Enter your Sign on user name and password.

Forgot password?
Sign In | Subscribe
Start learning today, and be successful in your academic & professional career. Start Today!
Use Chrome browser to play professor video
Matthew M.

Matthew M.

Web Application Development

Slide Duration:

Table of Contents

I. Advanced PHP with MySQL
Course Introduction

13m 36s

Intro
0:00
Advanced PHP w/ MySQL
0:13
Course Introduction
0:14
Course Content
0:59
Web Application: Educator Store
1:45
Web Application: Educator Store
1:46
Object-Oriented Programming
6:09
Object-Oriented Programming Overview
6:10
MySQL
6:50
MySQL Overview
6:51
Example: Command Prompt & MySQL
8:34
What You Will Learn
9:34
What You Will Learn
9:35
Course Prerequisites
11:52
Course Prerequisites
11:53
Advanced Course Development Environment

18m 46s

Intro
0:00
Lesson Overview
0:11
Lesson Overview
0:12
Development Environment Setup
1:36
Firefox Web Browser, XAMPP, and PSPad Text Editor
1:37
Course Directory Structure
4:36
Course Directory Structure
4:37
phpDocumentor
7:23
phpDocumentor Overview
7:24
Parsing Source Code
7:44
docs Subdirectory
9:06
Asvanced PHP Course Documentation Example
10:21
Previous Educator PHP Students
14:14
Lib Directory Changes
14:38
Images Directory Changes
14:57
VERSION Constant
15:40
Comments Noting a Specific Version Number
17:04
Homework Challenge
17:30
Homework Challenge
17:31
Introduction to File I/O

35m 37s

Intro
0:00
Lesson Overview
0:10
Lesson Overview
0:11
File I/O
1:34
File I/O Overview
1:35
Performing file I/O: 3 Steps
1:52
File Permissions
2:28
Read Permission & Write Permission
2:29
fopen()
4:47
fopen()
4:48
Two Required Parameters
5:01
Successful fopen(): File Handle and Resource
5:21
FALSE and E_WARNING Error
6:00
Example
6:39
File Paths
7:10
File Paths
7:11
File Access Modes
9:18
File Access Modes
9:19
Coding Example: fopen()
10:31
Using Relative and Absolute Path & Non-Existent File
10:32
File Pointers
15:55
File Pointers
15:56
Example File
16:11
Opening a File with fopen() Using 'r' as the Access Mode
16:22
fgets()
17:55
fgets() Overview
17:56
Coding Example: fgets() - Reading a Line at a Time
18:26
feof()
20:10
feof() Overview
20:09
Coding Example: feof()
20:50
fclose()
23:43
fclose() Overview
23:44
Coding Example: fclose()
25:02
Coding Example: Current Stock
26:10
Coding Example: Current Stock
26:11
trim ()
31:39
trim () Overview and Example
31:40
Homework Challenge
33:35
Homework Challenge
33:36
Web Application Development

36m 36s

Intro
0:00
Lesson Overview
0:16
Lesson Overview
0:17
Version 1.0 Changelog
0:31
catalog.php
0:32
Function Library: fileLIB.php
5:00
Version 1.1 Changelog
27:12
createItemDataArray() and createDeptDataArray()
27:13
outputSimpleItemLink() and outputSimpleDeptLink()
32:06
HTTP & the POST Method

34m 36s

Intro
0:00
Lesson Overview
0:10
Lesson Overview
0:11
HTTP Model
1:28
HTTP Model
1:29
Client-Server Model 2 Steps Process
2:00
HTTP Messages
2:23
HTTP Messages
2:24
HTTP Requests
3:09
HTTP Requests
3:10
Example: HTTP Request Header
3:17
Coding Example: HTTP Requests
4:29
HTTP Responses
7:15
HTTP Responses
7:16
Example: HTTP Response (Header & Body)
8:00
header()
11:47
header() Overview
11:48
Coding Example: header
14:02
Coding Example: header() Error
14:52
GET Method
18:55
GET Method
18:56
Coding Example: GET Method
20:13
POST Method
21:09
POST Method
21:10
Coding Example: Sample Form Using the POST Method
23:50
Accessing POST Data in PHP
26:38
Accessing POST Data in PHP
26:39
Coding Example: Accessing POST Data via $_POST
28:15
GET vs. POST
29:54
GET vs. POST
29:55
Example: Accessing POST Data via $_POST
31:20
Example: Accessing POST Data via $_POST
31:21
Homework Challenge
33:00
Homework Challenge
33:01
Web Application Development

14m 11s

Intro
0:00
Version 2.0 Changelog
0:09
Updating the Site's Current Form to Use the POST Method
0:10
Creating Admin Website
2:55
Dynamically Generated Department List
12:40
Writing to Files

17m 38s

Intro
0:00
Lesson Overview
0:09
Lesson Overview
0:10
Review of File I/O
0:40
Review of File I/O
0:41
fwrite()
1:38
fwrite()
1:39
fputs()
2:20
'r+'
2:31
Coding Example: fwrite()
2:59
fopen() Access Modes
8:41
'a' and 'a+'
8:42
'w' and 'w+'
11:34
Homework Challenge
14:47
Homework Challenge
14:48
Web Application Development

28m 14s

Intro
0:00
Lesson Overview
0:08
Lesson Overview
0:09
Updated Open File Functions
0:19
openItemsDataFile ( ), openDeptsDataFile ( ), and openLastAddedFile ( )
0:20
insertItem()
6:25
insertItem() Overview
6:26
Functions: createItemDataString ( ) and updateLastItemAdded ( )
7:07
addItemToDepartment ()
16:03
addItemToDepartment () Overview
16:04
Functions: createDeptDataString ( ) and updateDepartment ( )
17:55
HTTP POST: File Uploads

