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PHP Upgrade: Understanding Difference between PHP5 and PHP7

  • By Hidden Brains
  • April 18, 2022

difference between php5-and-php7

Know The Difference Between PHP5 and PHP7

PHP is the most popular and widely used open-source general-purpose scripting language. The PHP empowers 89% of websites. This blog provides a quick comparison and difference between PHP 5 and 7 for web application development.

Initially, it was designed for web development, and for years, it has become the preferred language of the developers. From time to time, to meet the demand and requirements of the industry, experts are continuously enhancing the PHP language with advanced PHP development tools and technologies and introducing a better version in the market.

Things to know before upgrading PHP version from PHP 5 to PHP 7

Presently, PHP 5 and PHP 7 have created a massive buzz in the tech industry. PHP 7 is the latest version and considered a next-generation variant of the programming language. Whereas PHP 5 developers in a comfort zone aware of its working.

PHP 7 is the upgraded version of PHP 5, and it offers high-performance speed with less memory storage. Apart from these, according to PHP, it also offers modern features which are as under. Explore this article to check php7 vs php5 performance.

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Difference Between php5 and php7 with Advance Features

  1. Scalar type declarations
  2. Returns type declarations
  3. Null coalescing operator
  4. Spaceship operator
  5. Constant arrays using define

Also Read: List of Top PHP development tools & Best IDE for PHP Web Development

If you are also in the same confusion, this blog will clear the difference between PHP 5 and PHP 7. To decide which version is the best for your web application, get in touch with a reliable PHP development company.

Know the Top Difference Between PHP 5 and 7


PHP 5 is the upgraded version of PHP 4 PHP web developers state that PHP 5 is a robust version as compared to other versions. However, it was not able to meet the user’s expectations. Additionally, PHP 5 allows developers to pass the objects through references; developers were not able to share the objects. PHP 5 is also known as an objected-oriented model as it involves various attributes like user interferences.


PHP 7 is the latest version of the PHP programming language. Powered by Zend Engine 3.0. PHP 7 has grabbed huge attention in the industry as after PHP 5, directly PHP 7 was launched officially in the market.

PHP6 was not a stable version, and developers don’t find it worth to launch it in the market officially. PHP6 was out for the launch, but developers didn’t find it a stable version. It was utilized in a company project. So, to not confuse the community, PHP companies directly launch the PHP 7 versions. The only motive to launch PHP 7 is to improvise the speed of websites and to meet the developer’s expectations.

Hence, PHP 7 offers 4 times better loading speed than PHP 5 and other PHP versions. Along with this, PHP 7 consumes less memory. These features were not available in different versions of PHP launched till now. Other than the high performance, there are several more advanced features, which give reason to the developers to opt for the upgraded version.

Let’s Know the Major Difference Between php5 and php7

      1. Speed & Performance– PHP 7 has a next generation design that makes it faster. Though it is true that PHP 5 already used a coding system quite advanced from the traditional coding designs, evidently PHP 7 uses a more simple coding system, making the process less complicated and therefore faster. Needless to say the performance of the PHP7 framework is way more efficient and offers a seamless experience to users because it is free from bugs and other issues that used to arise because of a heavy coding system.
      2. 64 Bit Supported– PHP 5 is not 64 bit supported and hence cannot support the latest integers or large files. This is a problem that has been resolved through PHP 7 as it support 64 bits. Thus, the PHP 7 framework supports latest integers and can also handle large files without slowing down the process at all.
      3. Easy Coding– As mentioned earlier, PHP5 has an efficient coding system. However, when it comes to PHP7, the framework uses simpler codes even further to make the coding process hassle free. As a result, using this framework is also less complicated and ensures greater speed in comparison to PHP5. While on the one hand coding is easier and smooth, the using and experience is also better in PHP7.
      4. Engine Version– the engine used by PHP5 is an old version called the Zend II. This is slightly outdated and as a result, the speed and performance of the engine is not satisfactory. To the contrary, PHP7 uses the latest engine version known as the PHP-NG or the next generation. The performance of the engine is not only way better than that of PHP but also has an optimized memory storage.
      5. Anonymous Class– There is no anonymous class or a similar concept in PHP5 but this PHP7 incorporates this feature for enhancing execution.
      6. Spaceship Operator-PHP5 does not have its own operator and hence it needs to use several other operators for any comparison. However, PHP7 has its own operator that comprises of a notation feature. The notation feature helps in returning to null whenever the result is inaccessible. Thus, PHP7 is a better equipped choice for most.
      7. Handling of Fatal Errors-Handling fatal errors might be a challenging task in PHP5. However, PHP7 has been designed accordingly to handle various kinds of errors without changing the entire coding. This is primarily because of the simple coding process used in PHP. Programmers can change a portion of the coding without changing the parent code, thereby making editing errors easier.
      8. Return Type– PHP5 does not have a return type function that PHP7 does. As a result, it is easier to use or make minute or large alterations in PHP7.
      9. Group use Declaration-PHP5 does not have a group use declaration. Instead it has an individual declaration feature for common namespaces. The group use declaration helps in drawing different classes from the same namespaces in PHP7.
      10. Better Connectivity– All in all, PHP7 is faster and more efficient than PHP5 and hence, it offers better connectivity to the users.

