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u elements: 8.3. Alphabetical Tag Reference (Dynamic HTML)

u objects: 9.6. Alphabetical Object Reference (Dynamic HTML)

9.6. Alphabetical Object Reference (Dynamic HTML)

U pattern modifier: 13.5.2. Solution (PHP Cookbook), quantifiers, converting to/from greedy or nongreedy: 13.5.3. Discussion (PHP Cookbook)

uasort( ): 5.8.1. Sorting One Array at a Time (Programming PHP)

A.3d. Alphabetical Listing of PHP Functions (r-z) (Programming PHP)
2.5.5.4. Sorting with user-defined element comparison (Web Database Applications)

ubound( ) method, VBArray objects: 12.5. Core Objects (Dynamic HTML)

ucfirst( ): 1.7.2. Solution (PHP Cookbook)

4.4.2. Changing Case (Programming PHP)
A.3d. Alphabetical Listing of PHP Functions (r-z) (Programming PHP)

ucwords( ): 1.7.2. Solution (PHP Cookbook)

A.3d. Alphabetical Listing of PHP Functions (r-z) (Programming PHP)

ucwords( ) function: 4.4.2. Changing Case (Programming PHP)

uid( ) (Perl): 15.8. The Perl API (Webmaster in a Nutshell)

UIEvent object: 19.2.5. Event Modules and Event Types (JavaScript)

19.2.6.2. UIEvent (JavaScript)
25. W3C DOM Reference (JavaScript)

UIEvent objects: 9.6. Alphabetical Object Reference (Dynamic HTML)

uksort( ): 5.8.1. Sorting One Array at a Time (Programming PHP)

A.3d. Alphabetical Listing of PHP Functions (r-z) (Programming PHP)

ul elements: 3.2. Understanding Block-Level Elements (Dynamic HTML)

8.3. Alphabetical Tag Reference (Dynamic HTML)

ul objects: 9.6. Alphabetical Object Reference (Dynamic HTML)

umask( ): 19.1. Introduction (PHP Cookbook)

12.4.1. Get It Right the First Time (Programming PHP)
A.3d. Alphabetical Listing of PHP Functions (r-z) (Programming PHP)

umask (permission setting): 19.1. Introduction (PHP Cookbook)

unary not operator: 2.2.3. Conditional Expressions (Web Database Applications)

unary operators: 5.2.1. Number of Operands (JavaScript)

5.2.1. Number of Operands (JavaScript)

2.4.1. Number of Operands (Programming PHP)

- (arithmetic negation) operator: 2.4.5. Arithmetic Operators (Programming PHP)

- (minus): 5.3. Arithmetic Operators (JavaScript)

+ (plus): 5.3. Arithmetic Operators (JavaScript)

autoincrement and autodecrement: 2.4.7. Autoincrement and Autodecrement Operators (Programming PHP)

new: 5.10.3. The Object Creation Operator (new) (JavaScript)

8.2. Constructors (JavaScript)

typeof: 5.10.2. The typeof Operator (JavaScript)

void: 5.10.5. The void Operator (JavaScript)

unassigned vs. undefined variables: 4.3.2. Undefined Versus Unassigned (JavaScript)

Unauthorized (401) HTTP error: 17.2.4. Client Request Incomplete (Webmaster in a Nutshell)

UnBookmark command: D. Internet Explorer Commands (Dynamic HTML)

uncompressing and extracting PHP and Apache distributions: 1.3. Installing PHP (Programming PHP)

undefined property: 23. Core JavaScript Reference (JavaScript), Global objects: 12.5. Core Objects (Dynamic HTML)

undefined values: 3.8. undefined (JavaScript)

23. Core JavaScript Reference (JavaScript)
generating with void operator: 5.10.5. The void Operator (JavaScript)
identity of: 5.4.1. Equality (==) and Identity (===) (JavaScript)
properties: 8.1.4. Undefined Properties (JavaScript)
unassigned vs.: 4.3.2. Undefined Versus Unassigned (JavaScript)

