首页 > 后端开发 > php教程 > php中simplexml_load_string使用实例分享_PHP教程

php中simplexml_load_string使用实例分享_PHP教程

WBOY
发布: 2016-07-13 10:37:35
原创
935 人浏览过

先用一段代码重现一下问题

乍一看,结果很让人费解:

复制代码 代码如下:

$string =
hello
world

EOF;

$data = simplexml_load_string($string);

print_r($data);
print_r($data->foo);
?>

乍一看,结果很让人费解:

复制代码 代码如下:

SimpleXMLElement Object
(
[foo] => Array
(
[0] => SimpleXMLElement Object
(
[bar] => hello
)
[1] => SimpleXMLElement Object
(
[bar] => world
)
)
)
SimpleXMLElement Object
(
[bar] => hello
)

明明print_r显示foo是一个有两个bar元素的数组,但是最后却仅仅显示了一个bar元素!
原因其实很简单,在如上所示simplexml_load_string的结果里,foo并不是数组,而是一个迭代对象!
可以这样确认:

复制代码 代码如下:

foreach ($data->foo as $v) print_r($v);
foreach ($data->children() as $v) print_r($v);

看来,print_r或者var_dump之类的表象并不完全可信,自己多留心吧。

假如我们获取的XML数据如下:(可以使用curl、fsockopen等方式获取)

复制代码 代码如下:



 你好
 
 Array;Array;Array;
 
  Haven't seen you for a long time. How are you?
  多日不见了,你好吗?
 

 
  Hello! How are you?
  嘿,你好?
 

 
  Hello, Brooks!How are you?
  喂,布鲁克斯!你好吗?
 

 
  Hi, Barbara, how are you?
  嘿,芭芭拉,你好吗?
 

 
  How are you? -Quite well, thank you.
  你好吗?-很好,谢谢你。
 


经过simplexml_load_string得到:

复制代码 代码如下:

SimpleXMLElement Object
(
    [@attributes] => Array
        (
            [num] => 219
            [id] => 219
            [name] => 219
        )

    [key] => 你好
    [pos] => SimpleXMLElement Object
        (
        )

    [acceptation] => Array;Array;Array;
    [sent] => Array
        (
            [0] => SimpleXMLElement Object
                (
                    [orig] => Haven't seen you for a long time. How are you?
                    [trans] => 多日不见了,你好吗?
                )

            [1] => SimpleXMLElement Object
                (
                    [orig] => Hello! How are you?
                    [trans] => 嘿,你好?
                )

            [2] => SimpleXMLElement Object
                (
                    [orig] => Hello, Brooks!How are you?
                    [trans] => 喂,布鲁克斯!你好吗?
                )

            [3] => SimpleXMLElement Object
                (
                    [orig] => Hi, Barbara, how are you?
                    [trans] => 嘿,芭芭拉,你好吗?
                )

            [4] => SimpleXMLElement Object
                (
                    [orig] => How are you? -Quite well, thank you.
                    [trans] => 你好吗?-很好,谢谢你。
                )

        )

)

我们在PHP语言中可以用以下方法取得我们想要的值:

复制代码 代码如下:

$data =

 你好
 
 Array;Array;Array;
 
  Haven't seen you for a long time. How are you?
  多日不见了,你好吗?
 

 
  Hello! How are you?
  嘿,你好?
 

 
  Hello, Brooks!How are you?
  喂,布鲁克斯!你好吗?
 

 
  Hi, Barbara, how are you?
  嘿,芭芭拉,你好吗?
 

 
  How are you? -Quite well, thank you.
  你好吗?-很好,谢谢你。
 


XML;
$xmldata = simplexml_load_string($data);
header("Content-Type: text/html; charset=UTF-8");
print_r($xmldata);
echo "
".trim($xmldata->sent[0]->orig); //Haven't seen you for a long time. How are you?
echo "
".trim($xmldata->key); //你好
?>

www.bkjia.comtruehttp://www.bkjia.com/PHPjc/735236.htmlTechArticle先用一段代码重现一下问题 乍一看,结果很让人费解: 复制代码 代码如下: ?php $string = EOF data foobarhello/bar/foo foobarworld/bar/foo /data EOF; $dat...
相关标签:
来源:php.cn
本站声明
本文内容由网友自发贡献,版权归原作者所有,本站不承担相应法律责任。如您发现有涉嫌抄袭侵权的内容,请联系admin@php.cn
热门教程
更多>
最新下载
更多>
网站特效
网站源码
网站素材
前端模板