5 New Features of PHP 7

PHP 7 arrives with latest features and fast performance as compared to the previous PHP versions. It has been introduced with a goal to free up space which leads to improvement.

It was crucial to get rid of many deprecated functionalities, old and unsupported Server APIs and extensions to increase the speed and free up space.

The latest introduction provides more security by removing items that have deprecated for a while in PHP 5 and not in use for a long time. PHP 7 can break the code if your app is running on older version of PHP.

It can also deliver powerful app, all from cloud to enterprise applications and from mobile to the web Applications.

Almost every thing comes under the new PHP 7 and memory consumption is also very less which improves the performance.

Have a look at some of the new features of PHP 7.

Speed Improvement

PHP 7 comes with consistent speed twice as fast as the PHP 5.6 version. It provides unmatched computation speeds and flexibility to adapt to an ever changing environment.

With the new Zend Engine 3.0, apps see up to 2 times faster performance and 50% better memory consumption than PHP 5.6, allowing you to serve more concurrent users without adding any hardware.

It paves a new path for all the developers as it is designed and refactored for today’s workloads.

Type Declarations

PHP is considered as a weak typed language, which means PHP website development does not require you to declare data types.

Variables have data types associated with them but still you can do radical things say adding a string to an integer without resulting in an error.

Type declarations can help you define what should occur so that you get the expected results. This can also make your code easier to read.

Since PHP 5, you can use type hinting to specify the expected data type of an argument in a function declaration, but only in the declaration.

When you call the function, PHP website development will check whether or not the arguments are of the specified type. If not, the run-time will raise an error and execution will be halted.

Also with PHP 7 have the added scalar types specifically int, float, string and bool.

Error Handling

It had been almost impossible to handle fatal errors in PHP website development. A fatal error would not invoke the error handler and would simply stop your script.

On a production server, this usually means showing a blank white screen, which confuses the user and causes your credibility to drop.

It can also cause issues with resources that were never closed properly and are still in use.

Even in PHP 7, an exception will be thrown when a fatal and recoverable error occurs, rather than just stopping the script.

Fatal errors still exist for certain conditions, such as running out of memory, and still behave as before by immediately stopping the script. An uncaught exception will also continue to be a fatal error in PHP 7.

New Operators

Spaceship Operator: The spaceship operator, or Combined Comparison Operator, is a worthy addition to the language, complementing the greater-than and less-than operators. The most common usage for this operator is in sorting.

Null Coalesce Operator: The Null Coalesce Operator, is effectively the fabled if-set-or. It will return the left operand if it is not NULL, otherwise it will return the right. The important thing is that it will not raise a notice if the left operand is a non-existent variable.

Easy User-land CSPRNG

User-land refers to an application space that is external to the kernel and is protected by privilege separation, API for an easy to use and reliable Cryptographically Secure Pseudo Random Number Generator in PHP website development. Essentially secure way of generating random data.

There are random number generators in PHP, rand() for instance. But in version 5 none of them are very secure. But in PHP 7, they put together a system interface to the operating system’s random number generator.

We can now use the operating system’s random number generator. Secure random numbers are especially useful when generating random passwords or password salt.

Also there are some other additional features like Unicode support for emoji and international characters.

But some features have boon removes which will be an issue if you’re working with an older code base. Because these removed features are primarily ones that have been deprecated for a long time.