22m 51s

Intro
0:00
Lesson Overview
0:10
Lesson Overview
0:11
POST Data Encoding
1:13
POST Data Encoding
1:14
When Data is Included in the Body of the HTTP POST Request and is of the Content Type
1:31
When Uploading Files Using HTTP POST
3:17
Uploading Files
6:22
Uploading Files
6:23
If Encoding Type is Not Set to Multipart/Formdata
9:27
$_FILES Superglobal
10:59
$_FILES Superglobal
11:00
Structure of $_FILES
12:15
Structure of $_FILES: Name, Type, tmp_name, Error, and Size
12:16
Coding Example: $_FILES Superglobal
13:34
Moving an Uploaded File
15:39
Introduction to Moving an Uploaded File
15:40
move_uploaded_file ( ): Definition and Example
16:40
Homework Challenge
21:19
Homework Challenge
21:20
Web Application Development

15m 30s

Intro
0:00
Lesson Overview
0:09
Lesson Overview
0:10
Uploading Item Image File
1:22
Uploading Item Image File
1:23
Uploading Item Image File (cont.)
2:43
Altering insertItem ( )
2:44
Helpfer Functions: getFileExtension ( ) and moveUploadedFile ( )
4:30
isValidItem ( )
13:03
Introduction to Object-Oriented Programming

32m 44s

Intro
0:00
Lesson Overview
0:11
Lesson Overview
0:12
Object-Oriented Programming
0:56
Introduction to Object-Oriented Programming
0:57
Associative Arrays
5:27
Associative Arrays
5:28
Classes
7:27
Classes Overview
7:28
Defining Classes
8:24
Defining Classes
8:25
Declaring Class Properties
9:25
Coding Example: Classes
10:11
Objects
12:18
Objects Overview
12:19
Classes vs. Objects
12:49
Classes vs. Objects
12:50
Instantiating Classes
14:58
Instantiating Classes
14:59
Coding Example: Instantiate an Item Object
16:30
Object Properties
19:21
Access and Set an Object's Property
19:22
Coding Example: Set & Access the Properties of an Item Object
24:23
Homework Challenge
30:22
Homework Challenge
30:23
Web Application Development

17m 47s

Intro
0:00
Lesson Overview
0:11
Lesson Overview
0:12
Version 5.0 Overview
0:50
Version 5.0 Overview and Examples
0:51
Outputting Object Properties
12:38
Outputting Object Properties
12:39
Array Object Properties
14:18
Access and Set Array Value
14:19
Object Methods

39m 57s

Intro
0:00
Lesson Overview
0:12
Lesson Overview
0:13
Object Methods
0:52
Definition of Object Methods
0:53
Calling Object Methods
3:25
Calling Object Methods
3:26
Coding Example: Simple Object Methods
4:44
Object Methods and Return Values
7:02
$this Variable
10:06
$this Variable: Definition and Example
10:07
$this Variable (cont.)
15:51
$this Variable (cont.)
15:52
Getters & Setters
21:21
Getters & Setters Methods
21:22
Object Methods In Strings
25:46
Object Methods In Strings
25:47
Coding Example: Outputting Method Return Values in Strings
27:41
Using $this to Call Other Methods
28:49
Using $this to Call Other Methods
28:50
Homework Challenge
34:18
Homework Challenge: 1-3
34:19
Homework Challenge (cont.)
36:20
Homework Challenge: 4-6
36:21
Homework Challenge (cont.)
37:52
Homework Challenge: 7-10
37:53
Web Application Development

17m 30s

Intro
0:00
Lesson Overview
0:11
Lesson Overview
0:12
Version 6.0 Overview
0:40
Version 6.0 Changes & Examples
0:41
Item Methods
0:53
Item Class Definition: getImageFilename()
0:54
Coding Example: getImageFilename()
1:58
Department Methods
7:33
addItem(), removeItem(), and isItemInDept() Method
7:34
addItemtToDepartment() & buildDeptObject() Functions
11:46
A Default Value Needed to Be Set for $items
16:26
Object Constructors

22m 20s

Intro
0:00
Lesson Overview
0:11
Lesson Overview
0:12
Object Constructors
0:32
Introduction to Object Constructors
0:33
Coding Example: Object Constructors
1:43
Defining Constructors
3:26
Defining Constructors
3:27
Coding Example: Constructors with No Arguments
4:24
Constructor Arguments
8:09
Constructor Arguments
8:10
Coding Example: Constructor Arguments
9:49
Important Notes
16:13
Important Notes
16:14
Homework Challenge
17:35
Homework Challenge: 1 - 4
17:36
Homework Challenge (cont.)
19:13
Homework Challenge: 5 - 9
19:14
Homework Challenge (cont.)
21:40
Homework Challenge: 10 and 11
21:41
Web Application Development

16m 19s

Intro
0:00
Lesson Overview
0:11
Lesson Overview
0:12
Version 7.0 Overview
0:39
Version 7.0 Overview
0:40
Item Constructor
2:19
Item Constructor
2:20
Department Constructor
7:47
Department Constructor
7:48
Customer Constructor
12:23
Customer Constructor
12:24
More Magic Methods

53m 37s

Intro
0:00
Lesson Overview
0:13
Lesson Overview
0:14
Magic Methods
1:12
Magic Methods
1:13
Destructors
2:45
Destructors Overview
2:46
Coding Example: Calling Destructors
4:30
Coding Example: Object Destructor
9:19
_to String ()
16:12
_to String () Overview
16:13
Coding Example: _to String () Magic Method
18:10
Access Modifiers
21:23
Introduction to Access Modifiers
21:24
Access Modifiers: Public
21:39
Access Modifiers: Private
22:18
Access Modifiers: Protected
22:41
Object Properties and Methods
23:06
Coding Example: Public Access Modifiers
26:48
Coding Example: Private Access Modifiers
28:30
_get()
31:37
_get() Overview
31:38
Coding Example: _get () Magic Method
33:30
_set ()
36:23
_set () & the Magic Method
36:24
Using Getters & Setters
44:37
Coding Example: Using Getters & Setters
44:38
Homework Challenge
50:33
Homework Challenge: 1 - 6
50:34
Homework Challenge (cont.)
51:41
Homework Challenge: 7 - 12
51:42
Web Application Development

