我需要获得每个" custom_field"的价值。命名" ZIP"使用PHP从以下XML文件中删除。 当我解析它时,我总是得到所有项目的值或空数组? 有人可以帮忙吗?
<?xml version="1.0" encoding="UTF-8"?>
<projects total_count="237" offset="0" limit="100" type="array">
<project>
<id>239</id>
<name>ABC</name>
<identifier></identifier>
<description></description>
<status>1</status>
<is_public>false</is_public>
<custom_fields type="array">
<custom_field id="18" name="Name affix">
<value></value>
</custom_field>
<custom_field id="20" name="ZIP">
<value>X1111</value>
</custom_field>
</custom_fields>
<created_on>2017-06-05T16:33:13Z</created_on>
<updated_on>2017-06-19T13:46:08Z</updated_on>
</project>
<project>
<id>240</id>
<name>DEF</name>
<identifier></identifier>
<description></description>
<status>1</status>
<is_public>false</is_public>
<custom_fields type="array">
<custom_field id="18" name="Name affix">
<value></value>
</custom_field>
<custom_field id="20" name="ZIP">
<value>Y2222</value>
</custom_field>
</custom_fields>
<created_on>2017-06-05T16:33:14Z</created_on>
<updated_on>2017-06-05T16:33:14Z</updated_on>
</project>
...
我尝试了以下操作并获得了空数组:
$projects = simplexml_load_file($rm_host."/projects.xml?key=".$rm_sa_key."&limit=100");
foreach($projects->project as $project){
$zip = $project->xpath('//custom_field[@name="ZIP"]');
print_r($zip);
echo "<br/>";
}
当我尝试用以下内容替换字符串时,它返回所有项目的值,而不是特定项目的值:
zip = $project->xpath('//custom_fields[@type="array"]/custom_field[@name="ZIP"]')
答案 0 :(得分:0)
最后在尝试和尝试后工作。
获取特定值的正确字符串是:
$zip = $project->custom_fields->xpath('custom_field[@name="ZIP"]/value')[0];
在xpath前没有斜杠。