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PHP is a widely-used open source general-purpose scripting language
that is especially suited for web development and can be embedded
into HTML. It is modular, and object-oriented. Much of its syntax
is borrowed from C, Java and Perl with a couple of unique PHP-specific
features thrown in. The language is designed to allow web developers
to write dynamically generated pages quickly.
PHP 8.1 comes with numerous improvements and new features such as
* Enumerations
* Readonly properties
* Fibers
* Pure Intersection Types
* never return type
* First-class Callable Syntax
* "final" modifier for class constants
* New fsync and fdatasync functions
* New array_is_list function
* Explicit Octal numeral notation
* And much much more...
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