Best PHP Performance Tuning Tips to Boost Website Speed

Rohan Mathew

The performance of all PHP applications matters to the developers. Earlier, many issues were associated with PHP applications, and some of them needed special attention. However, the later versions of PHP addressed these issues, and the framework is now increasingly being the one of choice for developers. Furthermore, the advanced features associated with PHP helps in building progressive apps and optimising their performance.

The users must be satisfied using the application and not complain about its performance. Any performance issues could lead to a loss in revenue opportunities. Monitor the applications continuously to ensure user satisfaction. The developers must undertake proper checks to assure improved performance. Developers must know the perfect PHP performance tuning techniques.

Identifying and removing bottlenecks

Developers must recognise the bottlenecks in the application and undertake a root cause analysis. It will help them get to the bottom of the problem. Then, the developers must create a plan for the activities to be carried out and decide on the best options available. It can help implement the optimal solution and the measured results per the decided KPIs.

For example, you can remove repeated function calls that can enhance the working of the loops. For simplistic string evaluations, you can steer clear of using Regex manipulation. They are known to be slower than most string functions. Another point to note is that there is no support for database connection pooling. These can use considerable resources in PHP.

Various tools can boost performance, too, like Retrace and Prefix. The prefix can show the slow queries that can certify the performance of the code. Next, the developers must list the items that need attention and prioritise them. Finally, use an optimisation tool to measure application performance.

Optimising the application

Developers must use the code optimising best practices. It will help them optimize the code, but it could take time to maintain it. Using best practices will ensure optimal memory utilisation, lower input/ output operations, and faster execution of processes. Experienced developers can ensure they optimise only the relevant portions of the code. In several cases, the developers optimize the non-critical parts; it will not lead to considerable performance enhancement. Given that PHP has several dependencies, you must use third-party software to assess if the code is optimally using these dependencies. 

You can wish to add several features to the PHP application, but you must first configure the setup needed for the application. It is essential for the optimal configuration for the runtime environment. It will allow you to minimise the use of resources and ensure the reliability of the application. When optimising the configuration, you must remember that some features may stop when the settings are changed. Therefore, you must be careful while changing the settings.

Improving the code for improved processes

Developers must optimize the code and never write complicated code. Do not repeat variable descriptions, and using JSON data types is better than using XML. The business logic must be written in the controllers, while the models must handle the database. It would help if you evaded unwanted classes and functions. Always opt for a standard class and then inherit that in others.

The developers must try to use native PHP functions to achieve objectives. For example, if you only keep the strings within quotes, it is better to use single quotes than double-quotes. You can also use “= = =” as it will help by checking for a closed range that can optimize performance.

The database connections must be closed, and the debugging options must be disabled on the live servers. Also, limit the database hits and avoid several requests at once. Moreover, you must avoid using SQL queries in loops. 

Minifying the static assets and using cache

When working with PHP, many accompanying tools can affect the app performance. Minifying the static scripts can reduce the processing time. You can also use various online tools. You can also use cache systems that can help enhance PHP websites’ processing. As the HTML is cached, it can provide optimum performance. Developers can cache various application components, and purging is possible too. 

Your developers must execute the optimal caching strategy. The compiling stage involves converting the code into machine language. The OPcache stores the precompiled scripts in shared memory. Hence, there isn’t any requirement for loading and parsing the script at each request. The use of OPcache is because it can allow directly launching and executing the program. Only the new updates are compiled and then stored for the subsequent request. However, the experts must evaluate the optimal options first before suggesting them for use. Then, you can integrate the OPcache feature and undertake a performance test. It will improve the website speed. 

Deploying PHP applications on the cloud

When the development is complete, the developers must install the PHP applications on the cloud. It helps in enhancing the performance of the applications. If the servers are fast, it will allow more rapid processing of the requests. With the low cost of dedicated storage, it is safer to opt for dedicated servers. Several service providers can help you to install the applications on the cloud. Developers can quickly do the configurations with a few clicks.

Keeping the PHP versions upgraded

The developers must always use the upgraded versions of all the applications. It will help them work with the latest features and functionalities. One critical PHP performance tuning method is working on upgraded PHP versions.

The new PHP versions have improved security features and enhanced performance. However, if you are still using lower PHP versions, you must use the services of expert migration services providers and upgrade the PHP version.

The latest version – PHP 8, was launched in November 2020. One of the features of this version includes just in time compilation. It readily translates PHP into machine code. It gets executed in the CPU. Enabling and disabling the JIT is easy too. This JIT tool helps in enhancing memory usage and PHP performance.

Benefits of load balancing

Load balancing can help in optimising the infrastructure. There are various plug-ins, and developers can utilize several techniques. You must bear in mind to avoid session objects. You can also do some prioritizations in server assignments. Also, do not store images on the server; instead, the cloud is better. Also, check the servers you use in the hardware configuration. Some of them can help more in load balancing.

Using a CDN is Necessary

One of the best ways to improve website speed is using a CDN (Content Delivery Network). It is ideal for high-traffic websites that cater to a global audience. In addition, it is suitable for larger businesses that try to increase their geographic outreach. Many top brands already use a CDN system. It can help applications to remain secure and minimise bandwidth consumption and latency. It can also prevent hackers and spammers from accessing your applications.


PHP has grown to be a robust framework and finds use and finds use in multiple industries. One of the critical points for developers is that they must tune PHP performance to ensure it performs optimally for users. Several methods can help them find the root cause of the issues and address them accordingly. It would help to discuss the factors to consider when undertaking PHP performance tuning with the experts. If you plan to build an application, they can also help by suggesting the best PHP framework for website development. There are many PHP experts on our team with sizable experience. You can connect with us and take the services of our PHP experts.