Good to Read: Best PHP Framework and PHP Web Development Advantages

Difference Between PHP5 and PHP7

PHP 7 is the upgraded version of PHP 5 and also turned as a preferred choice of the developers. There are several differences that make PHP 7 different from its previous versions. Furthermore, let’s know the major difference between php5 and php7 that every developer should know

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1. Speed and Performance

PHP 5 speed is less as compared to PHP 7, it offers high speed but still it is not able to meet with the developer’s requirements. Additionally, PHP 5 uses Zend II.

When it comes to PHP7, then it offers high performance and it is launched with the motive to improve the speed only. Upgraded PHP 7 version not only ensures the loading speed of the websites but also increases the performance of the scripting.

2. 64 Bit Supported

PHP5 is not supported with 64 Bit Supported. With Bit 64, large files can be supported, mostly issue in the languages is large files can’t be supported

PHP 7 is integrated with 64 Bit Support and enables the storage of large files. It is introduced with 64-bit integers.

3. Easy Coding

PHP5 coding is easy as compared to the traditional coding process, but still, PHP developers UK have to face major challenges with the PHP5 and have to sort the complex challenges.

PHP 7 offers an easy coding system opportunity to developers with the support of return type declarations. With the integration of the value, it represents the value simply or specifies the variable in the programming language.

4. Engine Version

PHP5 is integrated with the older version of the engine. It is referred to as Zend II. However, it reduces performance as compared to PHP7.

PHP7 updated engine version is considered as a next-generation model. As PHP7 based engines improve performance as well as optimized with advanced memory usage

5. Anonymous Class

When it comes to PHP5, there is not any concept related to the anonymous class.

With PHP7, PHP Programmers can easily leverage the benefits of the anonymous class as it helps to speed up the execution time, which helps increase the productivity and efficiency of the development process.

6. Spaceship Operator

PHP5 version isn’t based on a spaceship operator, and for this, loss of operations is utilised for the comparisons.

PHP7 comes with a new and advanced popular operator.

7. Handling of Fatal Errors

With PHP5, handling errors for the development process is difficult for the developers.

With PHP7, handling fatal errors is effortless.

8. Return Type

PHP5 is not integrated with functionalities, or with it, the return value can’t be defined appropriately.

The return type of a function can be declared as the expected return value.

9. Group use Declaration

With PHP5, developers used to get the individual declarations for standard namespaces.

The updated version of PHP7 turns the code more readable and compact with the proper group use declaration.

10. Better Connectivity


PHP5 scripts are totally different from PHP7 as when it comes to the PHP5, it has elevated capabilities, and confined developers with the functionality. Apart from this it supports less connectivity and is not that reliable and appropriate for the web development process.


PHP7 offers high performance to the user and provides a high level of experience. It boosts the performance and connectivity of the development process as compared to the previous versions. PHP7 offers flawless connectivity and single hardware can be utilized to host multiple customers at the same time. PHP7 script even runs on Facebook, which is used in the time compiler.

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In the below infographic, we have highlighted all information about PHP development tools and the Best PHP Framework that will help you to know about PHP. Check clear comparision of php 5 vs php 7.

Infographic-best php framework list and php market share

Copy the code to include this detailed info-graphic of Impact of top Emerging Technologies on Logistics on your blog or page:

<img class="aligncenter size-full wp-image-14372" src="https://www.hiddenbrains.co.uk/wp-content/uploads/2019/10/Infographic-best-php-framework-list-and-php-market-share.jpg" alt="Infographic-best php framework list and php market share" width="870" height="3982" />


To step to an upgraded version is the smart step as it offers advanced features and turns the development process easier, faster, and simplified. PHP 7 is launched with great standard features and helps to increase the developer’s speed and performance. Between PHP5 vs PHP7, this Latest PHP7 version is highly beneficial for the organizations as it supports attributes like security and high speed.

But to leverage the PHP 7 version, it is essential to hire a PHP developer who is well versed with the upgraded version and knows how to utilize it in the best manner.

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