When was php7 released?

PHP 7.0.0 Alpha 1 released

##June 11, 2015

The PHP development team announced that PHP 7.0.0 Alpha1 will be available immediately. This release marks the beginning of the main PHP 7 series. All PHP users are encouraged to test this version carefully and report all bugs and incompatibilities in the bug tracking system. (Recommended Learning: PHP Video Tutorial)

This is a development preview - DO NOT use it for production!

PHP 7.0.0 Alpha 1 comes with a new version of Zend Engine with the following features: (Incomplete list):

Improved performance of: PHP 7 Runs twice as fast as PHP 5.6

Consistent 64-bit support

Many fatal errors are now exceptions

Remove old and unsupported SAPI and extensions

Empty coalescing operator (??)

Combined comparison operator (<=>)

Return type declaration

Scalar type declaration

Anonymous Class

For more information about new features and other changes, you can read the NEWS file or the UPGRADING file for a complete list of upgrade instructions. These files can also be found in distribution archives.

For source code downloads for PHP 7.0.0 Alpha 1, please visit the download page, Windows source code and binaries can be found at Windows.php.net/qa/.

The second Alpha version will be released on June 25th. You can also read the full list of planned releases on the Wiki.

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