WP_CLI\Loggers

Regular::warning │ public │ WP-CLI 1.0

Write a warning message to STDERR, prefixed with "Warning: ".

Method of the class: Regular{}

No Hooks.

Returns

null. Nothing (null).

Usage

$Regular = new Regular();
$Regular->warning( $message );
$message(string) (required)
Message to write.

Regular::warning() code WP-CLI 2.13.0-alpha

wp-cli/php/WP_CLI/Loggers/Regular.php 
public function warning( $message ) {
	$this->_line( $message, 'Warning', '%C', STDERR );
}