Specifications

retrieving
851
character sets, 109-110
curly braces ({}), 112
slash (\), 112
Smart Form Mail applica-
tion, 113-114
special characters, 113
literal special
chracters, 112
splitting strings, 115-116
subexpressions, 111-112
substrings
finding, 114-115
replacing, 115
Web references, 116
regular string data types,
204
relational database man-
agement systems. See
RDBMSs
relational databases,
172-175
keys, 173-175
foreign keys, 175
relationships, 175
many-to-many relation-
ships, 175
one-to-many relation-
ships, 175
one-to-one relation-
ships, 175
schemas, 175
tables, 173
columns, 173
rows, 173
values, 173
relationships (databases),
175
many-to-many relation-
ships, 175
one-to-many relationships,
175
one-to-one relationships,
175
RELOAD privilege, 191
remote debugging, 494
remote FTP servers,
connecting to (mirroring
files), 382
RENAME [AS]
new_table_name
syntax, 224
rename() function, 365
reordering arrays, 83-85
array_reverse() function,
84-85
shuffle() function, 83-84
repetition structures. See
loops
replacing substrings,
108-109
with regular expressions,
115
replying to email (Warm
Mail application),
651-652
repository (version
control, code), 467
repudiation, 289-290
request verification
(MySQL database), 251
Requests for Comments
(RFCs), 370
require() statement,
119-129
auto_append_file (php.ini
file), 126-127
auto_prepend_file (php.ini
file), 126-127
filename extensions,
120-121
PHP tags, 121
Web site templates,
121-126
requirements
online newsletters, 656
components, 657
personalized documents,
749
software, 749-751
system, user personaliza-
tion, 498
reset password() function,
523
reset() function, 88
resetting passwords, user
authentication, 521-526
resize image.php, 596
resources, 804-806
Apache, 806
MySQL and SQL, 806
PHP, 804-806
Web development, 806
result identifier, retrieving
query results (Web data-
bases), 236-237
results
file status functions, code,
362, 366-367
vote database, code to
retrieve, 422-423
results.php script, 230-231
retrieve_message() func-
tion, 645-647
retrieving
data
aggregating, 220-222
from databases,
211-212
from multiple tables,
214-219
grouping, 220-222
in a particular order,
219-220
joins, 219
tables, aliases, 218-219
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