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bots, 118, 121, 288, 312
<br> tags, 34, 35–36
brightening images, 69
browsers
mobile, 170–174
web. See web browsers
bulletin board (BB) code, 134–137
Bypass Captcha plug-in, 312–314
C
calculator functionality, 112–114
capitalizing text, 37–39
Caps Control plug-in, 37–39
Caps Lock key, 37–39
Captcha test
bypassing, 312–314
creating, 118–122
verifying, 122–124
cast statement, 48
catch statement, 279
CDATA (character data), 257, 261, 266
CentOS Linux, 16–17
character data (CDATA), 257, 261, 266
charts, 236–240
chat facilities
auto scrolling, 189–193

displaying messages, 181–183, 189–193
posting messages, 183–189
predictive technology, 304–308
private messages, 187–191
text speak acronyms, 203–206
Check Captcha plug-in, 122–124
Check Links plug-in, 92–95, 142–144
client URL. See CURL entries
Close Session plug-in, 225–226
code
HTML. See HTML code
PHP. See PHP code
scope, 29–30
Command Line Client, 211
companion web site, 51, 320
compression, 77, 79
content management, 87–110
absolute URLs, 88–90
copyright messages, 100–101
displaying lists, 103–105
embedded YouTube video, 101–103
extracting links from URLs, 90–92
hit counters, 105–107
listing directories, 95–97
query highlighting, 98–100
referring pages, 98–99, 108–110
relative URLs, 88–90
verifying web site links, 92–95
contrast, 69
Convert Currency plug-in, 272–275

cookies
blocking users by, 230–233
deleting, 230
described, 228
managing, 228–230
copyright messages, 100–101
Corner Gif plug-in, 327–330
count() function, 106
Count Tail plug-in, 47–49
country, determining, 310–312
Create Captcha plug-in, 118–122
Create Google Chart plug-in, 236–240
Create List plug-in, 103–105
Create Session plug-in, 221–223
Create Short URL plug-in, 148–151
CREATE TABLE command, 210
credit card validatation, 114–117
cropping images, 71–73
Curl Get Contents plug-in, 241–243
curl_close() function, 195, 242
curl_exec() function, 195, 242
curl_init() function, 242
CURLOP_POST option, 195
CURLOP_POSTFIELDS option, 195, 197
CURLOPT_RETURNTRANSFER option, 195
CURLOPT_URL option, 242
CURLOPT_USERAGENT option, 195, 242
CURLOPT_USERPWD option, 195
CURLOP_URL option, 195, 242
curl_setopt() function, 242

currency conversions, 272–275
D
darkening images, 69
databases. See MySQL
date() function, 255, 262, 266
I n d e x
337
I n d e x
337
dates
copyright messages, 100–101
expiration, 114–115
expiry (cookies), 226, 229
“friendly” display of, 47–49
Debian Linux, 12–14. See also Linux systems
delay counter, 296
diacritic characters, 55–56
dictionary file, 52, 54, 303–304, 318–324
die() function, 77, 158, 192, 213
directories, listing, 95–97
Directory List plug-in, 95–97
disk, saving images to, 64, 78–80
Display Bing Map plug-in, 332–334
display property, 291
<div> tags, 280, 284, 291, 292, 333
Document Object Model (DOM), 91, 164,
250, 281, 285
document root
Linux systems, 16, 17
Mac systems, 20, 24

Windows systems, 12
DOM (Document Object Model), 91, 164,
250, 281, 285
E
echo statements, 162, 183
e-mail
page change notification, 162
protecting, 287–289
sending, 131–134
spam detection, 130–131
validating addresses, 128–130
e-mail harvesting programs, 287
Embed YouTube Video plug-in, 101–103
embossing images, 69
emoticons, 200–203
error messages. See also warnings
generating, 124–128
suppressing, 91, 250, 266
Zend Server CE, 25
eval() function, 112–114
Evaluate Expression plug-in, 112–114
exclusive locks, 180
explode() function
Caps Control plug-in, 38
Convert Currency plug-in, 274
Get Guestbook plug-in, 182
Get Yahoo! Stock News plug-in, 261
Page Updated? plug-in, 160
Post to Chat plug-in, 186
Referer Log plug-in, 109

