I normally spend so much time cranking out tutorials that I never stop to organize things. So, here I will layout a complete Web Design Tutorial.
When I say complete I really mean complete. I’ve created over 76 videos on HTML, CSS, XML, xHTML, PHP, MySQL, JavaScript, JQuery, and AJAX among other subjects.
All of the code I use in the tutorials is also free to use under the GNU license. That basically means you can do anything you like with it as long as you don’t sue me 🙂
In the last part of this tutorial PHP Message Board Part 2 I set up the database access file, some security stuff and a user registration page. In this part of my message board tutorial I finish off the user registration page.
In this tutorial I’ll show you how to do the following:
I show you how to create a PHP / MySQL message board in this video tutorial. I start by showing you how to properly set up the database. this can be looked at as a review on how to write SQL as well.
I specifically will review how to:
In todays Programming tutorial I show you how to grab information from a website using Regular Expressions in PHP. The information was particularly hard to get for the following reasons:
I did it though using Regular Expressions and I’ll show you how.
In this web design and programming video tutorial I’ll show you how to make a secure forgotten password script. These scripts are attacked more than mosts and normally are full of security flaws.
I specifically cover how to:
All of the code used will follow the video. If you have any questions or comments leave them below.
If you have a recommendation for a future tutorial leave that below as well 🙂
Code From the Video
A few months ago a friend asked me to take a look at their website because they had been receiving an immense amount of spam. Worse yet they were also receiving threats from others to stop sending spam to them. I immediately knew they were being targeted by code injection, but as I dug around I found more danger than I was expecting.
It seems that their grandchild (No doubt a future Mark Zuckerberg) had created the shopping cart for them. The shopping cart application had little to know security. In seconds I was able to dump all of their customers credit card information on to the screen before their frightened eyes.
In this video / article on PHP Security I will show you how to create more secure new user registration scripts. I’ll show you how to:
In this part of the Web Design and Programming Tutorial I will review how to use 3 global storage arrays available in PHP. Specifically in this video I’ll show you how to use:
In this web design and programming video tutorial I will review a lot of what you have been taught previously. I’ll review many topics by showing you how to make drop down boxes that are populated from data stored in a database. If you don’t completely understand everything don’t worry about it. That’s why it is a review.
All of the code from the video follows the video. I included additional comments in the code that you can better understand what is going on. You also should print out the code and refer to it as you watch the video for better comprehension.
Here is a dump file for the database Database Dump File.
If you have any questions or comments leave them below, otherwise enjoy the video 🙂
Code From the Video
In this video tutorial I show you the many ways to insert information into MySQL. I specifically show you how to enter the information:
I then go into some other basic queries you need to understand to use MySQL. All of the code used follows the video.
In this PHP video tutorial I’ll show you how to work with exception handling.
When an error occurs in your code this code is referred to as an exception. Meaning the code runs fine Except if the user of the code does certain things. When these Exceptions occur an error is thrown and handled by code that lies somewhere else in your code.
I specifically cover the following topics in the video:
In this PHP video tutorial I’ll cover how to manipulate files with PHP. Specifically I cover the following:
Here is a link to the first article and video for this series, if you haven’t seen it Web Design and Programming.
All of the code follows the video. Use it in anyway. Leave any questions or comments below.
Code from the Video
<html>
<head>
<title><?php echo “Object Oriented Programming”;?></title>
</head>
<body>
<?php
# Creates a file descriptor and assigns it to $file
# The second attribute opens the file for read only purposes
# You can access any file online with this same function
# r+ – Read and Write from beginning of file
# w – Write only to beginning of file
# w+ – Delete contents and read and write to file
# a – Write only to the end of the file
# a+ – Read and Write to the end of the file
$file = fopen(“customers.txt”, “r”);
# While the end of file hasn’t been met print lines to screen
while (!feof($file))
{
# fgets() returns all the characters up to a newline or EOF
# You can also specify the number of characters to return in the 2nd attribute
echo fgets($file). “<br />”;
}
echo “<br />”;
# You can also read a file into an array
$customers = file(“customers.txt”);
foreach ($customers as $customer)
{
list($name,$street,$city,$state) = explode(“,”, $customer);
$state = trim($state);
echo “Name: ” . “$name <br />”;
echo “Street: ” . “$street <br />”;
echo “City: ” . “$city <br />”;
echo “State: ” . “$state <br /><br />”;
}
# Close the file
fclose($file);
$file4 = fopen(“customers.txt”, “a”);
$newCustomer = “\nRick,219 Almond St,Pittsburgh,PA”;
fwrite($file4, $newCustomer);
fclose($file4);
# You can also read a file into a string
$customers = file_get_contents(“customers.txt”);
$customers = explode(“\n”,$customers);
foreach ($customers as $customer)
{
list($name,$street,$city,$state) = explode(“,”, $customer);
$state = trim($state);
echo “Name: ” . “$name <br />”;
echo “Street: ” . “$street <br />”;
echo “City: ” . “$city <br />”;
echo “State: ” . “$state <br /><br />”;
}
$file2 = fopen(“http://www.wikileaks.ch/static/html/faq.html”, “rt”);
while (!feof($file2))
{
$faqs .= fgetss($file2, 1024);
}
fclose($file2);
$file3 = fopen(“justthefaqs.txt”, “wt”);
fwrite($file3, $faqs);
fclose($file3);
?>
</body>
</html>
Here I continue to explain Object Oriented Programming with PHP. If you missed the first part definitely watch that video tutorial first Object Oriented Programming with PHP.
