PHP 5.4.0 Released

The PHP development team is proud to announce the immediate release of PHP 5.4.0. This release is a major improvement in the 5.x series, which includes a large number of new features and bug fixes.

  • Support for traits has been added.
  • Short array syntax has been added, e.g. $a = [1, 2, 3, 4]; or
    $a = ['one' => 1, 'two' => 2, 'three' => 3, 'four' => 4];.
  • Function array dereferencing has been added, e.g. foo()[0].
  • Closures now support $this.
  • <?= is now always available, regardless of the
    short_open_tag ini option.
  • Class member access on instantiation has been added,
    e.g. (new Foo)->bar().
  • Class::{expr}() syntax is now supported.
  • Binary number format has been added, e.g. 0b001001101.
  • Improved parse error messages and improved incompatible arguments warnings.
  • The session extension can now track the upload progress of files.
  • Built-in web server in CLI mode.

PHP 5.4.0 Release Announcement →
PHP 5 Changelog →
PHP 5.4.0 Download →

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