What's new in PHP 7.4?
*Typed Properties*
*FFI*
*Preloading*
Variance Checking for Arguments/Return Types
Null Coalesce Assignment (%??=%)
Spread Operator:
%$apples = ['🍎', '🍏']; $fruits = ['🍑', ...$apples, '🍅'];%
Hash Extension always available
New Custom Serialisation
Weak References
Short Arrow Functions: %$arrow = fn($x) => $x + $y;%
Numerical Literal Separator: %3.141_592_653_589_793_238_462_643_383%