Spell Check plug-in, 52
Suggest Spelling plug-in, 321
Wrap Text plug-in, 35
expressions, evaluating, 112–114
F
Facebook, 176, 280–284
FAT (file allocation table), 180
Fedora Linux, 14, 16–17
Fetch Flickr Stream plug-in, 249–251
Fetch Wiki Page plug-in, 243–248
file allocation table (FAT), 180
file_get_contents() function
Curl Get Contents plug-in, 241, 242
Fetch Flickr Stream plug-in, 250
Get Yahoo! Answers plug-in, 253
Get Yahoo! News plug-in, 266
Get Yahoo! Stock News plug-in, 261
Google Translate plug-in, 325
Post Ajax Request plug-in, 284
Search Google Books plug-in, 270
Search Yahoo! plug-in, 257
Send Tweet plug-in, 195
file_put_contents() function, 149, 185
files. See also HTML files; PHP files
.htaccess, 152–153
included, 28–32
not found, 29
required, 29
uploading, 60–64
Flickr image streams, 249–251, 295–299

flock() function, 106, 109, 180
flood control, 178–179, 185–187
flush() function, 191
fonts
TrueType, 80–83, 118, 120–121
web browsers and, 80–83
fopen() function, 180
foreach loop, 35, 322
forms
BB code, 134–137
Captcha test, 118–124

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forms (cont.)
evaluating expressions, 112–114
plug-ins for. See plug-ins, forms/
user content
predicting words, 304–308
prompting input on, 299–302
sending e-mail, 131–134
spam detection, 130–131
user input in. See user input
validating credit cards, 114–117
validating e-mail addresses, 128–130
validating text in, 124–128
Friendly Text plug-in, 39–43

fseek() command, 186
fwrite() function, 180
G
GD images, 60, 65, 80, 236–240
GD library, 60, 80
Get Ajax Request plug-in, 285–287
Get Amazon Sales Rank plug-in, 316–318
Get Country by IP plug-in, 310–312
Get Guestbook plug-in, 181–183
Get Links from URL plug-in, 90–92
GET request, 139, 238, 280, 285–286
Get Title from URL plug-in, 144–145
Get Tweets plug-in, 198–200
Get User from DB plug-in, 214–216
Get Yahoo! Answers plug-in, 252–255
Get Yahoo! News plug-in, 264–268
Get Yahoo! Stock News plug-in, 259–264
get_file_contents() function, 145
GFDL (GNU Free Documentation
License), 243
GIF images
Captcha, 120, 123–124
converting to/from different formats,
78–80
converting TrueType fonts to, 80–83,
118, 120–121
corner, 327–330
displaying, 76–78
edge, 327–330
quality setting, 80

rounded corners, 330–332
smileys, 200–203
Gif Text plug-in, 80–83
glob() function, 124
global keyword, 29–30
global scope, 29–30
GNU Free Documentation License
(GFDL), 243
Google AdSense, 32
Google Analytics, 10
Google Books, 268–272
Google Charts, 236–240
Google search engine, 256–259
Google Translate plug-in,
324–327
GRANT command, 212
grayscale images, 69
Guestbook feature, 178–183
H
Hash Code, 137–140
hash tokens, 120
header() function, 152
Hit Counter plug-in, 105–107
hit counters, 105–107
hotspots, 293–294
.htaccess files, 152–153
HTML code
converting RSS to, 168–170
converting to RSS, 163–167
correct insertion of tags, 31

enhancing for mobile browsers,
170–174
including, 31–32
inserting, 31–32
for lists, 103–105
HTML files. See also files
including, 31–32
inserting, 31–32
inserting snippits from, 31
Linux systems, 16, 17
Mac systems, 20, 24
Windows systems, 12
HTML to Mobile plug-in, 170–174
HTML to RSS plug-in, 163–167
htmlentities() function, 136, 139, 219
HTTP requests, 11
I n d e x
339
I n d e x
339
I
IF NOT EXISTS clause, 210
if…else pair, 36
<iframe> tag, 186, 284
IIS (Internet Information Server), 6
Image Alter plug-in, 68–71
Image Convert plug-in, 78–80
Image Crop plug-in, 71–73
Image Display plug-in, 76–78
Image Enlarge plug-in, 73–76

image formats, 78–80
image URLs, 295–299
Image Watermark plug-in, 83–86
ImageAlter() function, 120
imagecopyresampled() function, 72
imagecreatefrompng() function, 238
imagecreatetruecolor() function, 72, 238, 328
imagedestroy() function, 238
imagegif() function, 329
images, 59–86. See also photos
altering, 68–71
aspect ratio, 66
blurring, 69
brightening, 69
Captcha, 118–124
compression, 77, 79
contrast, 69
converting to different formats, 78–80
cropping, 71–73
darkening, 69
displaying, 76–78
edge detection, 69, 70–71
embossing, 69
enlarging, 73–76
Flickr streams, 249–251, 295–299
formats, 76–78
GD, 60, 65, 80, 236–240
GIF. See GIF images
grayscale, 69
increasing red/green/blue, 69

