PHP is one of the most widely used programming languages. The easy-to-use features of PHP make this one of the most favored choices of software developers. But yes, just like the other website development languages and frameworks, PHP development also needs expertise and experience to end up with flawless and ROI-driven websites. Right from the designing till the testing, the developers need to be careful to create a bug-free site. In PHP too, there can be chances of errors, which can ultimately result in a slow and low-performing project. What to do in that case? How to improve the site’s performance built with PHP? Consult or hire PHP developers to do it for your business using the tips and tricks discussed here in this article. Before starting with site improvement, run benchmarks on the software and hardware for determining the performance parameters. Here are the tips you need to follow for a high performing PHP site: – Take advantage of the native PHP functions: Whenever and wherever possible, use the native functions of PHP instead of creating your own functions. This will not only help you to write your codes faster but will also help you to end up with a more efficient and bug-free result. Use JSON and not XML: Native PHP functions like json_decode and json_encode() help in making a website incredibly fast. This is the key reason to use JSON instead of XML. Remove the unnecessary calculations: When you are using the same value for different calculations, assign the value one single time in a variable at the beginning and use the variable wherever required for calculations. Use isset(): As compared to strlen(), sizeof(), and count(), use isset() as is a simpler and faster way to decide if the value is greater than zero or not. Close the database connections: Closing database connections and unsetting unnecessary variables can save memory thereby making the site faster and efficient. Use strong str functions: Use functions like str_replace and strstr instead of preg_replace to make a PHP site run faster. Stick with single quotes: Using single quotes instead of double quotes as double quotes check for the variables that can pull down the site’s performance and make it slow. Use three equal signs that is ‘===’: Since ‘===’ checks for a closed array, it is much faster than ‘==’ when doing comparisons. Identify database delays: PHP site performance issues not only occur because of the codes. The database can also be the reason for a slow PHP website. The data access layer or the entire database structure of a PHP site can account for 90 per cent of the execution time. Hence, the first thing you need to do is identify the database delays. Make sure to turn on the slow SQL logs to address and identify the slow SQL queries. If you find too many queries or use of a single query too many times during the execution, immediately make modifications to improve the site’s performance by reducing the database access time. Clean up the filesystem: Clean the filesystem of the project for inefficiencies. Also, ensure not to use the filesystem for session storage. Most significantly, use codes like file_exist(), filetime(), or filesize() as using these functions in the loops can improve the performance of your PHP site. Apart from these, monitoring the APIs carefully, restricting the database hits, and removing the unnecessary classes can also help in improving the performance of a PHP site.