PHP JIT on business hosting

On business hosting plans, PHP JIT support has been added.

The standard OPcache caches operational code. This allows you to skip unnecessary repeated analysis, parsing, and compilation operations when running code that has already been run before and has not been modified. This makes it faster for the Zend virtual machine to retrieve the operational code and execute it.

JIT (Just-In-Time) works in combination with OPcache and compiles code into processor instructions directly at runtime, so that some code is executed without a Zend virtual machine at all and is passed directly to the processor for execution. This allows code to execute even faster than with OPcache without JIT.

The effect of using JIT is more noticeable with code that performs active calculations and intensively uses processor resources, and less noticeable with a large number of I/O operations.

JIT is available in PHP 8.0 and higher. OPcache must be enabled for it to work. ionCube must be disabled.

More information about OPcache and JIT can be found in our wiki.