Here I’ll cover the following topics:
If you have any questions, leave them below. All of the code follows the video.
All the Code from the Video
<html>
<head>
<title><?php echo “Object Oriented Programming”;?></title>
</head>
<body>
<?php
# Inheritance is done when you create a new class from another, thus borrowing the data
# and methods that can be found there.
class Animal
{
private $name; # Private variables are only accessed by class methods, but not subclasses
private $favFood = “meat”;
# A static attributes value is shared by all objects of the class
# You refer to static attribute like this self::$numOfAnimals, not with $this
public static $numOfAnimals = 0;
# Constructor and Deconstructor
public function __construct($name=”No Name”)
{
echo “__construct was called”. “<br />”;
$this->setName($name);
self::$numOfAnimals++;
}
public function __destruct()
{
echo “__destruct was called”. “<br />”;
}
# Get and Set Methods – final is used to keep methods from being overwritten
final public function getName()
{
return $this->name;
}
final public function setName($sentName)
{
$this->age = $sentName;
}
# Animal Default Functions
public function makeNoise()
{
echo “Grrrr”. “<br />”;
}
public function favFood()
{
echo “My favorite food is ” . $this->favFood . “<br />”;
}
public function move()
{
echo “Walk around”. “<br />”;
}
}
class Dog extends Animal
{
# If I didn’t create a new constructor the parent would be called
public function __construct($name=”No Name”)
{
parent::__construct($name); # How to call the parent constructor
# Animal::__construct($name); this would also call the parent constructor
}
public function __destruct()
{
echo “__destruct was called”. “<br />”;
}
# Dog Default Functions Overwrites Class Function
public function makeNoise()
{
Animal::makeNoise(); # How to call the original class method
echo “Bark, Bark”. “<br />”;
}
}
#function animalStuff(
$grover = new Dog(“Grover”); # Create an object grover of class Dog
$paul = new Dog(“Paul”);
$grover->makeNoise(); # Call the makeNoise() method for the grover object
$grover->favFood();
$grover->move();
echo Animal::$numOfAnimals. “<br />”; # Prints out the number of objects created
?>
</body>
</html>
In this PHP video tutorial I cover Object Oriented Programming with PHP. I specifically go over the following topics:
All of the code from the tutorial is available after the video. Use it in anyway that you like. I’ll continue covering OOP with PHP in the next video tutorial in this series.
If you have any questions leave them below.
All the Code from the Video
<html>
<head>
<title><?php echo “Object Oriented Programming”;?></title>
</head>
<body>
<?php
# Encapsulation lets you hide the code behind an interface so you can protect the code
# and so your user need not understand the code to use it
# A class is a blueprint you use to create objects
# Objects contain the data (attributes) and actions (methods) needed to perform its tasks
# Inheritance is done when you create a new class from another, thus borrowing the data
# and methods that can be found there.
# Polymorphism allows a class to perform differently based on how it is being used.
# Polymorphism can be used to a certain extent with PHP in that you can use common
# method and attribute names for similar classes
# Any use of this is a reference to a specific object and that objects attributes and methods
class Animal
{
public $name; # Public variables can be accessed directly by anyone
private $age; # Private variables are only accessed by class methods, but not subclasses
protected $money; # Protected is like private except can be accessed by inherited classes
const POUNDID = 12345; # A constants value can never change
# A static attributes value is shared by all objects of the class
# You refer to static attribute like this self::$numOfAnimals, not with $this
private static $numOfAnimals = 0;
public function __construct($age)
{
echo “__construct was called”. “<br />”;
$this->setAge($age);
}
public function __destruct()
{
echo “__destruct was called”. “<br />”;
}
# __set can be used to perform error checking before assigning values to private attribs
function __set($attribName, $attribValue)
{
echo “__set was called for “. $attribName. “<br />”;
$this->$attribName = $attribValue;
}
# __get can be used to perform error checking before returning values from private attribs
function __get($attribName)
{
echo “__get was called for “. $attribName. “<br />”;
return $this->$attribName;
}
public function getAge()
{
return $this->age;
}
public function setAge($sentAge)
{
$this->age = $sentAge;
}
}
$dog = new Animal(8); # Create an object dog of class Animal
$dog->name = “Grover”; # Assign a value to the public attribute name
$dogName = $dog->name; # Retreive value from public attribute name
$dog->setAge(8); # Call the setAge() method for the dog object
$dog->age = 9; # Try to set a private attribute that makes a call to __set
echo $dog->age. “<br />”; # Try to get a private attribute that makes a call to __get
echo “The dogs name is ” . $dogName . “<br />”;
echo “The dogs age is ” . $dog->getAge() . “<br />”;
echo “The pounds ID number is “. $dog::POUNDID. “<br />”;
?>
</body>
</html>
Here I show you how to use many string manipulation methods in PHP. Also, I finish showing you how to use regular expressions.