31m 12s

Intro
0:00
Version 8.0 Review
0:12
Version 8.0 Review
0:13
private Object Properties
1:15
private Object Properties
1:16
Coding Example
2:54
_toString() Methods
6:51
_toString() Methods
6:52
Coding Example
8:09
DataFile Class
13:27
DataFile Class & I/O Operations
13:28
Using DataFile Class: Instantiate a DataFile, DataFile open () Method, and DataFile close () Method
18:09
Homework Challenge
29:35
Homework Challenge
29:36
Classes vs. Objects

37m 49s

Intro
0:00
Lesson Overview
0:09
Lesson Overview
0:10
Class vs. Object Review
0:58
Class vs. Object Review
0:59
Static Properties
2:42
Static Properties
2:43
Scope Resolution Operator (::)
5:26
Scope Resolution Operator (::) & Static Property
5:27
Coding Example: Accessing a Static Property Using the Scope Resolution Operator
7:57
Coding Example: Accessing a Static Property in a Class Definition
10:33
Coding Example: Using a Static Property as an Instance Counter
14:18
Static Methods
18:51
Static Methods Overview
18:52
Coding Example: Static Methods
21:39
Classes vs. Objects
26:28
Classes vs. Objects: Diagrams
26:29
Class Constants
30:24
Class Constants Definition
30:25
Coding Example: Using Class Constants
31:55
Homework Challenge
34:01
Homework Challenge: 1 - 5
34:02
Homework Challenge (cont.)
35:25
Homework Challenge: 6 - 10
35:26
Web Application Development

21m 7s

Intro
0:00
Version 9.0 Overview
0:12
Version 9.0 Changes & Examples
0:13
Output Class
1:08
Output Class & Static Methods
1:09
outputHtmlSelector ( ) Method
2:43
outputItemSelector ( ) Method
4:53
outputDeptSelector ( ) Method
6:42
buildObject() Methods
11:54
buildObject() Methods & Examples
11:55
Exceptions

22m 43s

Intro
0:00
Lesson Overview
0:12
Lesson Overview
0:13
try Blocks
0:44
try Blocks Definition
0:45
catch Blocks
2:03
catch Blocks: Definition and Syntax
2:04
Coding Example: try/catch Blocks
3:48
When an Exception Object is Caught & Error Handling
5:59
Exception Class
7:02
Exception Class
7:03
Coding Example: Using try/catch to Catch an Exception Thrown from a Method
8:04
Re-Throwing Exceptions
16:39
Re-Throwing Exceptions
16:40
Coding Example: Re-throwing an Exception
17:21
Homework Challenge
20:40
Homework Challenge: 1 - 5
20:41
Homework Challenge (cont.)
22:17
Homework Challenge: 6
22:18
Web Application Development

22m

Intro
0:00
Version 10.0 Overview
0:11
Updating addItem.php, addItemToDept.php, and error.php
0:12
Updating DataFile Class: open ( ) Method & try/catch blocks
7:45
Version 10.1 Overview
13:37
Version 10.1 Changes & Examples
13:38
Updating DataFile Class: close ( ) Method & logWarning ( )
20:17
Cookies

39m 47s

Intro
0:00
Lesson Overview
0:09
Lesson Overview
0:10
What is a Cookie?
1:15
Definition of Cookie
1:16
HTTP - A Stateless Protocol
2:17
HTTP - A Stateless Protocol
2:18
Purpose of Cookies
4:10
Set - Cookie Header
6:21
Introduction to Set - Cookie Header
6:22
Coding Example: Set - Cookie Header
7:38
Cookie Header
9:45
Introduction to Cookie Header
9:46
Example: Cookie Header
10:27
setcookie()
12:33
Introduction to setcookie()
12:34
Example: Using setcookie
13:54
Cookies Attributes
15:48
Cookies Attributes Overview
15:49
Common Cookies Attributes: Domain
16:24
Common Cookies Attributes: Path
17:04
Common Cookies Attributes: Expires
19:34
Coding Example: Setting Cookie Attributes
20:58
$_COOKIE Superglobal
27:03
$_COOKIE Superglobal
27:04
Coding Example: Accessing Cookies from PHP Using $_COOKIE
29:45
Security Implications
34:44
Security Implications
34:45
Homework Challenge
36:10
Homework Challenge: 1 - 4
36:11
Homework Challenge (cont.)
37:47
Homework Challenge: 5 - 7
37:48
Web Application Development

39m 11s

Intro
0:00
Lesson Overview
0:17
Lesson Overview
0:18
instanceof Operator
1:34
instanceof Operator
1:35
Objects with Object Properties
2:53
Objects with Object Properties
2:54
Version 11.0 Overview
6:41
Version 11.0 Changes: Cart and CartItem Classes
6:42
Version 11.0 Coding Example
10:40
Version 11.1 Overview
31:03
Version 11.1 Changes & Examples
31:04
Introduction to Sessions

