Now PHP is a very popular programming language with an ever expanding
universe of users. The fact that the language could be used for building
some really cool websites/applications means more and more developers
prefer the same as compared to others. A number of PHP extensions exist
that help improve the performance of software applications written in
PHP.
1.Alternative PHP Cache (APC)
Alternative PHP Cache is a free, open source framework that caches the output of the PHP bytecode compiler in shared memory, thus reducing parsing and disk I/O overhead for later requests; and a shared memory cache for user data. For an application consisting of a large source code base such as Drupal, a 3x increase in page generation speed is possible as a result.
2.XCache
XCache is a fast, stable PHP opcode cacher that has been tested and is now running on production servers under high load. It is tested on Linux and FreeBSD and supported under Windows, for thread-safe and non-thread-safe versions of PHP.
3.Nusphere PhpExpress
PhpExpress is a free PHP opcode cache that loads both Nu-Coder (commercial) encoded and plain PHP files directly into the PHP engine, saving loading time and boosting performance of PHP applications. It's available on Windows, Linux, FreeBSD, NetBSD, Mac OS X, and Solaris.
4.Zend Opcache
Zend Opcache is an open source component of Zend Server and Zend Server Community Edition. Zend Opcache speeds up PHP execution by opcode caching and optimisation. It stores precompiled script bytecode in shared memory. This eliminates the stages of reading code from the disk and compiling it on future access.
5.Windows Cache Extension for PHP
A free, open source (New BSD License), PHP accelerator developed by Microsoft for PHP under Windows. The extension includes PHP opcode cache, file cache, resolve file path cache, object/session cache, file change notifications and lock/unlock API's.
Alternative PHP Cache is a free, open source framework that caches the output of the PHP bytecode compiler in shared memory, thus reducing parsing and disk I/O overhead for later requests; and a shared memory cache for user data. For an application consisting of a large source code base such as Drupal, a 3x increase in page generation speed is possible as a result.
2.XCache
XCache is a fast, stable PHP opcode cacher that has been tested and is now running on production servers under high load. It is tested on Linux and FreeBSD and supported under Windows, for thread-safe and non-thread-safe versions of PHP.
3.Nusphere PhpExpress
PhpExpress is a free PHP opcode cache that loads both Nu-Coder (commercial) encoded and plain PHP files directly into the PHP engine, saving loading time and boosting performance of PHP applications. It's available on Windows, Linux, FreeBSD, NetBSD, Mac OS X, and Solaris.
4.Zend Opcache
Zend Opcache is an open source component of Zend Server and Zend Server Community Edition. Zend Opcache speeds up PHP execution by opcode caching and optimisation. It stores precompiled script bytecode in shared memory. This eliminates the stages of reading code from the disk and compiling it on future access.
5.Windows Cache Extension for PHP
A free, open source (New BSD License), PHP accelerator developed by Microsoft for PHP under Windows. The extension includes PHP opcode cache, file cache, resolve file path cache, object/session cache, file change notifications and lock/unlock API's.
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