inverting, 69
JPEG. See JPEG images
modifying, 68–71
PNG, 76–80, 85, 238, 239
quality, 66, 76–80
resizing, 64–68, 73–76
saving to disk, 64, 78–80
sharpening, 69
“sketchifying,” 69
slide shows, 295–299
smoothing, 73–76
thumbnail, 66–68
transforming, 68–71
uploading, 60–64
watermarks, 83–86
<img> tag, 173, 297
in_array() function, 149, 152, 179
include command, 28–29
included files, 28–32
included URLs, 32
include_once command, 28–29
indenting paragraphs, 34, 35, 36
INDEX() statement, 210
innerHTML property, 293
input. See user input
Input Prompt plug-in, 299–302
Internet Information Server. See IIS
Internet plug-ins. See plug-ins, Internet
inverting images, 69
IP addresses

banning users via, 230
determining country via, 310–312
determining online presence via, 177
identifying, 106
is_array() function, 143
ISBN numbers, 314–318
isset() function, 229, 238
J
JavaScript. See plug-ins, JavaScript
JavaScript Object Notation (JSON), 287, 325
JPEG images
converting to/from different formats,
78–80
displaying, 76–78
resizing, 65
JSON (JavaScript Object Notation), 287, 325
json_decode() function, 325
L
LAMP packages, 2
language translation, 324–327

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license agreement, Zend Server, 4, 5
links. See also URLs
automatic back links, 145–148
checking, 90–92

extracting from URLs, 90–92
mobile browsers and, 172–173
obtaining from URLs, 90–92
verifying in web sites, 92–95, 142–144
Linux systems
Apache Web Server, 20
CentOS Linux, 16–17
Command Line Client, 212
Debian Linux, 12–14
document root, 16, 17
Fedora Linux, 16–17
HTML files, 16, 17
installing MySQL, 16–17
installing Zend Server, 12–17
passwords, 13, 16
PHP files, 16, 17
RHEL Linux, 16–17
SUSE Linux, 17
Ubuntu Linux, 14
uninstalling Zend Server, 14, 16, 17
list() function, 149, 152, 177
lists
clickable list of words, 302–304
creating, 103–105
drop-down, 320, 323
nested, 246
ordered/unordered, 246
load() function, 296
LOCK_EX parameter, 180
LOCK_UN parameter, 180

Luhn, Hans Peter, 115
Luhn algorithm, 116
M
Mac systems
Apache Web Server, 22, 23
Command Line Client, 212
passwords, 18–19, 20, 21, 22
Mac systems, Intel
document root, 20
HTML files, 20
installing Zend Server, 18–21
PHP files, 20
uninstalling Zend Server, 21
Mac systems, Power PC
document root, 24
HTML files, 24
installing Zend Server, 21–24
PHP files, 24
Magic Quotes setting, 220
mail() function, 131–134
Make Thumbnail plug-in, 66–68
MAMP packages, 2
MAMP program, installing, 21–24
Manage Cookie plug-in, 228–230
map display, 332–334
mathematical operators, 113–114
md5() checksum, 160
md5() function, 119, 210–211
messaging. See chat facilities
Microsoft Virtual Earth, 332–334

Microsoft.XMLHTTP object, 279
mobile browsers, 170–174
mobile phones, 304–308
mod curl facility, 195
Mod Curl library extension, 242
mod rewrite facility, 150, 152, 153
modulus 10 algorithm, 115
mouseover events, 292–294
Msxm12.XMLHTTP object, 279
MySQL
adding users, 208–214
case sensitivity, 211
getting users from, 214–216
installing from tarball, 17
installing on Linux, 16–17
passwords, 210, 216–217
sanitizing strings, 219–221
verifying users in, 216–218
MySQL plug-ins, 208–221
MySQL Sanitize String plug-in, 219–221
MySQL Server, 6, 16, 22
mysql_num_rows() function, 210, 215
mysql_query() function, 210, 211, 215
mysql_real_escape_string() function, 220
N
\n (newline) character, 35, 179
Network File System (NFS), 180