Function Reference Date and Time Related Extensions Calendar Installing/Configuring Installation Requirements Runtime Configuration Installation To get these functions to work, you have to compile PHP with --enable-calendar . The Windows version of PHP has built-in support for this extension. You do not need to load any additional extensions in order to use these functions.
Installation To get these functions to work, you have to compile PHP with --enable-calendar . The Windows version of PHP has built-in support for this extension. You do not need to load any additional extensions in order to use these functions.