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XAMPP: Cross – Apache, MySQL , Php , Perl + FileZilla , Tomcat NetBeans : IDE

PHP Installation. XAMPP: Cross – Apache, MySQL , Php , Perl + FileZilla , Tomcat NetBeans : IDE. PHP - XAMPP. PHP – NetBeans IDE . Netbeans - default browser. Netbeans – Starts a project. PHP – Starting a project. Netbeans – Setting a project. Basic PHP Syntax.

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XAMPP: Cross – Apache, MySQL , Php , Perl + FileZilla , Tomcat NetBeans : IDE

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  1. PHP Installation XAMPP: Cross – Apache, MySQL, Php, Perl + FileZilla, Tomcat NetBeans: IDE

  2. PHP - XAMPP

  3. PHP – NetBeans IDE

  4. Netbeans- default browser

  5. Netbeans – Starts a project

  6. PHP – Starting a project

  7. Netbeans – Setting a project

  8. Basic PHP Syntax • <html><body><?phpecho "Hello World";?></body></html>

  9. Comment in Php • <html><body><?php//This is a comment/*This isa commentblock*/?></body></html>

  10. PHP Variables • <?php$txt="Hello World!";$x=16; • echo $txt;?> • --------------- • Hello World!

  11. PHP Operators

  12. if • <?php$d=date("D");if ($d=="Fri") echo "Have a nice weekend!";?> • <?php$d=date("D");if ($d=="Fri")  echo "Have a nice weekend!";else  echo "Have a nice day!";?>

  13. if • <?php$d=date("D");if ($d=="Fri")  echo "Have a nice weekend!";elseif ($d=="Sun")  echo "Have a nice Sunday!";else  echo "Have a nice day!";?>

  14. switch • <?phpswitch ($x){case 1:  echo "Number 1";  break;case 2:  echo "Number 2";  break;case 3:  echo "Number 3";  break;default:  echo "No number between 1 and 3";}?>

  15. Numeric Arrays • $cars=array("Saab","Volvo","BMW","Toyota"); • -------------or • $cars[0]="Saab";$cars[1]="Volvo";$cars[2]="BMW";$cars[3]="Toyota"; echo $cars[0] . " and " . $cars[1] . " are Swedish cars.";

  16. Associative Arrays • ID key => value • $ages = array("Peter"=>32, "Quagmire"=>30, "Joe"=>34); • -------------------or----------------- • $ages['Peter'] = "32";$ages['Quagmire'] = "30";$ages['Joe'] = "34";echo "Peter is " . $ages['Peter'] . " years old."; • ---------------------------------- • Peter is 32 years old.

  17. Multidimensional Arrays

  18. Multidimensional Arrays • echo "Is " . $families['Griffin'][2] . " a part of the Griffin family?"; • ---------------------------------- • Is Megan a part of the Griffin family?

  19. While Loops

  20. Do While Loops

  21. For Loops

  22. Foreach Loops

  23. Create a PHP Function

  24. Create a PHP Function

  25. Create a PHP Function

  26. Create a PHP Function

  27. $_GET variable • <form action="welcome.php" method="get">Name: <input type="text" name="fname" />Age: <input type="text" name="age" /><input type="submit" /></form> • ----------------------------- • http://localhost/welcome.php?fname=Peter&age=37 • ----------------------------- • Welcome <?php echo $_GET["fname"]; ?>.<br />You are <?php echo $_GET["age"]; ?> years old! • When using method="get" in HTML forms, all variable names and values are displayed in the URL.

  28. $_POST variable • <form action="welcome.php" method="post">Name: <input type="text" name="fname" />Age: <input type="text" name="age" /><input type="submit" /></form> • ------------------------------------ • Welcome <?php echo $_POST["fname"]; ?>!<br />You are <?php echo $_POST["age"]; ?> years old. • Information sent from a form with the POST method is invisible to others and has no limits on the amount of information to send. • However, because the variables are not displayed in the URL, it is not possible to bookmark the page.

  29. $_REQUEST Variable • Welcome <?php echo $_REQUEST["fname"]; ?>!<br />You are <?php echo $_REQUEST["age"]; ?> years old. • ---------- • The predefined $_REQUEST variable contains the contents of both $_GET, $_POST, and $_COOKIE. • The $_REQUEST variable can be used to collect form data sent with both the GET and POST methods.