Underline command: D. Internet Explorer Commands (Dynamic HTML)

underlining text in PDF files: 10.3.3. Text Attributes (Programming PHP)

underscore (_): 4.4. Frame Targets (Webmaster in a Nutshell)

unescape( ): 16.2. Storing Cookies (JavaScript)

23. Core JavaScript Reference (JavaScript)
Global objects: 12.5. Core Objects (Dynamic HTML)

unescape( ) (Global object): 11.4. JavaScript API Reference (Webmaster in a Nutshell)

unescape_url( ) (Perl): 15.8. The Perl API (Webmaster in a Nutshell)

unescape_url_info( ) (Perl): 15.8. The Perl API (Webmaster in a Nutshell)

Unicode: 2.1. Character Set (JavaScript)

16.1. Introduction (PHP Cookbook)
character encodings supported by XML parser: 11.3.6.1. Character encoding (Programming PHP)
escape sequences: 3.2.2. Escape Sequences in String Literals (JavaScript)
FriBiDi extension, reordering strings for encoded character set: B.1. Optional Extensions Listing (Programming PHP)
in identifiers: 2.7. Identifiers (JavaScript)
keypress events: 19.3.1. The IE Event Object (JavaScript)
reading or writing: 16.12.1. Problem (PHP Cookbook)
in string literals: 3.2.1. String Literals (JavaScript)
whitespace characters, in regular expression matching: 10.1.2. Character Classes (JavaScript)

unicode-bidi attribute (CSS): 11.5. Alphabetical Attribute Reference (Dynamic HTML)

unicodeBidi property

CSSStyleDeclaration objects: 9.6. Alphabetical Object Reference (Dynamic HTML)
style objects: 9.6. Alphabetical Object Reference (Dynamic HTML)

Uniform Resource Locators (see URLs)

uninstall command (pear): 21.8.2. Solution (PHP Cookbook)

union of arrays: 4.24.1. Problem (PHP Cookbook), merging arrays to create: 4.24.3. Discussion (PHP Cookbook)

union of two sets: 5.10.1. Sets (Programming PHP)

uniqid( ): 9.6.2. Solution (PHP Cookbook)

A.3d. Alphabetical Listing of PHP Functions (r-z) (Programming PHP)

assigning automatically and maintaining database of: 10.12.1. Problem (PHP Cookbook)
database of, building programmatic queries: 10.13.1. Problem (PHP Cookbook)
LDAP: 17.8.3. Discussion (PHP Cookbook)

uniqueID property: 9.5.3. Event Handlers (Dynamic HTML)

uniqueInteger( ): 7.5.3. Defining Your Own Function Properties (JavaScript)

specifying for CSS style attributes: 18.5.5. Traversing Style Sheets (JavaScript)
specifying for style properties: 18.3.2. Working with Style Properties (JavaScript)

units attribute, embed elements: 8.3. Alphabetical Tag Reference (Dynamic HTML)

units attribute, <embed>: 3.2. HTML Tag and Attribute Descriptions (Webmaster in a Nutshell)

units, edge measurement attributes: 4.2.2. top, right, bottom, and left Attributes (Dynamic HTML)

units property, embed objects: 9.6. Alphabetical Object Reference (Dynamic HTML)

universal (UTC) time: 23. Core JavaScript Reference (JavaScript)

23. Core JavaScript Reference (JavaScript)
23. Core JavaScript Reference (JavaScript)
23. Core JavaScript Reference (JavaScript)
Date object methods for: 23. Core JavaScript Reference (JavaScript)
date, string representation: 23. Core JavaScript Reference (JavaScript)
difference from local time: 23. Core JavaScript Reference (JavaScript)
minutes, setting for date: 23. Core JavaScript Reference (JavaScript)
month, setting for: 23. Core JavaScript Reference (JavaScript)
year, setting in: 23. Core JavaScript Reference (JavaScript)

downloading and installing PHP-GTK: 20.1. Introduction (PHP Cookbook)

file permissions: 19.1. Introduction (PHP Cookbook)

files, line delimiters and pathnames: 18.1. Introduction (PHP Cookbook)

installing PHP: 1.3. Installing PHP (Programming PHP)

locale system in POSIX-style regular expressions: 4.9. POSIX-Style Regular Expressions (Programming PHP)

man strftime: 3.5.4. See Also (PHP Cookbook)

matching filenames, using ls with `: 19.9.3. Discussion (PHP Cookbook)

