Specifications

naming functions
842
N
naming functions,
133-134
naming conventions,
code, 463
function names, 464
modular names, 464
variable names, 463-464
Natural Order String
Comparison Web site,
105
navigating
files, 64
within an array, 88-89
NET START MySQL
command, 794
Netscape Web site
cookie specification, 432
SSL 3.0 Specification, 347
network lookup func-
tions, 374-378
checkdnsrr(), 378
explode(), 377
gethostbyaddr(), 377
gethostbyname(), 376-377
getmxrr(), 376-378
parse_url(), 377
network services,
connecting, 484-485
New York Times Web site,
304
newbooks.txt file, 263
newline control sequence
(\n), 58
newsletters, online, 656
account settings, 689
accounts, creating,
673-675
administrative functions,
692
attachments, 658
databases, setting up, 660-
663
diagrams, 658-660
file upload, 657
HTML version, 658
list archives, viewing,
686-687
lists, creating, 693-695
lists, viewing, 679-686
logging in, 675-678
logging out, 691
login, implementing,
672-675
passwords, 689-691
plain text, 658
previewing, 702-703
requirements, 656-657
script architecture,
663-672
sending messages,
704-708
subscribing, 687-689
unsubscribing, 687-689
uploading, 695-702
next() function, 88
nl2br() function, 97
nodes (Web forum tree
structure), 713
child nodes, 714
leaf nodes, 714
parent nodes, 714
root nodes, 714
NOT NULL keyword, 196
notify password()
function, 523
null values, avoiding
(Web databases),
179-180
number_of_accounts()
function, 637
numeric column types,
201-202
floating point data types,
201-202
integral data types, 201
numerical position of sub-
strings, finding, 107-108
numerically indexed
arrays, 71-73
accessing with loops, 73
contents, accessing, 72
initializing, 71-72
O
object-oriented (OO)
development, 148-150
attributes, 148
class attributes,
152-154
creating, 151
classes, 149
creating, 150-152
designing, 158-159
instantiation, 152
constructors, 151-152
encapsulation, 148
inheritance, 150, 155-156
multiple inheritance,
157-158
overriding, 156-157
operations, 148
calling class opera-
tions, 154-155
creating, 151
polymorphism, 149-150
writing code, 159-168
attributes, 159-160
functions, 160-161
meta tags, 160
operations, 161
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