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Index: E

each( ): 2.5.3. Using Array Pointers
2.5.3. Using Array Pointers
2.5.3. Using Array Pointers
echo statement: 2.1.1.3. Outputting data with echo and print
email addresses
@ symbol in: 7.2.1.3. Validating email addresses
7.3.1.1. Case study: A generic JavaScript validation function
validating: 7.2.1.3. Validating email addresses
email receipts: 12. Ordering and Shipping at the Winestore
12.2. HTML and Email Receipts
shipping.1 script and: 10.1.1. Winestore Scripts
embedded links: 5.2.2. Adding Links to Results
caution with: 5.2.2. Adding Links to Results
passing data with: 5.1.3. Passing Data with Embedded Links
empty( ): 2.1.7.2. Testing, setting, and unsetting variables
7.2.2.2. Other <form> issues
encode( ): 9.3.1.1. Encrypting other data in a database
encryption: 9.3.1. MySQL encryption
9.5.1.2. Cipher suites
functions for: 3.9.1.4. Miscellaneous operators and functions
resources for further reading: E.4. Security and Cryptography Resources
end( ): 2.5.3. Using Array Pointers
end-loop statements: 2.3.3. for
end tags: 2.1.1. PHP Basics
(see also start/end tags)
entity-relationship modeling: 3.1.2. Terminology
(see also ER modeling)
equality operator, vs. assignment operator: 2.2.3. Conditional Expressions
ER modeling: 3.1.2. Terminology
C.2. Entity-Relationship Modeling
for winestore application: 3.2.2.1. The winestore entity-relationship model
ereg( ): 2.7.1. Regular Expression Syntax
dates, validating and: 7.2.1.1. Validating dates
extracting values and: 2.7.2.1. Finding and extracting values
numbers, validating and: 7.2.1.2. Validating numeric fields
eregi( ): 2.7.2.1. Finding and extracting values
email addresses, validating and: 7.2.1.3. Validating email addresses
error handling
custom error handlers for: 10.4.1. Custom Error Handlers
for MySQL functions: 4.1.4. Error Handling of MySQL Database Functions
error messages
displaying: 8.4.3.2. Displaying error messages
improving: 8.4.2.1. Improving error messages
error reporting: 7.1. Validation and Error Reporting for Web Database Applications
errorHandler( ): 10.4.1. Custom Error Handlers
10.4.1. Custom Error Handlers
error.inc include file: 4.2.1. Using Include Files in Practice
10.4. The Winestore Include Files
10.4.1. Custom Error Handlers
error_log( ): 10.4.1. Custom Error Handlers
EscapeShellCmd( ): 5.1.4. Security and User Data
10.4. The Winestore Include Files
escaping characters: 2.1.1.4. String literals
2.6.1. String Literals
special characters and: 2.7.1.7. Escaping special characters
events: 7.3. Client-Side Validation with JavaScript
exec( ): 5.1.4. Security and User Data
explode( ): 2.6.4.4. Extracting multiple values from a string
2.7.2.3. Splitting a string into an array
exponential functions: 2.9.6. Powers and Logs
expressions: 2.1.5. Expressions, Operators, and Variable Assignment


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