php SimpleXml 到字符串
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SimpleXml to string
提问by liysd
Is there any function that makes string from PHP SimpleXMLElement?
是否有任何函数可以从 PHP 生成字符串SimpleXMLElement？
回答by Tim Cooper
You can use the SimpleXMLElement::asXML()method to accomplish this:
您可以使用该SimpleXMLElement::asXML()方法来完成此操作：
$string = "<element><child>Hello World</child></element>";
$xml = new SimpleXMLElement($string);
// The entire XML tree as a string:
// "<element><child>Hello World</child></element>"
$xml->asXML();
// Just the child node as a string:
// "<child>Hello World</child>"
$xml->child->asXML();
回答by Nicolay77
You can use casting:
您可以使用铸造：
<?php
$string = "<element><child>Hello World</child></element>";
$xml = new SimpleXMLElement($string);
$text = (string)$xml->child;
$text will be 'Hello World'
$text 将是“Hello World”
回答by codaddict
回答by tolginho
Actually asXML() converts the string into xml as it name says:
实际上 asXML() 将字符串转换为 xml，正如它的名字所说：
<id>5</id>
This will display normally on a web page but it will cause problems when you matching values with something else.
这将正常显示在网页上，但是当您将值与其他内容匹配时会导致问题。
You may use strip_tags function to get real value of the field like:
您可以使用 strip_tags 函数来获取字段的实际值，例如：
$newString = strip_tags($xml->asXML());
PS: if you are working with integers or floating numbers, you need to convert it into integer with intval()or floatval().
PS：如果您正在处理整数或浮点数，则需要使用intval()或floatval()将其转换为整数。
$newNumber = intval(strip_tags($xml->asXML()));
回答by Leander
You can use ->childto get a child element named child.
您可以使用->child来获取名为child的子元素。
This element will contain the text of the childelement.
此元素将包含子元素的文本。
But if you try var_dump()on that variable, you will see it is not actually a PHP string.
但是，如果您尝试var_dump()使用该变量，您会发现它实际上并不是一个 PHP 字符串。
The easiest way around this is to perform a strval(xml->child);That will convert it to an actual PHP string.
解决此问题的最简单方法是执行strval(xml->child);That 将其转换为实际的 PHP 字符串。
This is useful when debugging when looping your XML and using var_dump()to check the result.
在循环 XML 并var_dump()用于检查结果时进行调试时，这很有用。
So $s = strval($xml->child);.
所以$s = strval($xml->child);。
回答by paralaks
Here is a function I wrote to solve this issue (assuming tag has no attributes). This function will keep HTML formatting in the node:
这是我为解决此问题而编写的函数（假设标签没有属性）。此函数将在节点中保留 HTML 格式：
function getAsXMLContent($xmlElement)
{
$content=$xmlElement->asXML();
$end=strpos($content,'>');
if ($end!==false)
{
$tag=substr($content, 1, $end-1);
return str_replace(array('<'.$tag.'>', '</'.$tag.'>'), '', $content);
}
else
return '';
}
$string = "<element><child>Hello World</child></element>";
$xml = new SimpleXMLElement($string);
echo getAsXMLContent($xml->child); // prints Hello World
回答by Luca Reghellin
Sometimes you can simply typecast:
有时您可以简单地进行类型转换：
// this is the value of my $xml
object(SimpleXMLElement)#10227 (1) {
[0]=>
string(2) "en"
}
$s = (string) $xml; // returns "en";
回答by Keenan Stewart
Probablydepending on the XML feed you may/may not need to use __toString(); I had to use the __toString()otherwise it is returning the string inside an SimpleXMLElement. Maybe I need to drill down the object further ...
可能取决于您可能/可能不需要使用的 XML 提要__toString()；我必须使用__toString()否则它会返回 SimpleXMLElement 内的字符串。也许我需要进一步深入研究对象......
