What are the new features of php7?

php7 new features include: PHPNG code merged into PHP7; reduced memory consumption; scalar type declaration, can enforce parameter and return types; consistent 64-bit support; improved exception hierarchy; deprecated SAPI and extensions removed; new null coalescing operator (?) added; support for anonymous additions; support for zero-cost assertion additions.

Summary of new features in PHP7

Improved performance - merge PHPNG code into PHP7 at the same speed as PHP 5 twice.

Reduced memory consumption - Optimized PHP 7 uses fewer resources.

Scalar type declarations - parameter and return types can now be enforced.

Consistent 64-bit Support - Consistent support for 64-bit architecture machines.

Improved Exception Hierarchy - The Exception Hierarchy has been improved. Many fatal errors are converted into exceptions - The exception scope has been increased to cover many fatal errors which are converted into exceptions.

Secure Random Number Generator - Added new secure random number generator API.

Deprecated SAPIs and Extensions Removed - Various old and unsupported SAPIs and extensions have been removed from the latest version.

Null Coalescing Operator (?) - New null coalescing operator added.

Return and scalar type declarations - Support for added return types and parameter types.

Anonymous class - supports anonymous addition.

Zero-cost assertions - Support for zero-cost assertions was added.

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