src/Shared/Reference/ReferenceTrait.php
protected function checkValue(
        $value,
        /*# string */ $subject,
        /*# string */ $reference
    ) {
        // unknown reference found, leave it alone
        if (is_null($value)) {
            // exception thrown in resolveUnknown() already if wanted to
            return $subject;

        // malformed partial match, partial string, partial non-scalar
        } elseif ($subject != $reference) {
            throw new RuntimeException(
                Message::get(Message::MSG_REF_MALFORMED, $reference),
                Message::MSG_REF_MALFORMED
            );

        // full match, array or object
        } else {
            return $value;
        }
    }
protected function checkValue(
        $value,
        /*# string */ $subject,
        /*# string */ $reference
    ) {
        // unknown reference found, leave it alone
        if (is_null($value)) {
            // exception thrown in resolveUnknown() already if wanted to
            return $subject;

        // malformed partial match, partial string, partial non-scalar
        } elseif ($subject != $reference) {
            throw new RuntimeException(
                Message::get(Message::MSG_REF_MALFORMED, $reference),
                Message::MSG_REF_MALFORMED
            );

        // full match, array or object
        } else {
            return $value;
        }
    }
protected function checkValue ( $ value , /*# string */ $ subject , /*# string */ $ reference ) { // unknown reference found, leave it alone if ( is_null ( $ value ) ) { // exception thrown in resolveUnknown() already if wanted to return $ subject ; // malformed partial match, partial string, partial non-scalar } elseif ( $ subject != $ reference ) { throw new RuntimeException ( Message :: get ( Message :: MSG_REF_MALFORMED , $ reference ) , Message :: MSG_REF_MALFORMED ) ; // full match, array or object } else { return $ value ; } }
Check dereferenced value

@param  mixed $value
@param  string $subject the subject to dereference
@param  string $reference the matched whole reference
@return mixed
@throws RuntimeException if $subject malformed, like mix string & array
@access protected
Check dereferenced value