Note: This manual is provided for your convenience only - this is not the official source and may not be 100% up to date.
LXXIII. JSON Functions
As of PHP 5.2.0, the JSON extension is bundled and compiled into PHP by default.
Information for installing this PECL extension may be found in the manual chapter titled Installation of PECL extensions. Additional information such as new releases, downloads, source files, maintainer information, and a CHANGELOG, can be located here: http://pecl.php.net/package/json