MySQLÕs UNIX_TIMESTAMP( ) function: 3.6.4. See Also (PHP Cookbook)

pathnames: 18.1. Introduction (PHP Cookbook)

PEAR, installing on: 21.1. Introduction (PHP Cookbook)

protocol for databases: 8.3.1. Data Source Names (Programming PHP)

redirecting standard error to standard output: 18.24.3. Discussion (PHP Cookbook)

shell scripting languages, comments in: 2.1.4.1. Shell-style comments (Programming PHP)

system logins formatted as HTML table: 18.23.3. Discussion (PHP Cookbook)

terminal characteristics: 20.5.3. Discussion (PHP Cookbook)

writing portable PHP code for: 15.2. Writing Portable Code for Windows and Unix (Programming PHP)

determining the platform: 15.2.1. Determining the Platform (Programming PHP)
end-of-file handling: 15.2.8. End-of-File Handling (Programming PHP)
end-of-line handling: 15.2.7. End-of-Line Handling (Programming PHP)
environment information: 15.2.3. The Environment (Programming PHP)
extensions: 15.2.10. Common Platform-Specific Extensions (Programming PHP)
paths, handling: 15.2.2. Handling Paths Across Platforms (Programming PHP)
remote files: 15.2.6. Remote Files (Programming PHP)
sending mail: 15.2.4. Sending Mail (Programming PHP)
server-specific functions: 15.2.5. Server-Specific Functions (Programming PHP)
shell commands: 15.2.9. External Commands (Programming PHP)

zoneinfo library: 3.12.3. Discussion (PHP Cookbook), time zones, listed: 3.12.3. Discussion (PHP Cookbook)

Unix cron tables: 13.1.1. cron Jobs (Web Database Applications)

Unix timestamp: 2.8.1. Generating a Timestamp (Web Database Applications)

unix_timestamp( ): 13.1. Automated Housekeeping (Web Database Applications)

unixtojd( ): 3.11.3. Discussion (PHP Cookbook)

unlink( ): 19.6.2. Solution (PHP Cookbook)

19.12.3. Discussion (PHP Cookbook)
3.1. Calling a Function (Programming PHP)
A.3d. Alphabetical Listing of PHP Functions (r-z) (Programming PHP)

Unlink command: D. Internet Explorer Commands (Dynamic HTML)

UNLINK method (HTTP): 17.1.1.4. Other methods (Webmaster in a Nutshell)

UNLOCK TABLES statement: 6.2.2.2. The LOCK TABLES and UNLOCK TABLES statements in MySQL (Web Database Applications)

unlocking locked files: 18.25.3. Discussion (PHP Cookbook)

unnamed functions, embedding in programs as literal data values: 3.4.1. Function Literals (JavaScript)

unpack( ): A.3d. Alphabetical Listing of PHP Functions (r-z) (Programming PHP)

extracting binary data from strings: 1.14.2. Solution (PHP Cookbook)
format characters, listing of: 1.14.3. Discussion (PHP Cookbook)
format strings: 1.14.3. Discussion (PHP Cookbook)
parsing fixed-width records in strings: 1.11.2. Solution (PHP Cookbook)
substituting for substr( ) in extracting fixed-width fields: 1.11.3. Discussion (PHP Cookbook)

unpacking Apache and PHP source distributions: 1.3. Installing PHP (Programming PHP)

unparsed XML entities: 11.3.4. Entity Handlers (Programming PHP)

unregister_tick_function( ): 8.26.3. Discussion (PHP Cookbook)

