XMLReader::readString

(PHP 5 >= 5.2.0, PHP 7, PHP 8)

XMLReader::readString — Reads the contents of the current node as a string

说明

public XMLReader::readString ( ) : string

Reads the contents of the current node as a string.

参数

此函数没有参数。

返回值

Returns the content of the current node as a string. Empty string on failure.

注释

Caution

此函数仅在 PHP 与 libxml 20620 或以上版本编译时可用。

参见

XMLReader::readOuterXml() - Retrieve XML from current node, including itself
XMLReader::readInnerXml() - Retrieve XML from current node
XMLReader::expand() - Returns a copy of the current node as a DOM object

User Contributed Notes

alexander_behling at web dot de 25-Jan-2018 03:37


Important:

When using it use -> instead of ::.

You have to use :: only on static functions and then you have not to create a class object.

Lea Hayes 07-Jun-2011 01:51


I would like to reiterate that this does not work when compiled with versions of libxml lower than 20620. I found that it just presents a blank page.





<?php $string = $reader->readString(); ?>





I worked around this issue by adding the following helper function:





<?php


function read_string($reader) {


    $node = $reader->expand();


    return $node->textContent;


}


?>





And then using:





<?php $string = read_string($reader); ?>

Michael Rusch 18-May-2009 10:27


For those who, like me, are having trouble figuring out the difference between getString() an getInnerXML(), the difference is that getString() does NOT include markup.  So, for:



<foo>bar<baz>Hello, world!</baz></foo>



getString() on the <foo> node would return



bar Hello, world!



whereas getInnerXML() would return



bar<baz>Hello, world!</baz>