范例


When using simplexml to access a element the returned object may be a SimpleXMLElement instead of a string.


Example:


<?php

$string = <<<XML

<?xml version='1.0'?>

<document>

    <cmd>login</cmd>

    <login>Richard</login>

</document>

XML;

                                                                        

                                           

$xml = simplexml_load_string($string);

print_r($xml);

$login = $xml->login;

print_r($login);

$login = (string) $xml->login;

print_r($login);

?>



Expected result:

----------------

SimpleXMLElement Object

(

    [cmd] => login

    [login] => Richard

)

Richard

Richard


Actual result:

--------------

SimpleXMLElement Object

(

    [cmd] => login

    [login] => Richard

)

SimpleXMLElement Object

(

    [0] => Richard

)

Richard


But this is an intended behavior. See http://bugs.php.net/bug.php?id=29500

down

-6

mike at mike-griffiths dot co dot uk ¶

14 years ago


It is important that you select the correct method of loading the XML in depending on the format of your XML file.

If you use the wrong function to load it in you will get some strange errors.

down

-23

Kari P. ¶

13 years ago


To take care of proper error checking, one must use try-catch blocks:


<?php

try {

  $sxe = new SimpleXMLElement($xmlstring);

} catch (Exception $e) {

  echo "bad xml";

}

?>



To get rid of warnings, use @ in front of new:


<?php

try {

  $sxe = @new SimpleXMLElement($xmlstring);

} catch (Exception $e) {

  echo "bad xml";

}

?>

down

-33

info at accountr dot eu ¶

13 years ago


Instead of using  <?php eval($code) ?>

you can use this method,

<?php

$node = "node";

$XML = simplexml_load_file($file);

$text = (string)$XML->nodes->{$node}; // works
// or
$text2 = (string)$XML->{$node}->child; // also works fine

?>

I think it is much more easier instead of eval().

add a note

官方地址：https://www.php.net/manual/en/simplexml.examples.php

有任何技术问题请点击这里网站运营推广招聘

IT PHP 编程语言 Linux 开发编程科技 Elasticsearch HTML/CSS/XML 网络 JAVA NoSQL 数据库面试 C/C++ Golang Git 算法操作系统正则表达式 Redis 互联网 MySql JavaScript 运维软件国际架构设计 Mac OS TCP/IP Excel Vim Windows Socket Oracle VR MongoDB Python 运营 MemCache 商业硬件电子娱乐设计 nginx 摄影游戏 WordPress HTTP 团建数码电器

php7 安装fileinfo扩展 preg_split — 通过一个正则表达式分隔字符串 php位值,解决 PHP 中 usort 在值相同时改变原始位置的问题 [PHP] inet_pton/inet_ntop IP地址转换函数 array_multisort() 多字段排序 PHPMailer设置utf8 PHPMailer字符集CharSet ADORecordSet对象 adodb手册 PHP 8.1 [鸟哥]PHP_INT_MIN 和 -9223372036854775808 opcache预加载 Composer的Packagist资源 mysql面试题 [鸟哥]PHP FFI详解 - 一种全新的PHP扩展方式 PHP7添加redis扩展 adodb连接mysql多个数据库的问题 PHP获取指定函数定义在哪个文件中及行号 PHP mkdir()写出来的权限与mode值不符合 composer基本用法 PHP-FPM进程数的设定

略微加速

PHP官方手册 - 互联网笔记

范例

目录

User Contributed Notes 4 notes