A.3d. Alphabetical Listing of PHP Functions (r-z) (Programming PHP)

unrepeatable read problem: 6.2. Issues in Writing Data to Databases (Web Database Applications)

6.2.1. Transactions and Concurrency (Web Database Applications)

Unselect command: D. Internet Explorer Commands (Dynamic HTML)

unselectable attribute: 8.2.1. Attributes (Dynamic HTML)

unserialize( ): 5.8.2. Solution (PHP Cookbook)

A.3d. Alphabetical Listing of PHP Functions (r-z) (Programming PHP)

unset( ): 5.1. Introduction (PHP Cookbook)

7.4.2. Solution (PHP Cookbook)
9.8.3. Discussion (PHP Cookbook)
A.3d. Alphabetical Listing of PHP Functions (r-z) (Programming PHP)
2.1.7.2. Testing, setting, and unsetting variables (Web Database Applications)
array elements, using on: 4.6.3. Discussion (PHP Cookbook)
variables brought into local scope with global keyword: 6.12.3. Discussion (PHP Cookbook)

unset( ) function: 2.3.4. Garbage Collection (Programming PHP)

UnsetEnv directive (Apache): 19.14. mod_env (Webmaster in a Nutshell)

unshift( ): 23. Core JavaScript Reference (JavaScript), Array objects: 12.5. Core Objects (Dynamic HTML)

unshift( ) (Array object): 11.4. JavaScript API Reference (Webmaster in a Nutshell)

unshift( ) method: 9.2.8. unshift( ) and shift( ) (JavaScript)

untrusted scripts

configuring security on: 21.4. Security Zones and Signed Scripts (JavaScript)
JavaScript programs, Java classes and: 22.3. Using Java Classes Directly (JavaScript)

untyped variables: 4.1. Variable Typing (JavaScript), LiveConnect data conversion: 22.5. LiveConnect Data Conversion (JavaScript)

unwatch( ), Global objects: 12.5. Core Objects (Dynamic HTML)

unzip.php program: 18.27. Program: Unzip (PHP Cookbook)

update( ): 7.3.2.2. Prefilling <form> data with JavaScript calculations (Web Database Applications)

UPDATE command (SQL): 10.7.2. Solution (PHP Cookbook)

finding number of rows returned by a query: 10.9.2. Solution (PHP Cookbook)
unique ID database, querying: 10.13.1. Problem (PHP Cookbook)

Update Quantities button: 11.2.1. Viewing the Shopping Cart (Web Database Applications)

UPDATE statement: 3.5.3. Updating Data (Web Database Applications)

limitations of: 3.10.4. Limitations of MySQL (Web Database Applications)
privileges and: 3.10.3.1. Permissions (Web Database Applications)
WHERE clause and: 3.6.2. WHERE Clauses (Web Database Applications)

updateDiscount( ): 6.2.3. Locking Tables in Web Database Applications (Web Database Applications)

updateInterval property, screen object: 9.6. Alphabetical Object Reference (Dynamic HTML)

updatePassword( ): 9.3. Authentication Using a Database (Web Database Applications)

updates: 6.1. Database Inserts, Updates, and Deletes (Web Database Applications)

(see also database updates)

update_time( ): 20.8.3. Discussion (PHP Cookbook)

20.9.3. Discussion (PHP Cookbook)

updating data: 3.5.3. Updating Data (Web Database Applications)

updating loop variables: 6.8. for (JavaScript)

upgrade command (pear): 21.7.3. Discussion (PHP Cookbook)

upgrading PEAR packages: 21.7.1. Problem (PHP Cookbook)

information about: 7.2. Variables (Programming PHP)
moving: A.2c. Alphabetical Listing of PHP Functions (j-q) (Programming PHP)

uploaded files, processing: 9.7.1. Problem (PHP Cookbook)

uploading files: 7.4.8. File Uploads (Programming PHP)

security and: 12.3. File Uploads (Programming PHP)

distrusting browser-supplied filenames: 12.3.1. Distrust Browser-Supplied Filenames (Programming PHP)

upper( ): 3.9.1.1. String-comparison operators and functions (Web Database Applications)

uppercase (see case)

uppercase( ): 17.2.3. Modifying a Document (JavaScript)

uri( ) (Perl): 15.8. The Perl API (Webmaster in a Nutshell)

