PHP的代码运行出现的错误，不知道原因

 <?php
$str  = <<<EOD
 Example of string
spanning multiple lines
using heredoc syntax.
 EOD;

 /* 含有变量的更复杂示例 */
 class  foo
 {
    var  $foo ;
    var  $bar ;

    function  foo ()
    {
         $this -> foo  =  'Foo' ;
         $this -> bar  = array( 'Bar1' ,  'Bar2' ,  'Bar3' );
    }
}

 $foo  = new  foo ();
 $name  =  'MyName' ;

echo <<<EOT
 My name is " $name ". I am printing some  $foo -> foo .
Now, I am printing some  { $foo -> bar [ 1 ]} .
This should print a capital 'A': \x41
 EOT;
 ?> 


这个代码提示( ! ) Parse error: syntax error, unexpected $end in D:\wamp_code\test.php on line 29，也就是最后的"?>"错误，什么原因，大神

$this -> foo = 'Foo' ;
$this -> bar = array( 'Bar1' , 'Bar2' , 'Bar3' )

少了个分号

定界符“<<<”的后面紧接着的是定界标识符。标识符由字母、数字或下划线构成，并且不能以数字开始。结尾的标识符必须定格书写，其前不能有任何其他字符。

EOD;2处结束前面的空格都要去掉

$str  = <<<EOD
 Example of string
spanning multiple lines
using heredoc syntax.
EOD;

 /* 含有变量的更复杂示例 */
 class  foo
 {
    var  $foo ;
    var  $bar ;

    function  foo ()
    {
         $this -> foo  =  'Foo' ;
         $this -> bar  = array( 'Bar1' ,  'Bar2' ,  'Bar3' );
    }
}

 $foo  = new  foo ();
 $name  =  'MyName' ;

echo <<<EOT
My name is " $name ". I am printing some  $foo->foo .
Now, I am printing some  {$foo -> bar[1]} .
This should print a capital 'A': \x41
EOT;
//上面取对象属性要去掉->前后空格，要不是取$foo值会报错Object of class foo could not be converted to string。取数组值用{}界定好导入的变量，可以有空格