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PHP Language Reference 1

Main

III. Language Reference
1. Basic syntax
Escaping from HTML
Instruction separation
Comments
2. Types
Introduction
Booleans
Syntax
Converting to boolean
Integers
Syntax
Integer overflow
Converting to integer
Floating point numbers
Converting to float
Strings
Syntax
Useful functions and operators
Converting to string
String conversion to numbers
Arrays
Syntax
Useful functions
Array do's and don'ts
Converting to array
Comparing
Examples
Objects
Object Initialization
Converting to object
Resource
Converting to resource
Freeing resources
NULL
Syntax
Pseudo-types and variables used in this documentation
mixed
number
callback
void
...
Type Juggling
Type Casting
3. Variables
Basics
Predefined variables
Variable scope
The global keyword
Using static variables
References with global and static variables
Variable variables
Variables from outside PHP
HTML Forms (GET and POST)
HTTP Cookies
Dots in incoming variable names
Determining variable types
4. Constants
Syntax
Magic constants
5. Expressions
6. Operators
Operator Precedence
Arithmetic Operators
Assignment Operators
Bitwise Operators
Comparison Operators
Ternary Operator
Error Control Operators
Execution Operators
Incrementing/Decrementing Operators
Logical Operators
String Operators
Array Operators
Type Operators
7. Control Structures
if
else
elseif
Alternative syntax for control structures
while
do-while
for
foreach
break
continue
switch
declare
Ticks
return
require
include
require_once
include_once

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