URIError object: 23. Core JavaScript Reference (JavaScript)

decodeURI( ) function: 23. Core JavaScript Reference (JavaScript)
decodeURIComponent( ) function: 23. Core JavaScript Reference (JavaScript)
encodeURI( ) function: 23. Core JavaScript Reference (JavaScript)
encodeURIComponent( ) function: 23. Core JavaScript Reference (JavaScript)

URIs (universal resource identifiers): 1.2. Uniform Resource Locators (URLs) (Webmaster in a Nutshell)

url( ) (CGI.pm): 14. The CGI.pm Module (Webmaster in a Nutshell)

URL fopen wrapper: 18.4.3. Discussion (PHP Cookbook)

url property, meta objects: 9.6. Alphabetical Object Reference (Dynamic HTML)

URL rewrite feature: 8.3.6.1. Encoding the session ID as a GET variable (Web Database Applications)

URL rewriting, storing state information: 7.6. Maintaining State (Programming PHP)

urldecode( ) function: 4.5.2.2. Query-string encoding (Programming PHP)

urlencode( ): 5.8.3. Discussion (PHP Cookbook)

8.9.2. Solution (PHP Cookbook)
4.5.2.2. Query-string encoding (Programming PHP)
9.6. Dynamically Generated Buttons (Programming PHP)
A.3d. Alphabetical Listing of PHP Functions (r-z) (Programming PHP)

URLs: B.2.2. Uniform Resource Locators (Web Database Applications)

about:, security restrictions on displaying: 21.2. Restricted Features (JavaScript)

Apache server: 1.3.1.1. The Apache HTTP server, Version 1.3 (Web Database Applications)

A.1.3. Installing Apache (Web Database Applications)

ApacheSSL: A.3. Installing Apache to Use SSL (Web Database Applications)

currently displayed document: 13.9. The Location Object (JavaScript)

decomposing (parse_url( ) function): 4.7.4.4. Decomposing URLs (Programming PHP)

embedded: 5.2.2. Adding Links to Results (Web Database Applications)

caution with: 5.2.2. Adding Links to Results (Web Database Applications)
passing data with: 5.1.3. Passing Data with Embedded Links (Web Database Applications)

embedding authentication information in: 18.4.3. Discussion (PHP Cookbook)

encoding: 8.9.2. Solution (PHP Cookbook)

encoding/decoding: A.3d. Alphabetical Listing of PHP Functions (r-z) (Programming PHP)

encoding/decoding strings as: 4.5.2. URLs (Programming PHP), button strings: 9.6. Dynamically Generated Buttons (Programming PHP)

extracting from HTML page: 4.10.13.1. Matching (Programming PHP)

FTP protocol: 17.7.3. Discussion (PHP Cookbook)

functions for: A.1. PHP Functions by Category (Programming PHP)

GET and POST requests: 7.4.1. Methods (Programming PHP)

https://: 7.7. SSL (Programming PHP)

javascript: pseudoprotocol specifier

embedding JavaScript in HTML: 12.2. Embedding JavaScript in HTML (JavaScript)
executing code in: 12.3.4. JavaScript URLs (JavaScript)
including JavaScript on client side: 12.2.4. JavaScript in URLs (JavaScript)

Location object and: 24. Client-Side JavaScript Reference (JavaScript)

mod_ssl: A.3. Installing Apache to Use SSL (Web Database Applications)

MySQL: A.1.1. Installing MySQL (Web Database Applications)

opening remotely with PHP functions, security risks of: 12.2. Filenames (Programming PHP)