46m 8s

Intro
0:00
Lesson Overview
0:08
Lesson Overview
0:09
What is a Session?
0:53
What is a Session?
0:54
Client-Side Sessions
3:51
Client-Side Sessions
3:52
Server-Side Sessions
5:04
Server-Side Sessions
5:05
Session IDs
6:26
Session IDs
6:27
The SID is Used by the Server to:
7:08
A Client Passes an SID to the Server with Each HTTP Request Via:
8:15
Sessions in PHP
12:19
Sessions in PHP
12:20
session_start()
14:40
session_start() Overview
14:41
Coding Example: Using session_start () to Continue a Session
18:03
$_SESSION Superglobal
22:06
$_SESSION Superglobal Overview
22:07
Coding Example: Setting a Session Variable via $_SESSION
25:22
Accessing Session Data
28:08
Accessing Session Data
28:09
Deleting Session Data
31:43
Deleting Session Data
31:44
Coding Example: Deleting Session Data
32:16
Configuring PHP Sessions
36:14
session.cookie_lifetime, session.cookie_domain, and session.cookie_path
36:15
Coding Example: Configuring PHP Sessions
37:28
Configuring PHP Sessions (cont.)
40:56
session.use_cookies, session.use_trans_sid, and session.use_only_cookies
40:57
Coding Example: Configuring PHP Sessions
42:25
Homework Challenge
42:55
Homework Challenge: 1 - 5
42:56
Homework Challenge (cont.)
44:10
Homework Challenge: 6 - 10
44:11
Homework Challenge (cont.)
45:27
Homework Challenge: 11 - 13
45:28
Web Application Development

11m

Intro
0:00
Version 12.0 Overview
0:12
Version 12.0 Changes Part I: Updating 'viewCart.php' & 'checkout.php'
0:13
Version 12.0 Changes Part II
5:03
Destroying Sessions

29m 59s

Intro
0:00
Lesson Overview
0:12
Lesson Overview
0:13
Destroying Sessions
1:02
Destroying Sessions
1:03
session_destroy()
2:10
session_destroy() Overview
2:11
Coding Example: Setting a Session Variable and Destroying a Session
3:18
Deleting Session Cookies
8:38
Deleting Session Cookies
8:39
Coding example: Deleting Session Cookies
9:17
Review of Steps
21:07
Review of Steps
21:08
Garbage Collection
21:50
Garbage Collection Overview
21:51
Coding Example: Garbage Collection
24:30
Homework Challenge
26:28
Homework Challenge: 1 - 4
26:29
Homework Challenge (cont.)
28:16
Homework Challenge: 5 - 9
28:17
Web Application Development

19m 14s

Intro
0:00
Lesson Overview
0:13
Lesson Overview
0:14
_autoload()
0:46
Introduction to _autoload ()
0:47
Version 13.0 Overview
4:06
_autoload () and SessionManager Class
4:07
Updating 'viewCart.php' & 'checkout.php'
11:16
Introduction to Databases

21m 24s

Intro
0:00
Lesson Overview
0:16
Lesson Overview
0:17
Flat Files
1:09
Flat Files: Definition and Example
1:10
Problems Associated with Using Flat Files as a Database
2:15
Relational Databases
3:29
Relational Databases
3:30
Relational Database Management System (RDBMS)
3:50
Tables
7:43
Tables
7:44
Columns
9:24
Columns
9:25
What is SQL?
10:45
Introduction to Structured Query Language
10:46
Standard Data Types of SQL
12:23
Primary Keys
13:19
Primary Keys
13:20
Primary Key Examples
16:36
Primary Key Examples
16:37
Introduction to MySQL

28m 11s

Intro
0:00
Lesson Overview
0:11
Lesson Overview
0:12
What is MySQL?
1:33
MySQL
1:34
MySQL Monitor
5:16
MySQL Monitor Overview
5:17
XAMPP & MySQL
5:58
In the MySQL Command: hostname, username and -p
7:05
Connecting to a MySQl Server
9:52
Connecting to a MySQl Server
9:53
Using MySQl Monitor
13:48
Using MySQl Monitor
13:49
GRANT Command
15:10
GRANT SQL Command
15:11
Privileges & Objects
18:18
Username, Hostname, and Password
19:37
Specifying Objects
20:05
Creating a PHP User Account
21:41
Creating a PHP User Account Overview
21:42
Meaning of all & *.*
23:35
Example: Creating a PHP User Account
23:48
Required Homework
26:27
Required Homework: 1 - 5
26:28
Required Homework (cont.)
27:28
Required Homework: 6
27:29
Creating Databases & Tables

23m 1s

Intro
0:00
Lesson Overview
0:08
Lesson Overview
0:09
Creating a Database
1:40
Introduction to Creating a Database
1:41
Example: Creating a Database
3:33
CREATE TABLE Command
6:43
CREATE TABLE Command
6:44
Data Types
7:39
Numeric Data Types: INT, INT UNSIGNED, and DECIMAL
7:40
String Data Types: CHAR (M), VARCHAR (M), and TEXT
9:23
Colum Attributes
11:00
PRIMARY KEY Attribute
11:01
AUTO INCREMENT Attribute
11:35
Items Table
13:07
Items Table
13:08
Useful Commands
17:04
SHOW TABLES Command & DESCRIBE Utility Statement
17:05
Example: Creating an Items Table
17:58
Required Homework
20:51
Required Homework: 1 - 6
20:52
Required Homework (cont.)
21:55
Required Homework: 7 - 9
21:56
SQL Command: INSERT

27m 11s

Intro
0:00
Lesson Overview
0:11
Lesson Overview
0:12
INSERT Command
1:20
SQL INSERT Command
1:21
Specifying Values
3:16
Columns with Numeric Data Types
3:17
Columns with String Data Types
3:34
Columns with AUTO INCREMENT
4:07
Inserting Items
5:21
Inserting Items
5:22
Example: Inserting Items
7:03
SQL Text Files
14:04
SQL Monitor Client
14:05
MySQL Monitor & the < Operator
15:15
Example
17:35
Required Homework
22:32
Required Homework: 1 - 6
22:33
Required Homework (cont.)
24:19
Required Homework: 7 - 10
24:20
SQL Command: SELECT

