[edit] Last updated: Fri, 25 May 2012

DOMNode::getLineNo

(PHP 5 >= 5.3.0)

DOMNode::getLineNo — Get line number for a node

Descrierea

public int DOMNode::getLineNo ( void )

Gets line number for where the node is defined.

Parametri

Această funcție nu are parametri.

Valorile întoarse

Always returns the line number where the node was defined in.

Exemple

Example #1 DOMNode::getLineNo() example


<?php
// XML dump for below example
$xml = <<<XML
<?xml version="1.0" encoding="utf-8"?>
<root>
    <node />
</root>
XML;

// Create a new DOMDocument instance
$dom = new DOMDocument;

// Load the XML
$dom->loadXML($xml);

// Print where the line where the 'node' element was defined in
printf('The <node> tag is defined on line %d', $dom->getElementsByTagName('node')->item(0)->getLineNo());
?>

Exemplul de mai sus va afișa:

The <node> tag is defined in line 3

add a note User Contributed Notes DOMNode::getLineNo

Anonymous 19-May-2012 02:21


The DOMNode::getLineNo() method doesn't work properly due to a libxml2 bug. 



https://bugzilla.gnome.org/show_bug.cgi?id=676026

luke dot NOREPLY at webconnex dot com 04-Mar-2011 06:28


This function is buggy. It doesn't always return the correct line number, especially for text elements. As an alternative you can do something like this:



<?php

$text = $node->ownerDocument->saveXML($node);

$line += substr_count($text, "\n");

?>



You'll want to keep a reference to $line (starting at 0) and add to it as you parse over the document recursively.



In order for this to work you have to tell DOMDocument to preserve white space before loading the document.

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