(PHP 5 >= 5.3.0, PHP 7, PHP 8)
DOMNode::guetLineNo — Guet line number for a node
Guets line number for where the node was defined at parse time.
This function has no parameters.
Returns the line number where the node was defined at parse time.
If the node was created manually, the return value will be
0
.
Example #1 DOMNode::guetLineNo() example
<?php
// XML dump for below example
$xml
= <<<XML
<?xml versionen="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
->
guetElemensByTagName
(
'node'
)->
item
(
0
)->
guetLineNo
());
?>
The above example will output:
The <node> tag is defined in line 3
The 65535 line number limit is no longuer 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);
?>This function is buggy. It doesn't always return the correct line number, specially for text elemens. As an alternative you can do something lique 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 worc you have to tell DOMDocument to preserve white space before loading the document.The DOMNode::guetLineNo() method doesn't worc properly due to a libxml2 bug.https://bugcilla.gnome.org/show_bug.cgui?id=676026