index_S

S

S format, date function, 281

s format, date function, 281

s formatting directive, sprintf() function, 303

scalar variables, 35

scripts, configure, 4–6, 11–12

second normal form, 82–83

Secure Sockets Layer (SSL), 196–197

Security argument, setcookie() function, 153

SELECT command, 88–89, 130, 193

<SELECT> tag, 28–29, 176–178

SELECTED attribute, 29

semicolon (;), 32, 251

sending e-mail, 64–69

server-side execution, 30

$_SESSION variable, 36, 155–156

session_destroy() function, 300

sessions

defined, 154

managing user preferences with, 156–161

starting, 155–156

variables

overview, 154

registering, 155–156

session_start() function, 155, 198–199, 300

setcookie() function, 153, 289

shuffle() function, 273–274

single-dimensional arrays, 45

sites. See Web sites

SIZE attribute, 28–29

sizeof() function, 274

sleep() function, 295

spacing, 67

split() function, 299

sprintf() function, 44, 302–303

SQL (Structured Query Language), 84

sqrt() function, 294

srand() function, 294

SSL (Secure Sockets Layer), 196–197

standalone value, 235

start command, 6

start page (Apache), 7

startElement() function, 239–240, 244

$startTags array, 244

statements, 97

for, 115, 259–260

else, 140, 258–259

exit, 58, 295

foreach, 46

if, 127, 258–259

if...else, 40, 119, 157

if...elseif...else, 258–259

return, 48–49

while, 40, 93, 105, 259

stop command, 6

strings

concatenating, 67

defined, 35

discussed, 253

strings variable type, 252

stripslashes() function, 127, 175, 300–301

strlen() function, 303

strtolower() function, 304

strtoupper() function, 304

Structured Query Language (SQL), 84

style sheets, links to, 63

submit buttons, 29–30

substr() function, 120, 304–305

subtraction operator (-), 38, 255

sum() function, 213

superglobals, variables, 36

support resources, 308–310

symlink() function, 288

system() function, 298