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DOMNode::getLineNo

(PHP 5 >= 5.3.0)

DOMNode::getLineNoGet line number for a node

Beschreibung

public int DOMNode::getLineNo ( void )

Gets line number for where the node is defined.

Parameter-Liste

Diese Funktion hat keine Parameter.

R├╝ckgabewerte

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

Beispiele

Beispiel #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());
?>

Das oben gezeigte Beispiel erzeugt folgende Ausgabe:

The <node> tag is defined in line 3

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User Contributed Notes 3 notes

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0
ruud at vanmelick dot com
10 months ago
The 65535 line number limit is no longer a problem when you use libxml 2.9 or higher, but you have to explicitly enable support for big line numbers:

<?php
define
('XML_PARSE_BIG_LINES', 4194304);
$dom = new DOMDocument;
$dom->loadXML($xml, XML_PARSE_BIG_LINES);
?>
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0
Anonymous
2 years ago
The DOMNode::getLineNo() method doesn't work properly due to a libxml2 bug.

https://bugzilla.gnome.org/show_bug.cgi?id=676026
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0
luke dot NOREPLY at webconnex dot com
3 years ago
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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