src/Transformer/ValueTransformer.php
public function isBlank($value)
    {
        // Be very sure!
        if ($value === null || strlen($value) === 0 || trim($value) === '') {
            return true;
        }

        return false;
    }
public function isBlank($value)
    {
        // Be very sure!
        if ($value === null || strlen($value) === 0 || trim($value) === '') {
            return true;
        }

        return false;
    }
public function isBlank ( $ value ) { // Be very sure! if ( $ value === null || strlen ( $ value ) === 0 || trim ( $ value ) === '' ) { return true ; } return false ; }
Check if the value is blank or not.

@param mixed $value

@return bool
Check if the value is blank or not .