24m 57s

Intro
0:00
Lesson Overview
0:10
Lesson Overview
0:11
SELECT Command
0:42
SELECT Command: Definition and Syntax
0:43
Results of a SELECT Query
1:53
To Specify the Retrieval of All Columns from a Table
3:06
Example: SELECT Command
4:18
WHERE Clause
7:11
WHERE Clause
7:12
A SELECT Query with WHERE Clause has the Following Syntax
8:10
A Where Condition can Contain both Logical and Comparison Operators
9:44
Literal Values
13:24
Literal Values
13:25
Example: Literal Values
14:18
ORDER BY Clause
15:31
ORDER BY Clause & SELECT Query
15:32
Ascending and Descending Order
17:30
An ORDER BY Clause can Specify Multiple Columns to Order the Rows by
18:01
Example: SELECT Query with WHERE and ORDER BY Clause
20:32
Homework Challenge
21:59
Homework Challenge
22:00
Homework Challenge (cont.)
23:54
Homework Challenge
23:55
Using PHP from MySQL

32m 43s

Intro
0:00
Lesson Overview
0:10
Lesson Overview
0:11
PHP/MySQL Architecture
0:56
PHP/MySQL Architecture
0:57
MySQLi Extension
3:05
MySQLi Extension
3:06
Steps to Using MySQL from PHP
5:53
Four Steps to Using MySQL from PHP
5:54
Step # 3
7:18
Connecting to a Database
8:12
To Connect to a MySQL Database
8:13
To Test for Connection Errors
10:20
Running an SQL Statement
11:54
Running an SQL Statement
11:55
Example
13:30
Processing the Results
15:58
For non-SELECT Queries
15:59
MySQLi Object Property: affected_rows
16:19
For INSERT Statements on Tables with an AUTO_INCREMENT Column
18:07
Closing the Connection
19:45
Closing the Connection
19:46
Coding Example
21:24
Coding Example: Using MySQL from PHP
21:25
Homework Challenge
29:00
Homework Challenge: 1 - 4
29:01
Homework Challenge (cont.)
31:10
Homework Challenge: 5 - 9
31:11
Web Application Development

30m 30s

Intro
0:00
Lesson Overview
0:14
Lesson Overview
0:15
sprintf()
1:28
sprintf() Overview
1:29
Example
1:56
INSERT Statements with sprintf()
5:15
INSERT Statements with sprintf()
5:16
Version 14.0 Overview
10:00
Version 14.0 Changes & Examples Part 1
10:01
Version 14.0 Changes & Examples Part 2
21:58
SELECT QUERIES from PHP

24m 22s

Intro
0:00
Lesson Overview
0:14
Lesson Overview
0:15
SELECT Queries
1:21
SELECT Queries
1:22
MySQLi_Result Class
3:17
MySQLi_Result Class: num_rows
3:18
MySQLi_Result Class: fetch_assoc ( ) and fetch_object ( )
3:59
fetch_assoc()
5:17
fetch_assoc() Overview
5:18
Coding Example: Using fetch_assoc()
9:00
stdClass Objects
12:46
stdClass Objects
12:47
fetch_object()
14:19
fetch_object() Overview
14:20
Coding Example: Using fetch_object()
16:45
Freeing Result Set Memory
18:42
Freeing Result Set Memory
18:43
Coding Example: Using free ( )
20:01
Homework Challenge
22:07
Homework Challenge: 1 - 5
22:08
Web Application Development

17m 6s

Intro
0:00
Version 15.0 Overview
0:13
Version 15.0 Changes & Examples Part 1
0:14
Version 15.0 Changes & Examples Part 2
8:43
Linking Tables

24m 32s

Intro
0:00
Lesson Overview
0:16
Lesson Overview
0:17
A Departments Table
1:08
Departments Table
1:09
How Could We Model This in a Table: Option 1
1:26
How Could We Model This in a Table: Option 2
3:12
Database Normalization
4:37
Database Normalization
4:38
Foreign Keys
8:47
Foreign Keys
8:48
Linking Table
11:26
Linking Table
11:27
Multiple Column Primary Keys
15:30
Multiple Column Primary Keys
15:31
Example
18:51
Required Homework
22:34
Required Homework: 1 - 3
22:35
Required Homework (cont.)
24:10
Required Homework: 4
24:11
Web Application Development

24m

Intro
0:00
Version 16.0 Overview
0:11
Version 16.0 Changes
0:12
Version 16.0 Coding Examples
4:12
Version 16.0 (cont.)
18:30
Version 16.0 Changes & Examples Part 2
18:31
SQL Command: DELETE

10m 33s

Intro
0:00
Lesson Overview
0:12
Lesson Overview
0:13
DELETE Statement
0:30
DELETE Statement & Its WHERE Clause
0:31
Delete All Rows From a Table
2:57
Using DELETE from PHP
4:04
Using DELETE from PHP Overview
4:05
Coding Example: Using DELETE from PHP
6:37
Homework Challenge
8:53
Homework Challenge: 1 - 4
8:54
Web Application Development

16m 2s

Intro
0:00
Version 17.0 Overview
0:11
Version 17.0 Changes
0:12
Version 17.0 Coding Example
2:51
Transactions
12:50
Database Transaction
12:51
Steps in Using Transactions
14:00
SQL Command: UPDATE

