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$HTTP_FILES_VARS
built-in array, 124
$HTTP_GET_VARS
built-in array, 124
$HTTP_POST_VARS
built-in array, 124
HTTPS server, cURL extension for, 306
https
, URL prefixed with, 202
$HTTP_SERVER_VARS
built-in array, 124
$HTTP_SESSION_VARS
built-in array, 124
hyperlinks. Seelinks, HTML
hyphen (-), 90, 135, 214
hyphen, right angle bracket (->), 190–191
• I •
IBM DB2. SeeDB2 databases
icons used in this book, 5
iconv extension, 307
IDE (Integrated Development
Environment), 33–34, 329
identifiers. Seevariables, naming
if
statement, 37, 140–143
IIS/PWS Web server
configuring on Windows, 350, 352
definition of, 16
PHP used with, 15
SSL and, 203
Web space, default for, 28
IMAP extension, 307
implode
function, 111–112, 121, 357, 371
in_array
function, 357
.inc
file extension, 158
include directory, 161–162
include
statement, 158–160, 203, 325, 342
include_once
statement, 159
include_path
setting, in
php.ini
file, 161
including files, 158–162
increment operator (++), 78–79
indenting statements, 37
index of an array. Seekeys of an array
index.htm
file, 21
index.html
file, 21, 201
inequality operator (<>), 131
inequality operator (!=), 131
inequality operator (!==), 131
infinite loops, avoiding, 151, 153–154, 156
Informix databases, 12, 260, 263
Ingres databases, 12, 260, 263
inheritance, 180–181
ini_get
function, 369
ini_set
function, 161, 369
INSERT INTO
query, 266
installation
of extensions, 305
of PEAR packages, 313–314
of PHP, 26–27, 333–343, 345–349
of server, 25–26
(int)
, type casting to integer, 75
integer data types, 73, 75–80, 89–92
Integrated Development Environment.
SeeIDE
InterBase databases, 12
iPlanet Web server, 15
is_array
function, 133
is_dir
function, 280, 283, 363
is_executable
function, 280
is_file
function, 280, 363
is_float
function, 133
is_int
function, 133
is_null
function, 133
is_numeric
function, 133
is_readable
function, 281, 364
isset
function, 133, 376
is_string
function, 133
is_uploaded_file
function, 364
is_writable
function, 281, 364
italic font used in this book, 2
• J •
Japanese characters, extension for, 307
JAVA extension, 307
JavaScript, 11, 12, 244–246
JavaScript For Dummies(Vander Veer), 244
• K •
key
function, 107, 357
key_exists
function, 357
keys of an array, 98–99. See alsoarrays
keywords, 63
Komodo software, 34
krsort
function, 105, 357
ksort
function, 105, 357
384
PHP 5 For Dummies
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