PHP is an extremely popular language. Almost 82% of websites use PHP, which means that most sites are built on PHP to some extent. Businesses looking to enhance the performance of their PHP applications often invest in professional Web App Development Services to build faster and more scalable solutions. With the increasing number of mobile users who rely on relatively slow 3G connections, it is necessary for servers to power websites that can load quickly in response to user requests.
According to a study, 40% of users abandon the web page if it takes more than 3 seconds to load. PHP 7 offers a 100% improvement in performance speed over its previous PHP 5.6 version. The reason for developing PHP 7 is to make scripting languages run more efficiently. Compared to PHP 5.6, PHP 7 has reduced demands on servers, making it more cost-effective and an environmentally friendly choice, as less energy is required to power servers running PHP 7 applications.
PHP 7 has gone through several months of beta testing and was finally released in a stable form on 3rd Dec 2015, promising some real speed improvements and the latest features in comparison to previous versions of this language. The PHP community embraces this new version of the scripting language because of its fast PHP performance.
Key Takeaways:
Twice as fast as PHP 5, PHP 7 can surely compete with modern competitors such as Facebook’s Hip Hop Virtual Machine (HHVM). PHP 7 also offers fast performance to Drupal users with the additional benefit of not using a virtual machine to execute the PHP code. One more key advantage of PHP 7 is that when it runs on WordPress 4.1.1, it can execute twice as many requests per second as the same WordPress platform running PHP 5.6.
Developers should familiarize themselves with the technical changes that appear in PHP 7 if they intend to upgrade to PHP 7 for web development projects.
Developers like to declare a return type for the function or method. But by default, PHP 7 allows developers to declare what kind of return type the function is expected to return. This means that now programmers can specify the type of variable that a function should return. In PHP 7, the return type is defined after the closing parenthesis of the argument list.
function f1(): array {
return [];
}
This is an example of PHP 7, which declares the function “f1” that returns an array. Whereas, in PHP 5.6, programmers cannot specify the return type, which makes it impossible for anyone reading the code to know what the function “f1” is about.
Declaring the return type makes the code much easier to read while debugging your own code or working on the code of someone else.
PHP 7 introduced a new operator called the spaceship operator ( < = > )or combined comparison operator. This operator is mostly used in sorting and combined comparison. It works like strcmp() or version_compare ()
function order_func($a, $b)
{
return ($a < $b) ? -1 : (($a > $b) ? 1 : 0);
}
function order_func($a, $b)
{
return $a <=> $b;
}
This is one of the beautiful additions in this latest PHP version, which can be used to quickly and conveniently compare two expressions. The operators can be used as follows:
a < = > b
Apart from the above-mentioned changes, there are some other modifications added to PHP7. Here is the list.
PHP 7 is the most significant update that has affected PHP in more than a decade. However, upgrading your existing code to PHP 7 might come with a few challenges. But the reward would be much faster performance and less demand on the web servers.
The first thing you need to make sure of before switching to PHP 7 is that the libraries the PHP project uses are available for PHP 7.
If the libraries are supported by PHP 7 then you may need to hold off the upgrading for a while or check if it’s possible to remove the dependency on those libraries.
If the code is written in PHP 5.5 or 5.6, then upgrading to PHP 7 will be really easy. However, if you are using PHP 4, then there will be some syntax changes you need to be aware of. For example, the constructor functions in PHP 4 are no longer supported in PHP7.
While upgrading to PHP 7, ensure that your code includes unit and integration tests. These tests should identify any issues with your applications before they pop up as bugs on the live screen.
PHP 7’s performance advantages mean that it is going to play a key role in the future of Web Development. Many popular websites develop platforms such as WordPress, which allow their users to easily upgrade to the new PHP version to experience much better services. Reach out to Arpatech to learn how our PHP specialists can help you upgrade and optimize your web applications. Let’s turn your ideas into a strong digital presence.
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