog.maartenballiauw.be maarten@maartenballiauw.be http://twitter.com/maartenballiauw Thankyou!