32m 14s

Intro
0:00
Lesson Overview
0:10
Lesson Overview
0:11
UPDATE Statement
0:54
UPDATE Statement & Its WHERE Clause
0:55
Example: UPDATE Statement
3:32
Using UPDATE from PHP
5:21
Using UPDATE from PHP Overview
5:22
Coding Example: Using UPDATE from PHP
6:53
htmlspecialchars()
9:04
htmlspecialchars()
9:05
Encoding Special Characters
9:23
Coding Example: htmlspecialchars()
13:41
addslashes()
20:40
addslashes()
20:41
Coding Example: addslashes()
22:52
Homework Challenge
27:55
Homework Challenge: 1 - 2
27:56
Homework Challenge (cont.)
30:14
Homework Challenge: 3 - 5
30:15
Homework Challenge (cont.)
30:41
Homework Challenge: 6 - 9
30:42
Web Application Development

12m 33s

Intro
0:00
Version 18.0 Overview
0:12
Version 18.0 Changes
0:13
Version 18.0 Coding Example
1:24
SQL: Joins

42m 16s

Intro
0:00
Lesson Overview
0:11
Lesson Overview
0:12
DATETIME Data Type
1:52
DATETIME Data Type
1:53
Modeling Orders
5:12
Modeling Orders
5:13
Customers Table
10:46
Customers Table
10:47
Example
16:18
Example: Order Table in MySQL
16:19
Joins
22:26
Joins Overview
22:27
Inner Join
23:09
Example: Joins
24:11
Join Conditions
28:14
Join Conditions
28:15
Example
28:32
Join Queries
30:00
Example: Join Conditions in MySQL
30:36
Implicit Joins
34:42
Implicit Joins
34:43
Example: Implicit Joins
35:57
Aliases
37:28
Introduction to Aliases
37:29
Example: Aliases
38:55
Required Homework
40:32
Problem 1
40:33
Problem 2
41:01
Problem 3
41:17
Web Application Development

29m 34s

Intro
0:00
Lesson Overview
0:12
Lesson Overview
0:13
Inserting Orders
0:44
Inserting Orders
0:45
Version 19.0 Overview
3:45
Version 19.0 Changes & Example Part 1
3:46
Version 19.0 Changes & Example Part 2
13:18
Version 19.1 Overview
21:10
Version 19.1 Changes
21:11
Version 19.1 Coding Example
22:18
User Authentication

26m 13s

Intro
0:00
Lesson Overview
0:10
Lesson Overview
0:11
User Authentication
1:31
User Authentication
1:32
Authentication with Sessions
2:34
Authentication with Sessions
2:35
Four Steps in Authentication via Sessions
2:50
Using Sessions to Restrict Access
3:58
Using Sessions to Restrict Access
3:59
Coding Example: Restricted Access Area
4:47
Authentication Methods
5:54
Authentication Methods Overview
5:55
Coding Example: Authentication Methods
7:31
Logging Out
9:57
Logging Out
9:58
Coding Example: Log Out
10:47
Users Table
13:50
Users Table
13:51
Example: Creating a Users Table
15:08
Password Hashing
17:30
Password Hashing
17:31
PHP and MySQL Built-in Hash Functions: sha1 ( ) and md5 ( )
18:43
Coding Example: Password Hashing
19:27
Required Homework
24:41
Required Homework: 1 - 4
24:42
Web Application Development

14m 36s

Intro
0:00
Version 20.0 Overview
0:13
Version 20.0 Changes & Examples Part 1
0:14
Version 20.0 Changes & Examples Part 2
5:05
Version 20.0 Changes & Examples Part 3
7:29
Version 20.0 (cont.)
8:31
Version 20.0 Changes & Examples Part 4
8:32
Loading...
This is a quick preview of the lesson. For full access, please Log In or Sign up.
For more information, please see full course syllabus of Advanced PHP
  • Discussion

  • Download Lecture Slides

  • Table of Contents

  • Transcription

  • Related Services

Start Learning Now

Our free lessons will get you started (Adobe Flash® required).
Get immediate access to our entire library.

Sign up for Educator.com

Membership Overview

  • Unlimited access to our entire library of courses.
  • Search and jump to exactly what you want to learn.
  • *Ask questions and get answers from the community and our teachers!
  • Practice questions with step-by-step solutions.
  • Download lesson files for programming and software training practice.
  • Track your course viewing progress.
  • Download lecture slides for taking notes.
  • Learn at your own pace... anytime, anywhere!

Web Application Development

Lecture Slides are screen-captured images of important points in the lecture. Students can download and print out these lecture slide images to do practice problems as well as take notes while watching the lecture.

  • Intro 0:00
  • Version 15.0 Overview 0:13
    • Version 15.0 Changes & Examples Part 1
    • Version 15.0 Changes & Examples Part 2

Transcription: Web Application Development

Hello again, and welcome back to Educator.com's Advanced PHP with MySQL course.0000

In today's lesson, we are going to be continuing development of our web application,0005

incorporating what we learned in our last lesson on running SELECT queries from within a PHP script.0008

The new version of the web application that we are going to be working with today is version 15.0.0015

And what we are going to be doing is making use of SELECT queries within our DatabaseAccess class,0020

which is a class we created in our last version of the web application that encapsulates all of our access to a MySQL database.0027

We are going to add functionality to that class, so that we are going to be able to run SELECT statements to load items from the database.0034

In our last web application, we learned how to insert items into the database from our admin page.0041

And now, we are going to run some SELECT queries to be able to load items from the database.0046

In our DatabaseAccess class, we have added three public methods.0052

One is called getItem: you pass it an item ID, and it is going to load an item from the MySQL database.0057

It is the same functionality as getItem that we had in fileLIB.php, except that it is loading from a database, rather than items.txt.0064

Similarly, we have getItems, which is going to load an array of all of the items in the database.0072

It is going to run a SELECT query on our Items table, and then create an Item object for each row in that table.0077

Again, that models the behavior that we have had in our getItems function in fileLIB.php.0084

