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Difference between revisions of "PHP"
From NetSec
| Line 14: | Line 14: | ||
=Boolean Logic= | =Boolean Logic= | ||
=Loops= | =Loops= | ||
| + | ==Ternary Conditionals== | ||
=User Input= | =User Input= | ||
=User-Defined Functions= | =User-Defined Functions= | ||
| + | |||
| + | Defining functions in [[PHP]] is accomplished using the ``function'' keyword, followed by the function name and comma delimited arguments, surrounded by parenthesis: | ||
| + | |||
| + | {{code | ||
| + | |text= | ||
| + | <source lang="php"> | ||
| + | function myFunction(arg1, arg2) { | ||
| + | ... | ||
| + | } | ||
| + | </source> | ||
| + | }} | ||
| + | |||
| + | If the function is encapsulated in an object, you may specify the visibility of the function, public, protected or private. | ||
| + | |||
| + | {{code | ||
| + | |text= | ||
| + | <source lang="php"> | ||
| + | class MyClass | ||
| + | { | ||
| + | public function myFunction(arg1, arg2) { | ||
| + | ... | ||
| + | } | ||
| + | ... | ||
| + | </source> | ||
| + | }} | ||
| + | |||
| + | Unlike languages, such as [[Perl]] or [[Python]], [[PHP]] member functions implicitly extract their parent into the $this variable. | ||
| + | |||
=Security= | =Security= | ||
* Type Handling | * Type Handling | ||
* XSS | * XSS | ||
* SQL Injection | * SQL Injection | ||
Revision as of 02:12, 16 May 2012
PHP is one of many interpreted languages written in C.
Contents
Development Environment
php cli
- php -l check syntax
- php -v version
- php -e oneliner
| Xochipilli says |
|---|
| Many Linux distributions package the PHP CLI separately |
Pear/Pecl
Your first application
Variables and data types
Boolean Logic
Loops
Ternary Conditionals
User Input
User-Defined Functions
Defining functions in PHP is accomplished using the ``function keyword, followed by the function name and comma delimited arguments, surrounded by parenthesis:
function myFunction(arg1, arg2) { ... } |
If the function is encapsulated in an object, you may specify the visibility of the function, public, protected or private.
class MyClass { public function myFunction(arg1, arg2) { ... } ... |
Unlike languages, such as Perl or Python, PHP member functions implicitly extract their parent into the $this variable.
Security
- Type Handling
- XSS
- SQL Injection
