The Visibooks Guide To PHP Basics (2006).pdf

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The Visibooks Guide to PHP Basics
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Table of Contents
Learning the Basics ........................................ 1
Install an FTP program ..........................................................................2
Create a simple script ..........................................................................12
Upload a script .....................................................................................18
Run a script from a Web page.............................................................22
Insert comments...................................................................................26
Format output with HTML....................................................................32
Working with Variables................................. 39
Employ single variables ......................................................................41
Print quotation marks ..........................................................................52
Employ lists of variables .....................................................................62
Working with Numbers ................................. 71
Perform calculations............................................................................72
Increment/decrement ...........................................................................75
Generate random numbers .................................................................78
TABLE OF CONTENTS
i
User Functions ..............................................83
Create a user function ......................................................................... 84
Pass form inputs to a script................................................................ 89
Logic & Loops................................................95
Employ conditional logic .................................................................... 96
Employ looping .................................................................................. 118
Working With Files.......................................129
Create a text file ................................................................................. 130
Display files........................................................................................ 137
Append to files................................................................................... 140
ii
TABLE OF CONTENTS
Learning the Basics
In this section, you’ll learn how to:
Install an FTP program
Create a simple script
Upload a script
Run a script from a Web page
Insert comments
Format output with HTML
LEARNING THE BASICS
1
Install an FTP program
1. Open your Web browser and go to:
www.ipswitch.com
2. Download and install WS_FTP Home.
WS_FTP
FTP stands for File Transfer Protocol, a way to transfer files between
computers over the Internet.
Using an FTP program is the most straightforward way to upload a
Web site to a Web server. WS_FTP is the most popular FTP program
used to upload and download Web pages.
The Home version is free to use for 30 days, and can be downloaded
at www.ipswitch.com.
2
LEARNING THE BASICS
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