And then, we are also creating an itemExists function, which tests whether an item exists or not in the particular database.0090

You pass it an item ID, and what it is going to do is run a SELECT query.0098

If the query returns a result based on the itemID, then we are going to know that the item exists in our database.0102

One of the things that we are going to make use of in getItem and getItems is...we have also created, or added,0112

a private helper function to this DatabaseAccess class, called buildItemFromRow.0120

And what we are going to be doing is: we learned in our last lesson: when we run a SELECT query,0125

we can call the fetch_object method on the result set object that is returned from running the query.0131

And that is going to take the current row and put it into an object form.0137

It makes it an object of (if you remember) stdClass, which is a basic object in PHP.0144

What we are going to do is: when we fetch a row from our Items database,0152

we are going to be passing that row object to this buildItemFromRow function.0157

And what it is going to do is just build up our Item object.0162

We have an Item object that we have been using all throughout the web application, that has all the data of an item:0165

its ID, its name, its description, and so on.0171

And this is just going to be a function that is going to transfer from a row in the database to an actual Item object.0174

Let's take a look at what our new functions look like.0183

If we look at our DatabaseAccess class in version 15.0, we can see that we have added three new methods: getItem, getItems, and itemExists.0189

I'll blow this up a little more.0198

If we look at our getItem method, we can see that what it does is takes an item ID, and then uses that itemID to create a SELECT query.0200

And we are saying, "Select all of the columns from the Items table where the itemID equals the item ID that we have passed in."0214

And then, we have a debug message that is just going to log our query, to help us debug problems with it.0221

And then, we go ahead and run the SELECT query.0227

And as we learned in our last lesson, this is going to return an object, assuming that there are rows that will be returned, of the MySQLi_Result type.0230

It is going to be a result set object, which is going to get stored in this Result variable.0239

We know that that MySQLi result set object has a property called num_rows, which says the number of rows that were returned as a part of that query.0244

We are going to check to see if the number of rows is, in this case, not equal to 1.0254

If it is not equal to 1, that means that either it was 0, or there was an error--0260

meaning that we have multiple items with that ID in our database, which shouldn't happen, because it is a primary key.0265

If it is not equal to 1, it is going to be 0; we are going to return false.0271

This function is either going to return a built-up item, or it is going to return false if that item doesn't exist in the database.0275

If it does exist, meaning that the number of rows was equal to 1, then we are going to call0281

that buildItemFromRow function that we just talked about in the last slide.0286

And what we are doing is passing it the output of Result (fetch_object).0292

There is only one row in our result set; we are calling the fetch_object method on that result set object,0297

which is going to return a stdClass object, which is going to have all of the columns in our table mapped to properties in that object.0303

And then, we pass it to this buildItemFromRow class.0313

And we won't be able to see that here in the documentation, because it only documents public methods.0316

But if we look at the source code for the file, we will be able to see the private method.0321

And what buildItemFromRow does is simply takes that row object, which, again, is that stdClass that maps each column to a property0327

in that class, and then we just access all of the different properties of that row object0338

and build up an Item object, using the Items constructor.0343

Let's see, that is how our getItem class works.0349

It runs this query that has a WHERE clause that will only select a particular item that is requested from the database.0357

And then, it will run that query and build up an Item object from the row that is returned.0364

The other method that we have is getItems, which is similar, except that we are going to be loading0370

all of the items from the database--all of the items in our Items table.0375

One of the places that we use that is on our addItemToDepartment form; we have a dropdown box0379

that lists all of the different items to add to a department.0383

Well, that dropdown box uses this getItems method to load all of the items from the database.0385

So, we are going to create a query called SELECT* FROM Items, which is going to say, "Give me all of the columns for all of the items in the Items table."0391

And then, we go ahead and run that query.0401

And we perform a test to see if any rows were returned.0403

Maybe we have an Items table that has no items in it so far.0407

So, if items row is not greater than 0, that means it is equal to 0; we are going to return false, just to let0410

whoever calls this method know that there are no items in the table.0418

If it is greater than 0, that means that some rows were returned.0421

What we are going to do is create this indexed array called Items; and we are going to loop over the result set object.0424

And for each row that is returned, we are going to build an Item object and add it to this Items array.0433

So here, we have the construct that we saw in our last lesson, where we have a while loop0439

that calls this fetch_object method continuously until it returns null.0444

And it returns null once it has reached the end of the result set.0449

We store that object temporarily in this variable row.0452

And then, just as we did in the getItem function, we are going to build an Item object from that row.0456

And then, we are going to store it in our Items array.0462

And then, we simply return that Items array to our user.0464

And then finally, the last function, or method, that we have added to this class is an itemExists function.0469

And that makes use of a SELECT query, as well.0476

It makes use of the same SELECT query that we used in getItem; we are saying, "Give me all the columns for an item in the Items table,0478

where the item ID equals" this item ID that was passed in.0491

If we run that query, we are not concerned with the data it returns; we don't care about the name, the price, and all that information.0495

All we want to know is if it returned a result, which means that that item does exist in the database.0501

So, we run that query, and then we just test the number of rows.0506

If the number of rows it returns equals 1, which means that that item was in the database, and it returned one row,0510

we return true; otherwise, we return false.0517

And so, that is how we test for an item in our database.0520

Now, these new functions that we have added--we make use of them in a couple of different files within our web application.0525

Because right now, we haven't set up our departments, but we had our items database stored previously in a flat file called items.txt,0531

and we had our departments information stored in a file called departments.txt,0543

we haven't talked about how to model the departments.txt in our database yet.0547

We aren't implementing any SELECT statements yet for loading departments from the database.0554

So, what we have here is: these are all the scripts that make use of loading items, that load items from the database.0560

