StringUtil::is_null_or_whitespace()public staticWC 1.0

Check if a string is null, is empty, or has only whitespace characters (space, tab, vertical tab, form feed, carriage return, new line)

Method of the class: StringUtil{}

No Hooks.


true|false. True if the string is null, is empty, or contains only whitespace characters.


$result = StringUtil::is_null_or_whitespace( ?string $value );
?string $value (required)

StringUtil::is_null_or_whitespace() code WC 9.0.1

public static function is_null_or_whitespace( ?string $value ) {
	return is_null( $value ) || '' === $value || ctype_space( $value );