PHP 6 and MySQL 5 for Dynamic Web Sites: Visual QuickPro Guide

Index

! (exclamation point)

not operator, 42, 133

using as function delimiter, 390

!= (not equal to), 42, 133

“ (double quotation marks)

in Boolean mode, 191

debugging PHP scripts by tracking, 218

escaping with, 6, 216

preg_match() function and, 390

printing variables within, 15, 218

showing string value within context, 18

single vs., 30–32

SQL queries and, 127

using for HTML attributes, 91

# (pound symbol), 10

$ (dollar sign)

initial character in variable, 14

using as meta-character, 394–395

% (modulus), 23

&& (and operator), 42, 133

‘ (single quotation mark)

apostrophes, 238, 247

debugging PHP scripts by tracking, 218

double vs., 30–32

escaping with, 6, 216

preg_match() function and, 390

SQL queries and, 127

( ) (parentheses), 191

* (asterisk) ...