The couple of scripts we have are department.php, which, if we look at the department page on our web application,0566

calls getItem when it builds up this table; the Department object for this particular page is going to have an array of item ID's.0579

And then, it is going to go ahead and call this getItem method to load each of these items up.0587

That is how it will be used in Department.php.0591

Item.php--obviously, we are going to be using the getItem method to pull0594

all the information from the database for a particular item, so that we can output it.0598

viewCart.php: when we add items to a cart, it lists them all in the shopping cart table that we have on that page.0603

That is going to make use of the getItem method to be able to load each item, to output it as a row.0612

And then, we also make use of it in output.php, in that we are going to make use of one of these functions in output.php.0619

And in this particular case, in output.php, we have an outputItemSelector, which, if we look at our admin site--0626

on our addItemToDepartment script, we can see that we have this Select box that allows us to select an item in the database.0636

Well, the way that that is built up is by calling the getItems method, that new method in our DatabaseAccess object,0643

which is going to query the database for all of the items.0653

It is going to return an array of those items, so that we can build up this Select box.0655

That is how it is used in output.php, because output.php defines the static method that creates that dropdown box.0661

In addition, on this page addItemToDept.php, if we go and look at the source code for it, we can see0672

that it is going to make use of testing whether an item exists or not.0683

So, it makes use of the itemExists method, as well.0687

Let's take a look at all of these different files that have changed, starting with Item.php.0691

Before, Item.php, when it would try to load an item to view, would call the itemExists method, which was in our fileLIB.php library.0698

And then, if it was a valid item, it would try to load the item, using our getItem method.0707

Well, we have these two replacement methods now in our DatabaseAccess class.0713

So, we are just going to replace these method calls with our new method calls.0717

In our new version of Item.php, we can see that itemExists is called on dba, which is a variable that we created0721

at the beginning of the file, that creates that new DatabaseAccess object that is going to give us access to the MySQL database.0730

And then, we use it in the same way down here, to call the getItem method to load the item from the database.0738

As you can see, up here, we have called the constructor for DatabaseAccess within a try/catch block,0744

because it can throw an exception if there is an error connecting to the database.0751

And if there is an error, we simply log it, and then exit from the script.0755

And this isn't a very graceful way to manage this exception, but it would have added a lot to the code to build a more robust error processing system.0760

So, in order to keep from obscuring what we are trying to learn from the code (which is how to use this database object),0773

we are just going to have it exit; but in the production environment, just so you know,0778

you would want to do something more graceful than simply exiting from the script.0782

But that is what we do with all of these different files that are making use of this DatabaseAccess object.0785

If we look at Department.php, when it loads the table of all the items in a particular department, it calls the getItem method on each item in the particular department.0791

Well, in our new version, at the beginning of the file, we create our DatabaseAccess object.0804

And then, down in the HTML output section, we make use of that DatabaseAccess object0810

stored in the variable dba to call the getItem method to now load our item's information from the database, rather than the text file.0816

Similarly, in viewCart, we have a very similar change.0823

This is the old version of viewCart, and you can see that we call the getItem method, as the getItem method in fileLIB.php.0830

Well, in our new version, we create our DatabaseAccess object, and then we simply call getItem on that DatabaseAccess object to load it from the database.0839

That is how we are making use of these new getItem and itemExists functions.0852

In our addItemToDepartment script, you can see that, when we attempt to add an item to a department,0856

one of the methods that it calls is a test if an item exists or not.0864

And if it does, and it is able to be added, then it loads that item up, calling getItem.0868

Well, we are going to replace that again.0875

We set up our MySQL database; we have a DatabaseAccess constructor call.0877

Now, here we are not going to exit from the script, if it calls it as an error, because we have built in some error processing0885

into our admin scripts, if you remember, that is able to handle exceptions.0891

So, it is already within a try block.0895

Our itemExists function changes to this new dba function, and that is how we are going to test the existence of the item.0898

And we call getItem, using that new getItem method, as well, on our DatabaseAccess object.0906

The one other thing to note is our output class.0914

In our outputItemSelector, we can see now that...actually, let's go to the previous version.0923

We can see that it would load the items up, calling the getItems method in our fileLIB.0936

Well, now what it does is: it is going to create a new DatabaseAccess object to get access to that database.0942

It does so within a try/catch block.0948

In this particular case, if it has an error connecting, it is going to throw the exception,0950

which will be able to be caught in the addItemToDepartment script.0955

And then, it calls our getItems method that we created that is going to load that array of items from our database.0960

If we look back at addItem.php down in the output section, where we call that outputItemSelector method,0966

we simply have a try/catch block that is going to output a message if there is an error accessing the database.0974

Again, this isn't the most graceful method for handling an error.0982

But it simplifies our code to get at what we are trying to learn in this particular lesson.0987

The only other thing to mention about the changes here is that you will notice that this isn't in version 14.0, the last version:0994

we had the functions getItem, getItems, and itemExists in our file library.1002

Well, since we have moved them into our DatabaseAccess class, they no longer exist.1008

And so, we are slowly migrating from a file-based database system into our MySQL database system.1012

That ends today's lesson; thank you for watching Educator.com, and I look forward to seeing you next time.1021

Educator®

Please sign in for full access to this lesson.

Sign-InORCreate Account

Enter your Sign-on user name and password.

Forgot password?

Start Learning Now

Our free lessons will get you started (Adobe Flash® required).
Get immediate access to our entire library.

Sign up for Educator.com

Membership Overview

  • Unlimited access to our entire library of courses.
  • Search and jump to exactly what you want to learn.
  • *Ask questions and get answers from the community and our teachers!
  • Practice questions with step-by-step solutions.
  • Download lesson files for programming and software training practice.
  • Track your course viewing progress.
  • Download lecture slides for taking notes.