Post by account_disabled on Dec 24, 2023 4:21:41 GMT
Preloading is the process of loading libraries and frameworks into the in the module initialization phase (more information on the PHP lifecycle ). The PHP life cycle The PHP Lifecycle (image source: PHP Internals ) Here's how Preloading works in Dmitry's words: When the server starts – before any application code is executed – we can load a certain set of PHP files into memory and make their contents “permanently available” to all subsequent requests that will be served by that server. All functions and classes defined in these files will be available for requests natively, just like internal entities. These files are loaded when the server starts, run before any application, and remain available for future requests.
It's fantastic in terms of performance. Preloading is controlled by a specific directive php.ini. This directive Buy Bulk SMS Service specifies a PHP script to compile and run when the server starts. This file can be used to preload additional files, either by including them or via the function read more about this in the PHP documentation ). But there is a flip side to the coin. In fact, the RFC explicitly states: preloaded files remain stored in memory forever. Changing the corresponding source files will have no effect without another server reboot. However, all functions defined in the preloaded files will be permanently loaded into the PHP function and class tables and will remain available for any future requests.
This will lead to good performance improvements, although these improvements may be considerably variable. You can read more about Preloading limitations and exceptions on the official RFC page . New Mechanism for Custom Serialization of Objects This is another proposal from Nikita Popov approved with a large majority of votes. Currently, we have two different mechanisms for custom object serialization in PHP: The magic methods According to Nikita, both of these solutions have problems that lead to complex and unreliable code. You can learn more about this in the RFC . Here I will just say that the new serialization mechanism should prevent these problems by providing two new magic methods, which combine the two existing mechanisms.
It's fantastic in terms of performance. Preloading is controlled by a specific directive php.ini. This directive Buy Bulk SMS Service specifies a PHP script to compile and run when the server starts. This file can be used to preload additional files, either by including them or via the function read more about this in the PHP documentation ). But there is a flip side to the coin. In fact, the RFC explicitly states: preloaded files remain stored in memory forever. Changing the corresponding source files will have no effect without another server reboot. However, all functions defined in the preloaded files will be permanently loaded into the PHP function and class tables and will remain available for any future requests.
This will lead to good performance improvements, although these improvements may be considerably variable. You can read more about Preloading limitations and exceptions on the official RFC page . New Mechanism for Custom Serialization of Objects This is another proposal from Nikita Popov approved with a large majority of votes. Currently, we have two different mechanisms for custom object serialization in PHP: The magic methods According to Nikita, both of these solutions have problems that lead to complex and unreliable code. You can learn more about this in the RFC . Here I will just say that the new serialization mechanism should prevent these problems by providing two new magic methods, which combine the two existing mechanisms.