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(PHP 5)
DOMElement::getAttribute — Returns value of attribute
Gets the value of the attribute with name name for the current node.
The name of the attribute.
The value of the attribute, or an empty string if no attribute with the given name is found.
I want to retrieve value of name in my current language, or the default, or anything set if none of the above are true.
There is a sample XML file:
<product>
<name lang="en">Candy</name>
<name lang="fr">Bonbon</name>
<name>Bonbon (no lang)</name>
</product>
There is my function, hope this can help. And if anybody want's to improve it, your welcom. The input elements are DOMNodeList returned from a previous DomXPath Query.
<?php
private function getValueByLang($elements) {
$a = array();
if (!is_null($elements)) {
foreach ($elements as $element) {
if( !is_null($element->attributes)) {
$is_lang = false;
foreach ($element->attributes as $attrName => $attrNode) {
if( 'lang' == $attrName ) {
$a[$attrNode->value] = $element->nodeValue;
$is_lang = true;
}
}
if( !$is_lang ) {
$a[] = $element->nodeValue;
}
}
}
// Returns current language if set.
if( array_key_exists($this->lang, $a)) {
$result = $a[$this->lang];
// Returns default language if set.
} elseif( array_key_exists($this->default_lang, $a)) {
$result = $a[$this->default_lang];
// Returns first result with no language attribute.
} elseif( isset($a[0])) {
$result = $a[0];
// Return anything set.
} elseif( $result = reset($a) ) {
// Return nothing, Doh!
} else {
$result = false;
}
return($result);
} else {
throw new Exception(printf("No elements defined."));
}
}
?>
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XML Data:
<data>
<Report ID="1">
<Date>REVIEW</Date>
<AuthorID>1</AuthorID>
</Report>
<Report ID="2">
<Date>REVIEW</Date>
<AuthorID>2</AuthorID>
</Report>
</data>
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<?php
$xmlDoc = new DOMDocument();
$xmlDoc->load( 'data.xml' );
$searchNode = $xmlDoc->getElementsByTagName( "Report" );
foreach( $searchNode as $searchNode )
{
$valueID = $searchNode->getAttribute('ID');
$xmlDate = $searchNode->getElementsByTagName( "Date" );
$valueDate = $xmlDate->item(0)->nodeValue;
$xmlAuthorID = $searchNode->getElementsByTagName( "AuthorID" );
$valueAuthorID = $xmlAuthorID->item(0)->nodeValue;
echo "$valueID - $valueDate - $valueAuthorID\n";
}
?>
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Output:
1 - REVIEW - 1
2 - REVIEW - 2
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