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New features in PHP 7.1

  • Nullable types
  • Void functions
  • Symmetric array destructuring
  • Support for keys in list()
  • Class constant visibility
  • iterable pseudo-type
  • Multi catch exception handling
  • Support for negative string offsets
  • Support for AEAD in ext/openssl
  • Convert callables to Closures with Closure::fromCallable()
  • Asynchronous signal handling
  • HTTP/2 server push support in ext/curl


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