WP_CLI::add_command() Edit

Register a command to WP-CLIWP-CLI WP-CLI is the Command Line Interface for WordPress, used to do administrative and development tasks in a programmatic way. The project page is http://wp-cli.org/ https://make.wordpress.org/cli/.

Usage Usage

WP_CLI::add_command( $name, $callable, $args = array() )
$name (string) Name for the command (e.g. “post list” or “site empty”).
$callable (callable) Command implementation as a class, function or closure.
$args (array) {
Optional. An associative array with additional registration parameters.
@type callable $before_invoke Callback to execute before invoking the command.
@type callable $after_invoke Callback to execute after invoking the command.
@type string $shortdesc Short description (80 char or less) for the command.
@type string $longdesc Description of arbitrary length for examples, etc.
@type string $synopsis The synopsis for the command (string or array).
@type string $when Execute callback on a named WP-CLI hook (e.g. before_wp_load).
@type bool $is_deferred Whether the command addition had already been deferred.
@return (bool) on success, false if deferred, hard error if registration failed.

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Notes Notes

WP-CLI supports using any callable class, function, or closure as a
command. WP_CLI::add_command() is used for both internal and
third-party command registration.

Command arguments are parsed from PHPDoc by default, but also can be
supplied as an optional third argument during registration.

# Register a custom 'foo' command to output a supplied positional param.
# $ wp foo bar --append=qux
# Success: bar qux

 * My awesome closure command
 * <message>
 * : An awesome message to display
 * --append=<message>
 * : An awesome message to append to the original message.
 * @when before_wp_load
$foo = function( $args, $assoc_args ) {
    WP_CLI::success( $args[0] . ' ' . $assoc_args['append'] );
WP_CLI::add_command( 'foo', $foo );

Internal APIAPI An API or Application Programming Interface is a software intermediary that allows programs to interact with each other and share data in limited, clearly defined ways. documentation is generated from the WP-CLI codebase on every release. To suggest improvements, please submit a pull request.

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  • WP_CLI::add_hook() – Schedule a callback to be executed at a certain point.
  • WP_CLI::do_hook() – Execute callbacks registered to a given hook.
  • WP_CLI::add_wp_hook() – Add a callback to a WordPress action or filterFilter Filters are one of the two types of Hooks https://codex.wordpress.org/Plugin_API/Hooks. They provide a way for functions to modify data of other functions. They are the counterpart to Actions. Unlike Actions, filters are meant to work in an isolated manner, and should never have side effects such as affecting global variables and output..

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