PHP traversal method of parsing xml string php soap xml parsing php parsing xml data php how to parse xm

The example in this article describes the method of php traversing and parsing xml strings. Share it with everyone for your reference, the details are as follows:

<&#63;php
$content = <<<XML
<&#63;xml version="1.0" encoding="UTF-8"&#63;>
<test>
  <global_setting>
    <ping_protocol>HTTP</ping_protocol>
    <ping_port>80</ping_port>
    <ping_path>/index.html</ping_path>
    <response_timeout>5000</response_timeout>
    <health_check_interval>3000</health_check_interval>
    <unhealthy_threshold>2</unhealthy_threshold>
    <healthy_threshold>3</healthy_threshold>
  </global_setting>
  <instances>
    <instance ip="192.168.234.121"/>
    <instance ip="192.168.234.28"/>
  </instances>
</test>
XML;
$test = new SimpleXMLElement($content);
//获得ping_protocol的值
$ping_protocol = $test->global_setting->ping_protocol;
echo "ping_protocol : $ping_protocol \n";
//打印出所有instance的IP
foreach ( $test->instances->instance as $instance) {
  echo "IP: {$instance['ip']} \n" ;
}
//这里经过测试,发现使用var_dump之类的似乎不能有效输出值,用echo比较顺利,
//还有就是上面的那个xml的例子可以去掉<&#63;xml version="1.0" encoding="UTF-8"&#63;> 
//也可以去掉头尾///的<<<xml,然后当做普通字符串那样对待,但是没有测试中文等

Readers who are interested in more PHP-related content can check out the special topics of this site: "Summary of PHP XML file operation skills", "Summary of php date and time usage", "Introduction Tutorial on PHP Object-Oriented Programming", "Comprehensive Collection of PHP Array Operation Skills", "Summary of PHP String Usage", "Introduction Tutorial on PHP+MySQL Database Operation" and "Summary of Common PHP Database Operation Skills"

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The above introduces the method of php traversing and parsing xml strings, including parsing xml and php. I hope it will be helpful to friends who are interested in PHP tutorials.