--TEST--
Test Plus Assignment
--FILE--
<? php $a += 1;? >
--EXPECT--
<Program start='0' length='16'>
	<Statements>
		<ExpressionStatement start='6' length='8'>
			<Assignment start='6' length='7' operator='+='>
				<Variable start='6' length='2' isDollared='true'>
					<Identifier start='7' length='1' name='a'/>
				</Variable>
				<Value>
					<Scalar start='12' length='1' type='int' value='1'/>
				</Value>
			</Assignment>
		</ExpressionStatement>
		<EmptyStatement start='14' length='2'/>
	</Statements>
	<Comments>
	</Comments>
</Program>