php 使用 foreach() 解析 XML 子项
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Parse XML subitems using foreach()
提问by user
I have an XML file that needs parsing in PHP. I am currenlty using simplexml_load_file to load the file like so:
我有一个需要在 PHP 中解析的 XML 文件。我目前使用 simplexml_load_file 加载文件，如下所示：
$xml = simplexml_load_file('Project.xml');
Inside that XML file lies a structure like this:
在那个 XML 文件中有一个这样的结构：
<?xml version="1.0" encoding="ISO-8859-1"?>
<project>
<name>Project 1</name>
<features>
<feature>Feature 1</feature>
<feature>Feature 2</feature>
<feature>Feature 3</feature>
<feature>Feature 4</feature>
</features>
</project>
What I am trying to do is print the <name>contents along with EACH <feature>element within <features>. I'm not sure how to do this because there is more than 1 element called <feature>. Any help is greatly appreciated.
我所试图做的是打印的<name>内容与各自沿着<feature>内元素<features>。我不知道如何做到这一点，因为有超过 1 个元素被称为<feature>. 任何帮助是极大的赞赏。
回答by Puaka
to print the text, try this :
要打印文本，请尝试以下操作：
foreach($xml->features->feature as $key => $value)
{
echo $value;
}
回答by timdev
simplexml_load_file() returns an object.
simplexml_load_file() 返回一个对象。
Have a look at the structure with var_dump($xml):
看一下 var_dump($xml) 的结构：
object(SimpleXMLElement)#1 (2) {
["name"]=>
string(9) "Project 1"
["features"]=>
object(SimpleXMLElement)#2 (1) {
["feature"]=>
array(4) {
[0]=>
string(9) "Feature 1"
[1]=>
string(9) "Feature 2"
[2]=>
string(9) "Feature 3"
[3]=>
string(9) "Feature 4"
}
}
}
So code like this:
所以代码如下：
<?PHP
$xml = simplexml_load_file('test.xml');
echo $xml->name . "\n";
foreach($xml->features->feature as $f){
echo "\t$f\n";
}
Will produce output like:
将产生如下输出：
Project 1
Feature 1
Feature 2
Feature 3
Feature 4
Which is what I assume you're after, more or less.
这就是我假设你或多或少所追求的。
回答by codaddict
You can do:
你可以做：
foreach($xml->features->feature as $f) {
echo $f."\n";
}
