Get all of the public, protected, and private methods on WP-API classes

class-methods.php

<?php

/**
 * Get all of the public, protected, and private methods on WP-API classes
 *
 * Run with `wp eval-file class-methods.php`
 */
foreach( get_declared_classes() as $class ) {
	if ( ! preg_match( '#WP_REST_([A-Za-z_]+)?Controller#', $class ) ) {
		continue;
	}
	WP_CLI::log( $class );
	$reflection = new ReflectionClass( $class );
	$get_name = function( $methods ) use ( $class ) {
		$names = array();
		foreach( $methods as $method ) {
			if ( $method->class !== $class ) {
				continue;
			}
			$names[] = $method->name;
		}
		return $names;
	};
	$methods = array(
		'public'       => $get_name( $reflection->getMethods( ReflectionMethod::IS_PUBLIC ) ),
		'protected'    => $get_name( $reflection->getMethods( ReflectionMethod::IS_PROTECTED ) ),
		'private'      => $get_name( $reflection->getMethods( ReflectionMethod::IS_PRIVATE ) ),
	);
	$table = new \cli\Table;
	$table->setHeaders( array( 'public', 'protected', 'private' ) );
	$rows = array();
	for ( $i=0; $i < 40; $i++) {
		if ( empty( $methods['public'][ $i ] ) && empty( $methods['protected'][ $i ] ) && empty( $methods['private'][ $i ] ) ) {
			break;
		}

		$row = array();
		foreach( array( 'public', 'protected', 'private' ) as $type ) {
			if ( isset( $methods[ $type ][ $i ] ) ) {
				$row[] = $methods[ $type ][ $i ];
			} else {
				$row[] = '';
			}
		}
		$rows[] = $row;
	}
	$table->setRows( $rows );
	$table->display();
}