5 New Features in PHP 7

The following are some of the new features PHP 7:

• Scalar type declarations.
• Return type declarations.
• Null coalescing operator.
• Spaceship operator.
• Constant arrays using define()
• Anonymous classes.
• Unicode codepoint escape syntax.
• Closure::call()

1. What are the new features in PHP 7?
2. Which of the following is new operator added in PHP 7?
3. What is new function in PHP?
4. Why PHP 7 is faster?
5. What is the difference between PHP 5 and 7?
6. What is current PHP version?
7. What is PHP used for?
8. What is type hinting in PHP?
9. Is PHP 7.4 stable?
10. What are PHP parameters?
11. What are PHP features?
12. What are PHP built in functions?

What are the new features in PHP 7?

Key Takeaways

• PHP 7.0 added scalar type declarations for strings, integers, floating-point numbers, and booleans.
• PHP 7.0 added support for return type declarations.
• PHP 7.1 added support for nullable parameter types and return types.
• void is a valid return type as of PHP 7.1.

Which of the following is new operator added in PHP 7?

Another new operator in PHP 7 is the Null Coalesce Operator.

What is new function in PHP?

They augment the other types introduced in PHP 5: class names, interfaces, array and callable. ... This directive not only affects the type declarations of parameters, but also a function's return type (see return type declarations, built-in PHP functions, and functions from loaded extensions.

Why PHP 7 is faster?

One of the reasons we found PHP 7 to be faster for the Aerospike PHP Client is because we use a lot of hash tables in the C level. The new hash table implementation of the Zend Engine is more efficient than the previous implementation. This results in a clear performance gain.

What is the difference between PHP 5 and 7?

Performance is one of the first major differences between PHP 7 and PHP 5. Supposing that you have written a PHP code in PHP 5, if you run the same code in both the versions, the performance of PHP 7 will be significantly higher than PHP 5. PHP is powered by Zend Engine even since the release of PHP 4.

What is current PHP version?

W3Techs reports that, as of April 2021, "PHP is used by 79.2% of all the websites whose server-side programming language we know."
...
PHP.

What is PHP used for?

PHP is a recursive acronym for "PHP: Hypertext Preprocessor". PHP is a server side scripting language that is embedded in HTML. It is used to manage dynamic content, databases, session tracking, even build entire e-commerce sites.

What is type hinting in PHP?

In simple word, type hinting means providing hints to function to only accept the given data type. In technical word we can say that Type Hinting is method by which we can force function to accept the desired data type. In PHP, we can use type hinting for Object, Array and callable data type.

Is PHP 7.4 stable?

PHP 7.4 is the latest stable version of PHP. It was released on November 28, 2019 and it's the last version before PHP 8. It brings lots of new features, syntax additions and fixes.

What are PHP parameters?

A parameter is anything you pass to a function or method. It can be some value stored in a variable, or a literal value you pass on the fly. They are also known as arguments. some_function($some_param, "some other param");

What are PHP features?

The main features of php is; it is open source scripting language so you can free download this and use. PHP is a server site scripting language. It is open source scripting language. It is widely used all over the world. It is faster than other scripting language.

What are PHP built in functions?

Built in functions are predefined functions in PHP that exist in the installation package. These PHP inbuilt functions are what make PHP a very efficient and productive scripting language. The built in functions of PHP can be classified into many categories.