PHP

<hide> page type::article thing type::computer language language type::interpreted </hide>

About

PHP is an interpreted programming language most commonly used in web sites. It is the language in which the MediaWiki, WordPress, Drupal, and ZenCart web software packages, among many others, are written.

Note that much of the information on this page is somewhat outdated; PHP continues to be actively developed and improved.

subpages

subpage name	type	about
arrays
CLI	how-to	using PHP from a command line interface
criticism	community	why PHP is bad
debugging	how-to	especially /interactive
declare(): altering PHP behavior within a file, including strict typing
enums	type
file-handling	how-to
frameworks
function variable: a variable can be a reference to a function
GUI: graphical interface programming in PHP
installing
inheritance	syntax	rules
interface	keyword
namespaces	keyword/concept
operators	syntax	there are some relatively obscure ones that aren't well-indexed in the official documentation
referencing: how variable references work
ReflectionClass	native class	especially ReflectionClass::getParentClass()
string	type/functions
trait	keyword/concept	including "use" in the context of traits
type declaration
use	syntax	has 3 different meanings in PHP
XML	libraries

Related Articles

• Apache and PHP: getting the two of them to work together nicely
• Perl vs. PHP: comparisons between the two languages
• register_globals

offsite

• wooz:2021/11/25/PHP documentation gripe: a misunderstanding about type-compatibility in method overrrides

Links

Reference

• Web
  • Manual
    • Language Reference
      • Magic constants
      • Name resolution rules
      • parameter types: Function arguments (aka type hinting)
      • Predefined variables
• Wikipedia

Social

• Twitter

Projects

• PHP The Right Way: good practices and patterns
• Hardened PHP: patches to improve PHP security
• 3v4l.org "is an online shell that allows you to run your code on my server. I compiled more than 200 different PHP versions (every version released since 4.3.0) plus HHVM for you to use."

Development Tools

• phpUnderControl - "Continuous Integration for PHP"

Users Groups

• Triangle PHP Users Group: The Triangle, NC

Coding Resources

• PEAR (PHP Extension and Application Repository):
  • Official
  • Wikipedia (PEAR)