The Windows Cache Extension for PHP is a PHP accelerator that is used to increase the speed of PHP applications running on Windows and Windows Server. Once the Windows Cache Extensions for PHP are enabled and loaded by the PHP engine – PHP applications can take advantage of the functionality without any code modifications.
Windows Cache Extension for PHP stores the PHP bytecode, the compiled version of the PHP script, in memory making it available when subsequent executions of the same script are needed helping to increase the overall PHP application performance. The use of Windows Cache Extension for PHP allows the PHP bytecode to be generated only once and to be reused each time the same PHP script is executed.
Windows Cache Extension for PHP helps to reduce the latency of file operations when PHP scripts are stored on remote UNC file shares. Windows Cache Extension for PHP includes a file system cache that is used to store the content of the PHP script files in shared memory, which reduces the amount of file system operations performed by PHP engine.
Windows Cache Extension for PHP caches the relation between relative and absolute file paths, reducing the number of relative path resolutions performed by the PHP engine. PHP applications that use many relative paths would perform faster given the conversion to absolute paths is performed only once.
You can download and install the extension using the Microsoft Web Platform Installer. Just click this button!