SYMBOL]
[A]
[B]
[C]
[D]
[E]
[F]
[G]
[H]
[I]
[J]
[K]
[L]
[M]
[N]
[O]
[P]
[Q]
[R]
[S]
[T]
[U]
[V]
[W]
[X]
[Z]
U pattern modifier
quantifiers, converting to/from greedy or nongreedy
U.S. Naval Observatory, time zone information
ucfirst( )
ucwords( )
umask (permission setting)
umask( )
Unicode
reading or writing
uninstall command (pear)
union of arrays
merging arrays to create
uniqid( )
unique IDs
assigning automatically and maintaining database of
database of, building programmatic queries
LDAP
Unix
downloading and installing PHP-GTK
file permissions
files, line delimiters and pathnames
man strftime
matching filenames, using ls with `
MySQLÕs UNIX_TIMESTAMP( ) function
pathnames
PEAR, installing on
redirecting standard error to standard output
system logins formatted as HTML table
terminal characteristics
zoneinfo library
time zones, listed
unixtojd( )
unlink( )
2nd
unlocking locked files
unpack( )
extracting binary data from strings
format characters, listing of
format strings
parsing fixed-width records in strings
substituting for substr( ) in extracting fixed-width fields
unregister_tick_function( )
unserialize( )
unset( )
2nd
3rd
array elements, using on
variables brought into local scope with global keyword
unzip.php program
UPDATE command (SQL)
finding number of rows returned by a query
unique ID database, querying
update_time( )
2nd
upgrade command (pear)
upgrading PEAR packages
uploaded files, processing
URL fopen wrapper
urlencode( )
2nd
URLs
embedding authentication information in
encoding
FTP protocol
password-protected
retrieving remote
cookies, fetching with
GET method, fetching with
headers, fetching with
HTTPS
POST method, fetching with
Usenet newsgroups
posting messages to
reading messages from
USER environment variable
user permissions
2nd
User-Agent header
usernames
anonymous
DBM database of
excluding from passwords
PEAR DB backends
users
abusive, cutting off
responding to actions by
usort( )
2nd
3rd
UTC (Coordinated Universal Time)
converting to epoch timestamp
gmdate( ) and gmstrftime( ) functions
offsets between time zones
time zone offsets from
DST calculation and
UTF-8 encoding (Unicode)
utf8_decode( )
utf8_encode( )
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