-1

可能重复：
SimpleXML：如何查找顶级元素的子元素数量？
php计数xml元素

我有这个代码：

$string = <<<XML
<?xml version='1.0'?> 
<document>
 <title>Forty What?</title>
 <from>Joe</from>
 <to>Jane</to>
 <body>
  I know that's the answer -- but what's the question?
 </body>
</document>
XML;

$xml = simplexml_load_string($string);
$data_count = count($data->xml);
print_r($data_count);

我在线演示运行此代码

当我执行print_r($data_count);结果是“0”而不是10（字符串中的行）；

我应该怎么做才能包含变量中的原始数字$data_count？很多谢谢。

4

3 回答 3

1

你应该试试

$xml = simplexml_load_string($string);
print_r($xml->count()); // 4

演示

于 2012-09-04T10:47:35.480 回答
0

试试这个

$string = <<<XML
<?xml version='1.0'?> 
<document>
 <title>Forty What?</title>
 <from>Joe</from>
 <to>Jane</to>
 <body>
  I know that's the answer -- but what's the question?
 </body>
</document>
XML;

$xml = simplexml_load_string($string); 
$data_count = count($xml);//here you need to give the parser object
print_r($data_count);
echo count($xml->title); //No of title tags
于 2012-09-04T10:47:55.997 回答
0

你也可以这样尝试：

<?php

$string = "XML
<?xml version='1.0'?> 
  <document>
    <title>Forty What?</title>
    <from>Joe</from>
    <to>Jane</to>
    <body>
      I know that's the answer -- but what's the question?
    </body>
  </document>
XML";

$array = explode( "\r", $string );

print_r( sizeof( $array ) );

?>
于 2012-09-04T10:50:56.713 回答