OpenSSL: A.3.1. Installing OpenSSL (Web Database Applications), documentation for: A.3.3. Creating a Key and Certificate (Web Database Applications)

parse_url( ) function: A.2c. Alphabetical Listing of PHP Functions (j-q) (Programming PHP)

passing data with: 5.1.1. Passing Data with URLs (Web Database Applications)

password-protected: 14.10.2. Solution (PHP Cookbook)

PHP: A.1.4. Installing PHP (Web Database Applications), manual for: A.4. Installation Resources (Web Database Applications)

PHP Triad for Windows: A.4. Installation Resources (Web Database Applications)

PostgreSQL: 1.4.3. The MySQL DBMS (Web Database Applications)

retrieving remote: 11.1. Introduction (PHP Cookbook)

cookies, fetching with: 11.4.1. Problem (PHP Cookbook)
GET method, fetching with: 11.2.1. Problem (PHP Cookbook)
headers, fetching with: 11.5.1. Problem (PHP Cookbook)
HTTPS: 11.6.1. Problem (PHP Cookbook)
POST method, fetching with: 11.3.1. Problem (PHP Cookbook)

security restrictions on form submissions to: 21.2. Restricted Features (JavaScript)

session IDS, passing via: 7.6.2.2. Alternatives to cookies (Programming PHP)

Smarty PHP template engine: 13.2. Templates (Web Database Applications)

this book: A.2. Installing the Winestore Examples (Web Database Applications)

winestore application: 1.5.1. What Is Hugh and Dave's Online Wines? (Web Database Applications)

XTemplate class library: 13.2. Templates (Web Database Applications)

URLs (uniform resource locators): 1.2. Uniform Resource Locators (URLs) (Webmaster in a Nutshell)

ampersand (&) in: 12.1.1. Transferring the Form Data (Webmaster in a Nutshell)

cookies for: 17.4. Cookies (Webmaster in a Nutshell)

encoding for forms: 6.1. The <form> Tag (Webmaster in a Nutshell)

12.2. URL Encoding (Webmaster in a Nutshell)

extra path information: 12.3. Extra Path Information (Webmaster in a Nutshell)

JavaScript URLs: 2.4.5. JavaScript URLs (Webmaster in a Nutshell)

short pathnames speed downloads: 20.2.2. Short Pathnames (Webmaster in a Nutshell)

as style property values: 9.3.1.4. URL property values (Webmaster in a Nutshell)

URLUnencoded property, document objects: 9.6. Alphabetical Object Reference (Dynamic HTML)

urn attribute, a elements: 8.3. Alphabetical Tag Reference (Dynamic HTML)

urn property, a objects: 9.6. Alphabetical Object Reference (Dynamic HTML)

all objects: 9.6. Alphabetical Object Reference (Dynamic HTML)
anchors objects: 9.6. Alphabetical Object Reference (Dynamic HTML)
areas objects: 9.6. Alphabetical Object Reference (Dynamic HTML)
cells objects: 9.6. Alphabetical Object Reference (Dynamic HTML)
childNodes objects: 9.6. Alphabetical Object Reference (Dynamic HTML)
children objects: 9.6. Alphabetical Object Reference (Dynamic HTML)
forms objects: 9.6. Alphabetical Object Reference (Dynamic HTML)
images objects: 9.6. Alphabetical Object Reference (Dynamic HTML)
links objects: 9.6. Alphabetical Object Reference (Dynamic HTML)
NodeList objects: 9.6. Alphabetical Object Reference (Dynamic HTML)
options objects: 9.6. Alphabetical Object Reference (Dynamic HTML)
rows objects: 9.6. Alphabetical Object Reference (Dynamic HTML)
scripts objects: 9.6. Alphabetical Object Reference (Dynamic HTML)
tBodies objects: 9.6. Alphabetical Object Reference (Dynamic HTML)

US-ASCII (see ASCII)

U.S. Naval Observatory, time zone information: 3.12.3. Discussion (PHP Cookbook)

UseCanonicalName directive (Apache): 18. Apache Configuration (Webmaster in a Nutshell)

usemap attribute

img elements: 8.3. Alphabetical Tag Reference (Dynamic HTML)
input elements: 8.3. Alphabetical Tag Reference (Dynamic HTML)
<img> tag: 3.2. HTML Tag and Attribute Descriptions (Webmaster in a Nutshell)
<input> tag: 3.2. HTML Tag and Attribute Descriptions (Webmaster in a Nutshell)
<object> tags: 3.2. HTML Tag and Attribute Descriptions (Webmaster in a Nutshell)
object elements: 8.3. Alphabetical Tag Reference (Dynamic HTML)

useMap property: 25. W3C DOM Reference (JavaScript)

img objects: 9.6. Alphabetical Object Reference (Dynamic HTML)
input (type="image") objects: 9.6. Alphabetical Object Reference (Dynamic HTML)
object objects: 9.6. Alphabetical Object Reference (Dynamic HTML)

use_named_parameters( ) (CGI.pm): 14. The CGI.pm Module (Webmaster in a Nutshell)

Usenet newsgroups

posting messages to: 17.5.1. Problem (PHP Cookbook)
reading messages from: 17.6.1. Problem (PHP Cookbook)

authentication, Apache server: 18.1.5. Password and Group Files (Webmaster in a Nutshell)
identification: 18. Apache Configuration (Webmaster in a Nutshell)

User-Agent field (HTTP): 20.1.5. Compatibility Through Server-Side Scripts (JavaScript)

User-Agent header: 11.5.3. Discussion (PHP Cookbook)

User-Agent headers: 7.1. HTTP Basics (Programming PHP)

user agents: 1.2. The Client Tier (Web Database Applications)

user-defined functions: 3.1. Calling a Function (Programming PHP)

sorting arrays with: A.3d. Alphabetical Listing of PHP Functions (r-z) (Programming PHP)

A.3d. Alphabetical Listing of PHP Functions (r-z) (Programming PHP)

user-defined order, sorting arrays in: 5.8.1. Sorting One Array at a Time (Programming PHP)

5.8.1. Sorting One Array at a Time (Programming PHP)

User directive (Apache): 18. Apache Configuration (Webmaster in a Nutshell)

user-driven querying: 1.5.2.1. Database-driven querying (Web Database Applications)

(see also querying, user-driven)

USER environment variable: 14.12.3. Discussion (PHP Cookbook)

user input: 5.1. User Input (Web Database Applications)

querying with: 5.2. Querying with User Input (Web Database Applications)
security and: 5.1.4. Security and User Data (Web Database Applications)

user( ) (Perl): 15.8. The Perl API (Webmaster in a Nutshell)

user permissions: 19.1. Introduction (PHP Cookbook)

19.3.3. Discussion (PHP Cookbook)

user-related events: 2.4.1. Event Handler Attributes (Webmaster in a Nutshell)

user tracking: 1.5.2.5. User tracking and session management (Web Database Applications)

(see also session management)

user_agent( ) (CGI.pm): 14. The CGI.pm Module (Webmaster in a Nutshell)

USER_AGENT environment variable: 2.6.2. Page Branching (Dynamic HTML)

2.6.2. Page Branching (Dynamic HTML)

userAgent property: 13.6. The Navigator Object (JavaScript)

24. Client-Side JavaScript Reference (JavaScript)
navigator object: 9.6. Alphabetical Object Reference (Dynamic HTML)

UserDir directive (Apache): 19.36. mod_userdir (Webmaster in a Nutshell)

user_error( ): A.3d. Alphabetical Listing of PHP Functions (r-z) (Programming PHP)

userLanguage property: 24. Client-Side JavaScript Reference (JavaScript), navigator object: 9.6. Alphabetical Object Reference (Dynamic HTML)

user_name( ) (CGI.pm): 14. The CGI.pm Module (Webmaster in a Nutshell)

anonymous: 17.7.3. Discussion (PHP Cookbook)
authenticating: 7.5.4. Authentication (Programming PHP)
current, for PHP script executing: A.2b. Alphabetical Listing of PHP Functions (f-i) (Programming PHP)
DBM database of: 10.3.3. Discussion (PHP Cookbook)
excluding from passwords: 14.6.3. Discussion (PHP Cookbook)
PEAR DB backends: 10.4.3. Discussion (PHP Cookbook)
security problems with: 12.2. Filenames (Programming PHP)

userProfile objects: 9.6. Alphabetical Object Reference (Dynamic HTML)

userProfile property, navigator object: 9.6. Alphabetical Object Reference (Dynamic HTML)

abusive, cutting off: 8.28. Program: Abusive User Checker (PHP Cookbook)

adding/deleting: 3.10.3. Adding and Deleting Users (Web Database Applications)

authenticating: 10.3. Authenticating Users (Web Database Applications)

accessing credentials for: 9.2.1. Access to User Credentials from PHP (Web Database Applications)
customer authentication and: 9.4.3. Case Study: Customer Authentication (Web Database Applications)

authorizing access for: 9.2.3. Authorizing User Access (Web Database Applications)

customer management and: 10. Winestore Customer Management (Web Database Applications)

element comparisons defined by: 2.5.5.4. Sorting with user-defined element comparison (Web Database Applications)

functions defined by: 2.10. User-Defined Functions (Web Database Applications)

login requirement for: 9.4.2.1. Forcing users to a login page (Web Database Applications)

multiple, issues affecting: 6.2. Issues in Writing Data to Databases (Web Database Applications)

reload problem and: 6.1.1. Reloading Data and Relocation Techniques (Web Database Applications)

responding to actions by: 20.8.1. Problem (PHP Cookbook)

session handlers defined by: D.2.2. Building User-Defined Session Handlers (Web Database Applications)

which web browser used by: 7.3.2.4. Which browser is the user using? (Web Database Applications)

users, interacting with: 1.6.4. Interact with the User (JavaScript)

usleep( ): A.3d. Alphabetical Listing of PHP Functions (r-z) (Programming PHP)

usort( ): 4.18.2. Solution (PHP Cookbook)

4.18.3. Discussion (PHP Cookbook)

6.13.3. Discussion (PHP Cookbook)

5.8.1. Sorting One Array at a Time (Programming PHP)

A.3d. Alphabetical Listing of PHP Functions (r-z) (Programming PHP)

anonymous function, using with: 3.7. Anonymous Functions (Programming PHP)

comparing strings and: 2.6.3. Comparing Strings (Web Database Applications)

sorting arrays and: 2.5.5.4. Sorting with user-defined element comparison (Web Database Applications)

2.5.5.4. Sorting with user-defined element comparison (Web Database Applications)

/usr/bin/lastcommand: 18.23.3. Discussion (PHP Cookbook)

UTC( ), Date objects: 12.5. Core Objects (Dynamic HTML)

UTC (Coordinated Universal Time): 3.1. Introduction (PHP Cookbook)

converting to epoch timestamp: 3.3.2. Solution (PHP Cookbook)
gmdate( ) and gmstrftime( ) functions: 3.5.3. Discussion (PHP Cookbook)
offsets between time zones: 3.12.3. Discussion (PHP Cookbook)
time zone offsets from, DST calculation and: 3.13.3. Discussion (PHP Cookbook)

UTC( ) (Date): 23. Core JavaScript Reference (JavaScript)

UTC( ) (Date object): 11.4. JavaScript API Reference (Webmaster in a Nutshell)

UTF-8 character encoding: 11.3.6.1. Character encoding (Programming PHP), printing high-bit ASCII characters: 9.5.2. TrueType Fonts (Programming PHP)

UTF-8 encoding (Unicode): 16.12.3. Discussion (PHP Cookbook)

utf8_decode( ): 16.12.2. Solution (PHP Cookbook)

utf8_encode( ): 16.12.2. Solution (PHP Cookbook)

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