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Difference between revisions of "PHP"

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PHP is one of many [[interpreted languages]] written in [[C]].
 
PHP is one of many [[interpreted languages]] written in [[C]].
 
=Development Environment=
 
=Development Environment=
==php cli==
+
==PHP CLI==
 +
{{quote|Many [[Linux]] distributions package the [[PHP]] CLI separately|Xochipilli}}
 +
 
 
* php -l check syntax
 
* php -l check syntax
 
* php -v version
 
* php -v version
 
* php -e oneliner
 
* php -e oneliner
 
{{quote|Many [[Linux]] distributions package the [[PHP]] CLI separately|Xochipilli}}
 
  
 
==Pear/Pecl==
 
==Pear/Pecl==

Revision as of 02:13, 16 May 2012

PHP is one of many interpreted languages written in C.

Development Environment

PHP CLI

Xochipilli says
Many Linux distributions package the PHP CLI separately
  • php -l check syntax
  • php -v version
  • php -e oneliner

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