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It would be interesting to see what PHP 7's speed can do for them.

Speed and lower memory utilization are great, but PHP7 really is just full of goodies:

* Scalar type declarations

* Return type declarations

* null coalescing operator (the real MVP)

* spaceship operator

* introduced Throwable, big improvement to error handling

* removed PHP4 style constructors

* removed the old mysql extension

Most modern PHP codebases should be able to upgrade from PHP5.6 to PHP7 seamlessly

> * null coalescing operator (the real MVP)

I'm glad someone appreciates it that much! Since helping introduce it, I haven't found as much use for it as I expected.

25 uses in my current codebase vs 5 for spaceship

It's not so much about the count though, but the beauty of it:

$id = trim($options[$longCamelCaseID]['abcdefg'] ?? "");

A real godsend