You should watch the previous 2 PHP Regular Expressions video tutorials before you continue on to this one. They are avaialable here PHP Regular Expressions & PHP Regular Expressions Pt 2
I specifically cover the following PHP Methods in this tutorial:
In this video I’ll continue to show you how to retrieve specific information using Regular Expressions and PHP. I’ll specifically cover how to find:
In this video tutorial I will tackle Regular Expressions. People think Regular Expressions are too hard to use. And, while I have received many thank you’s for creating my last Regex Tutorial. Here I’m going to finish up where I left off.
Before you proceed you should most definitely take a look at those Web Design and Programming tutorials that came previous to this one. This tutorial starts with this article Web Design and Programming.
In this part of the Web Design and Programming tutorial, I will show you how to do anything with PHP functions. Specifically I will cover:
In part 5 of my Web Design and Programming tutorial I will cover the following topics:
And, I’ll also go over a bunch of other functions specific to arrays. If you missed part 1 of this tutorial it is available here Web Design and Programming.
All of the code in this tutorial will follow the video. Use it in any way that you would like.
If you have any questions or comments leave them below and I’ll answer them.
Code from the Video
<html>
<head>
<title><?php echo “Arrays”;?></title>
</head>
<body>
<?php
# An array is just a big box containing many similar boxes
# This information is similar to each other
# All the the information or values have a coresponding key or label associated with it
# An array can contain any combination of numbers, strings or other arrays
# Create basic array with key value pairs
/* $myInfo = array(“Name” => “Derek”, “Street” => “123 Main St”, “City” => “Pittsburgh”);
# Get the value by calling for the key associated with it
echo “My name is “, $myInfo[“Name”], “<br /><br />”;
$moreInfo = array(“State” => “PA”, “Age” => 35);
# Merge 2 arrays into one
$myInfo = array_merge($myInfo, $moreInfo);
# Iterate through the array with the foreach looping device
foreach( $myInfo as $key => $value)
{
echo $key, ” “, $value, “<br />”;
}
echo “<br /><br />”;
# Search for a key in an array
if(array_key_exists(“Name”, $myInfo)) echo “The name stored is “, $myInfo[“Name”];
echo “<br /><br />”;
# Search for a value in an array
$citySearch = array_search(“Pittsburgh”, $myInfo);
echo “The key for the city is “, $citySearch;
echo “<br /><br />”;
print_r (array_keys($myInfo)); # Short cut to provide the arrays keys
echo “<br /><br />”;
print_r (array_values($myInfo)); # Short cut to provide the arrays keys & values
echo “<br /><br />”;
# Create a Multidimensional Array
$customer1 = array(“Name” => “Derek”, “Street” => “123 Main St”, “City” => “Pittsburgh”);
$customer2 = array(“Name” => “Sally”, “Street” => “213 Grant St”, “City” => “Pittsburgh”);
$customers = array($customer1,$customer2);
print_r(array_values($customers));
echo “<br /><br />”;
foreach( $customers as $key)
{
foreach( $key as $key2 => $value)
{
echo $key2, ” “, $value, “<br />”;
}
} */
$countryStr = “Cuba,Spain,India,France,Italy”;
$randCountry = explode(“,”, $countryStr);
echo $randCountry[0], ” “, $randCountry[1], “<br /><br />”;
$countryStr2 = implode(“,”, $randCountry);
echo $countryStr2, “<br /><br />”;
if(in_array(“India”, $randCountry)) echo “India is in the list”;
echo “<br /><br />”;
print_r(array_reverse($randCountry,true));
echo “<br /><br />”;
sort($randCountry, SORT_STRING);
print_r($randCountry);
echo “<br /><br />”;
$countArray = range(0,50);
foreach($countArray as $printNum)
{
echo $printNum, “, “;
}
echo “<br /><br />”;
echo count($countArray);
echo “<br /><br />”;
$customers = file(“customers.txt”);
foreach($customers as $customer)
{
list($name,$street,$city,$state) = explode(“,”,$customer);
$state = trim($state);
echo “$name $street $city $state”;
echo “<br /><br />”;
}
?>
</body>
</html>
In this video tutorial I’ll show you how to use arrays using the PHP programming language.
Specifically I cover: