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Index: E

each( ) function: 5.7.2. The Iterator Functions
A.2a. Alphabetical Listing of PHP Functions (a-e)
echo( ) function: A.2a. Alphabetical Listing of PHP Functions (a-e)
echo command: 1.4. A Walk Through PHP
4.2.1. echo
efree( ) function: 14.5. Memory Management
EG (Executor Globals): 14.10.2. Executor Globals (EG)
EGPCS (environment, GET, POST, cookie, and server) variables: 7.2. Variables
element handlers: 11.3.1. Element Handlers
elements, array
checking whether element exists: 5.5.4. Checking Whether an Element Exists
filtering from: 5.9.4. Filtering Elements from an Array
getting number of: 5.3.3. Getting the Size of an Array
idenfitying: 5.2. Identifying Elements of an Array
removing and inserting: 5.5.5. Removing and Inserting Elements in an Array
trversing: 5.7. Traversing Arrays
else clause: 2.5.1. if
email
functions for: A.1. PHP Functions by Category
IMAP, POP, and NNTP extension: B.1. Optional Extensions Listing
vpopmail extension: B.1. Optional Extensions Listing
emalloc( ) function: 14.5. Memory Management
embedding
fonts in PDF files: 10.3.4. Fonts
PHP in web pages: 2.7. Embedding PHP in Web Pages
ASP tags, using: 2.7.3. ASP Style
echoing content directly: 2.7.5. Echoing Content Directly
script style: 2.7.4. Script Style
SGML tags, using: 2.7.2. SGML Style
XML-compliant tags, using: 2.7.1. XML Style
empty( ) function: A.2a. Alphabetical Listing of PHP Functions (a-e)
empty arrays, constructing: 5.3. Storing Data in Arrays
empty expressions: 2.5.4. for
encapsulation: 6.1. Terminology
encoding
SQL: 4.5.3. SQL
strings according to URL conventions: 4.5.2.1. RFC 1738 encoding and decoding
strings, C language: 4.5.4. C-String Encoding
encryption (mcrypt extension): B.1. Optional Extensions Listing
end( ) function: 5.7.2. The Iterator Functions
A.2a. Alphabetical Listing of PHP Functions (a-e)
end element handler: 11.3.1. Element Handlers
end-of-file handling: A.2b. Alphabetical Listing of PHP Functions (f-i)
on Unix and Windows: 15.2.8. End-of-File Handling
end-of-line handling, on Unix and Windows: 15.2.7. End-of-Line Handling
endif keyword: 2.5.1. if
entities
HTML
translation tables for: 4.5.1.2. Entity-quoting only HTML syntax characters
A.2b. Alphabetical Listing of PHP Functions (f-i)
HTML, converting string characters into: 4.5.1.1. Entity-quoting all special characters
XML: 11.3.4. Entity Handlers
external: 11.3.4.1. External entities
environment variables: 15.2.3. The Environment
A.2b. Alphabetical Listing of PHP Functions (f-i)
$HTTP_ENV_VARS array: 7.2. Variables
server: 7.3. Server Information
setting: A.2c. Alphabetical Listing of PHP Functions (j-q)
variables_order directive in php.ini: 12.1.2. Set variables_order
equality (==) operator: 2.4.8. Comparison Operators
equivalence class: 4.9.1. Character Classes
ereg( ) function: 4.9.3.1. Matching
A.2a. Alphabetical Listing of PHP Functions (a-e)
eregi( ) function: 4.9.3.1. Matching
A.2a. Alphabetical Listing of PHP Functions (a-e)
eregi_replace( ) function: 4.9.3.2. Replacing
ereg_replace( ) function: 4.9.3.2. Replacing
A.2a. Alphabetical Listing of PHP Functions (a-e)
A.2a. Alphabetical Listing of PHP Functions (a-e)
error handling: 13.4. Error Handling
defining error handlers: 13.4.4. Defining Error Handlers
formating and printing errors (example): 13.4.4. Defining Error Handlers
logging in: 13.4.4.1. Logging in error handlers
output buffering: 13.4.4.2. Output buffering in error handlers
logging error messages to system log: A.3d. Alphabetical Listing of PHP Functions (r-z)
reporting errors: 13.4.1. Error Reporting
reverting to prior handler: A.3d. Alphabetical Listing of PHP Functions (r-z)
setting error handler: A.3d. Alphabetical Listing of PHP Functions (r-z)
suppressing errors: 13.4.2. Error Suppression
triggering errors: 13.4.3. Triggering Errors
A.3d. Alphabetical Listing of PHP Functions (r-z)
error suppression (@) operator: 2.4.13. Miscellaneous Operators
error_log( ) function: 13.4.4.1. Logging in error handlers
A.2a. Alphabetical Listing of PHP Functions (a-e)
logging session errors: 7.6.2.3. Custom storage
error_reporting( ) function: 13.4.1. Error Reporting
A.2a. Alphabetical Listing of PHP Functions (a-e)
errors: 13.4.1. Error Reporting
checking databasees for: 8.3.3. Error Checking
functions for: A.1. PHP Functions by Category
warnings about, disabling public visibility of: 12.1.1. Initialize Variables
XML: 11.3.8. Errors
escape sequences
in double-quoted strings: 2.2.3. Strings
4.1.3. Double-Quoted Strings
in single-quoted strings: 4.1.2. Single-Quoted Strings
removing from strings: A.3d. Alphabetical Listing of PHP Functions (r-z)
escapeshellarg( ) function: 12.7. Shell Commands
A.2a. Alphabetical Listing of PHP Functions (a-e)
escapeshellcmd( ) function: A.2a. Alphabetical Listing of PHP Functions (a-e)
escaping special characters in shell commands: 12.7. Shell Commands
eval( ) function, security risks of: 12.6. PHP Code
event-based XML parsing: 11.3. Parsing XML
Excel
accessing data with ODBC PHP: 15.4.2. Accessing Excel Data
configuring DSN with ODBC PHP: 15.4.1. Configuring a DSN
limitations as database: 15.4.3. Limitations of Excel as a Database
reading and writing files with PHP COM: 15.3.5. Reading and Writing Excel Files
Exchange Image File Format (EXIF) extension: 14.4.1. No External Dependencies
Exchangeable Image File Format (EXIF) extension: B.1. Optional Extensions Listing
exec( ) function: A.2a. Alphabetical Listing of PHP Functions (a-e)
security risks with shell commands: 12.7. Shell Commands
execute( ) method: 8.4.2. Prepare/Execute
executeMultiple( ) method: 8.4.2. Prepare/Execute
execution (`) operator: 2.4.13. Miscellaneous Operators
execution time, optimizing: 13.5.3. Optimizing Execution Time
Executor Globals (EG): 14.10.2. Executor Globals (EG)
EXIF extension: 14.4.1. No External Dependencies
B.1. Optional Extensions Listing
exit statements: 2.5.7. exit and return
exp( ) function: A.2a. Alphabetical Listing of PHP Functions (a-e)
expiration, PHP session ID cookies: 7.6.2.1. Session basics
Expires header: 7.5.3. Expiration
explode( ) function: 4.7.3.1. Exploding and imploding
A.2a. Alphabetical Listing of PHP Functions (a-e)
expressions: 2.4. Expressions and Operators
autoincrementing and autodecrementing: 2.4.7. Autoincrement and Autodecrement Operators
empty: 2.5.4. for
in for loop: 2.5.4. for
ternary conditional operator, using on: 2.5.1. if
extends keyword: 6.4.3. Inheritance
Extensible Markup Language (see XML)
Extensible Stylesheet Language (see XSL)
Extensible Stylesheet Language Transformations (see XSLT)
extension_loaded( ) function: A.2a. Alphabetical Listing of PHP Functions (a-e)
extensions: 13.1. Code Libraries
B. Extension Overview
Apache: B.1. Optional Extensions Listing
aspell: B.1. Optional Extensions Listing
BCMath: B.1. Optional Extensions Listing
bzip2 compression: B.1. Optional Extensions Listing
calendar: B.1. Optional Extensions Listing
CCVS: B.1. Optional Extensions Listing
clibpdf: B.1. Optional Extensions Listing
close or shutdown function, triggering resource cleanup: 2.2.7. Resources
COM: B.1. Optional Extensions Listing
ctype library: B.1. Optional Extensions Listing
CURL: B.1. Optional Extensions Listing
Cybercash: B.1. Optional Extensions Listing
CyberMUT: B.1. Optional Extensions Listing
dBase: B.1. Optional Extensions Listing
DBM: B.1. Optional Extensions Listing
dbx: B.1. Optional Extensions Listing
DOM XML: B.1. Optional Extensions Listing
dynamically loading: A.2a. Alphabetical Listing of PHP Functions (a-e)
EXIF (Exchange Image File Format): 14.4.1. No External Dependencies
EXIF (Exchangeable Image File Format): B.1. Optional Extensions Listing
FDF (Forms Data Format): B.1. Optional Extensions Listing
filePro: B.1. Optional Extensions Listing
FriBiDi: B.1. Optional Extensions Listing
FTP: B.1. Optional Extensions Listing
functions provided by, getting: A.2b. Alphabetical Listing of PHP Functions (f-i)
GD graphics library: 9.2. The GD Extension
gettext: B.1. Optional Extensions Listing
GNU MP: B.1. Optional Extensions Listing
iconv: B.1. Optional Extensions Listing
IMAP, POP, and NNTP: B.1. Optional Extensions Listing
Imlib2: 9.2. The GD Extension
Informix: B.1. Optional Extensions Listing
Ingres II databases: B.1. Optional Extensions Listing
InterBase: B.1. Optional Extensions Listing
IRC gateway: B.1. Optional Extensions Listing
Java: B.1. Optional Extensions Listing
Kerberos: B.1. Optional Extensions Listing
loaded, getting names of: A.2b. Alphabetical Listing of PHP Functions (f-i)
mhash: B.1. Optional Extensions Listing
Microsoft SQL Server: B.1. Optional Extensions Listing
Ming library (Flash movies): B.1. Optional Extensions Listing
mnoGoSearch: B.1. Optional Extensions Listing
MySQL: B.1. Optional Extensions Listing
ODBC: B.1. Optional Extensions Listing
Oracle: B.1. Optional Extensions Listing
Ovrimos SQL: B.1. Optional Extensions Listing
PDF: 10.1. PDF Extensions
checking whether installed: 13.3.1. Output Buffering
PDFlib: B.1. Optional Extensions Listing
PEAR DB: 8.4. Advanced Database Techniques
8.4.7. Transactions
accessing databases with: 8.1. Using PHP to Access a Database
8.3. PEAR DB Basics
class and object methods: 8.3. PEAR DB Basics
database performance and: 8.1. Using PHP to Access a Database
getting data from query results: 8.3.5. Fetching Results from a Query
for PHP on Windows: 15.1.3. Adding Extensions to the Base Distribution
platform-specific: 15.2.10. Common Platform-Specific Extensions
PostgreSQL: B.1. Optional Extensions Listing
pspell: B.1. Optional Extensions Listing
Readline: B.1. Optional Extensions Listing
Recode: B.1. Optional Extensions Listing
Satellite CORBA Client: B.1. Optional Extensions Listing
shmop: B.1. Optional Extensions Listing
SNMP: B.1. Optional Extensions Listing
sockets: B.1. Optional Extensions Listing
SWF (Shockwave Flash): B.1. Optional Extensions Listing
Sybase: B.1. Optional Extensions Listing
System V Semaphores and Shared memory: B.1. Optional Extensions Listing
vpopmail: B.1. Optional Extensions Listing
WDDX: B.1. Optional Extensions Listing
writing in C for PHP: 14. Extending PHP
architectural overview: 14.1. Architectural Overview
command-line PHP: 14.3.1. Command-Line PHP
compiling: 14.3.5. Compiling Your Extension
config.m4 file: 14.4. The config.m4 File
creating variables: 14.11. Creating Variables
developers mailing list: 14.14. Where to Go from Here
external dependencies: 14.4.2. External Dependencies
function return values: 14.8. Returning Values
global variables: 14.10. Global Variables
INI entries: 14.12. Extension INI Entries
memory management functions: 14.5. Memory Management
parameter handling: 14.7. Parameter Handling
PHP source code, downloading latest: 14.2.1. The PHP Source
planning: 14.3.2. Planning Your Extension
pval/zval data type: 14.6. The pval/zval Data Type
references: 14.9. References
resources: 14.13. Resources
skeleton extension, creating and fleshing out: 14.3.3. Creating a Skeleton Extension
software tools: 14.2.2. Software Tools
testing: 14.3.6. Testing Your Extension
XML parser: B.1. Optional Extensions Listing
xmlrpc: 11.5. Web Services
documentation, web site: 11.5.2. Clients
XSLT: 11.4. Transforming XML with XSLT
B.1. Optional Extensions Listing
YAZ: B.1. Optional Extensions Listing
YP/NIS: B.1. Optional Extensions Listing
Zend: 14.1. Architectural Overview
ZIP files: B.1. Optional Extensions Listing
external XML entities: 11.3.4. Entity Handlers
parsing: 11.3.4.1. External entities
extract( ) function: 5.6. Converting Between Arrays and Variables
A.2a. Alphabetical Listing of PHP Functions (a-e)
extracting multiple values from arrays: 5.5. Extracting Multiple Values

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