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PHP Manual

Migrating from PHP 5.2.x to PHP 5.3.x
PHP Manual

New features

PHP 5.3.0 offers a wide range of new features:

  • Support for namespaces has been added.
  • Support for Late Static Bindings has been added.
  • Support for jump labels (limited goto) has been added.
  • Support for native Closures (Lambda/Anonymous functions) has been added.
  • There are two new magic methods, __callStatic() and __invoke().
  • Nowdoc syntax is now supported, similar to Heredoc syntax, but with single quotes.
  • It is now possible to use Heredocs to initialize static variables and class properties/constants.
  • Heredocs may now be declared using double quotes, complementing the Nowdoc syntax.
  • Constants can now be declared outside a class using the const keyword.
  • The ternary operator now has a shorthand form: ?:.
  • The HTTP stream wrapper now considers all status codes from 200 to 399 to be successful.
  • Dynamic access to static methods is now possible.
  • Exceptions can now be nested.
  • A garbage collector for circular references has been added, and is enabled by default.
  • The mail() function now supports logging of sent email. (Note: This only applies to email sent through this function.)
Migrating from PHP 5.2.x to PHP 5.3.x
PHP Manual


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PHP-Index
  1. Introduction
  2. Installation and Configuration
  3. Language reference
  4. Security
  5. Features
  6. Function reference
  7. PHP and zend engine internal
  8. FAQ: Frequently Asked Questions
  9. Appendices



 

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