  30. PHP Date() Function • date(format [, timestamp]) • <?phpecho date("Y/m/d") . "<br />";echo date("Y-m-d");?> • 2011/11/17 2011-11-17

  31. PHP Date() Function • mktime(hour,minute,second,month,day,year,is_dst) • <?php$tomorrow = mktime(0,0,0,date("m"),date("d")+1,date("Y"));echo "Tomorrow is ".date("Y/m/d", $tomorrow);?> • Tomorrow is 2011/11/18

  32. PHP include() Function • <html><body><?php include("header.php"); ?><h1>Welcome to my home page!</h1><p>Some text.</p></body></html>

  33. PHP include() Function

  34. PHP File Handling • Reading a File Line by Line <?php$file = fopen("welcome.txt", "r") or exit("Unable to open file!");//Output a line of the file until the end is reachedwhile(!feof($file))  {  echo fgets($file). "<br />";  }fclose($file);?>

  35. PHP File Handling • Reading a File Character by Character <?php$file=fopen("welcome.txt","r") or exit("Unable to open file!");while (!feof($file))  {  echo fgetc($file);  }fclose($file);?>

  36. PHP File Upload • Create an Upload-File Form <form action="upload_file.php" method="post"enctype="multipart/form-data"><label for="file">Filename:</label><input type="file" name="file" id="file" /> <br /><input type="submit" name="submit" value="Submit" /></form>

  37. Create The Upload Script • upload_file.php <?phpif ($_FILES["file"]["error"] > 0)  {  echo "Error: " . $_FILES["file"]["error"] . "<br />";  }else  {  echo "Upload: " . $_FILES["file"]["name"] . "<br />";  echo "Type: " . $_FILES["file"]["type"] . "<br />";  echo "Size: " . ($_FILES["file"]["size"] / 1024) . " Kb<br />";  echo "Stored in: " . $_FILES["file"]["tmp_name"];  }?>

  38. Save uploaded File • upload_file.php <?php// Upload file and Display result    if (file_exists("upload/" . $_FILES["file"]["name"]))      {      echo $_FILES["file"]["name"] . " already exists. ";      }    else      {move_uploaded_file($_FILES["file"]["tmp_name"],      "upload/" . $_FILES["file"]["name"]);      echo "Stored in: " . "upload/" . $_FILES["file"]["name"];}?>

  39. Create a Cookie • setcookie(name, value, expire, path, domain); • <?phpsetcookie("user", "Alex Porter", time()+3600);?> • <?php$expire=time()+60*60*24*30;setcookie("user", "Alex Porter", $expire);?> • 60 sec * 60 min * 24 hours * 30 days

  40. Retrivea Cookie • <?phpif (isset($_COOKIE["user"]))  echo "Welcome " . $_COOKIE["user"] . "!<br />";else  echo "Welcome guest!<br />";?>

  41. Delete a Cookie • <?php// set the expiration date to one hour agosetcookie("user", "", time()-3600);?>

  42. PHP Session Variables • Starting a PHP Session • Before you can store user information in your PHP session, you must first start up the session. • Note: The session_start() function must apear BEFORE the <html> tag: • <?phpsession_start(); ?><html><body></body></html>

  43. PHP Session Variables • <?phpsession_start();// store session data$_SESSION['views']=1;?> • <?php//retrieve session dataecho "Pageviews=". $_SESSION['views'];?>

  44. PHP Session Variables • <?phpsession_start();if(isset($_SESSION['views']))$_SESSION['views']=$_SESSION['views']+1;else$_SESSION['views']=1;echo "Views=". $_SESSION['views'];?>

  45. PHP Destroying a Session • <?phpsession_destroy();?> • Free a session variable <?phpunset($_SESSION['views']);?>

  46. PHP mail() Function • <?php$to = "someone@example.com";$subject = "Test mail";$message = "Hello! This is a simple email message.";$from = "someonelse@example.com";$headers = "From:" . $from;mail($to,$subject,$message,$headers);echo "Mail Sent.";?>

  47. PHP mail() Function • <?phpif (isset($_REQUEST['email']))//if "email" is filled out, send email  {  //send email  $email = $_REQUEST['email'] ;  $subject = $_REQUEST['subject'] ;  $message = $_REQUEST['message'] ;  mail("someone@example.com", "$subject",  $message, "From:" . $email);  echo "Thank you for using our mail form";  }else//if "email" is not filled out, display the form  {  echo "<form method='post' action='mailform.php'>  Email: <input name='email' type='text' /><br />  Subject: <input name='subject' type='text' /><br />  Message:<br />  <textarea name='message' rows='15' cols='40'>  </textarea><br />  <input type='submit' />  </form>";  }?>

  48. Error Handling • <?phpif(!file_exists("welcome.txt"))  {  die("File not found");  }else  {  $file=fopen("welcome.txt","r");  }?>

  49. Error Handling • <?php//error handler functionfunction customError($errno, $errstr)  {  echo "<b>Error:</b> [$errno] $errstr<br />";  echo "Ending Script";  die();  }//set error handlerset_error_handler("customError",E_USER_WARNING);//trigger error$test=2;if ($test>1)  {trigger_error("Value must be 1 or below",E_USER_WARNING);  }?>

  50. Error Handling • <?php//create function with an exceptionfunction checkNum($number)  {  if($number>1){ throw new Exception("Value must be 1 or below");    }  return true;   }//trigger exception in a "try" blocktry{ checkNum(2);  //If the exception is thrown, this text will not be shown  echo 'If you see this, the number is 1 or below';   }//catch exceptioncatch(Exception $e){   echo 'Message: ' .$e->getMessage();   }?> • Message: Value must be 1 or below

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