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This article mainly explains the "what is the role of PHP DOMXPath in XML file parsing", the content of the article is simple and clear, easy to learn and understand, the following please follow the editor's ideas slowly in-depth, together to study and learn "what is the role of PHP DOMXPath in XML file parsing"!

Example of how to use PHP DOMXPath:

Load ($url)

$xpath = new DOMXPath ($dom)

$element = $xpath- > query ("/ xml_api_reply

/ weather/current_conditions ")-> item (0)

$condition = get_google_xml_data

($element, "condition")

$temp_c = get_google_xml_data

($element, "temp_c")

Echo 'Weather:', $condition,''

Echo 'temperature:', $temp_c,''

Function get_google_xml_data

($element, $tagname) {

$tags = $element- >

GetElementsByTagName ($tagname)

/ / get all the $tagname

If ($items- > length > 1) {

Return $items

}

$tag = $tags- > item (0)

/ / get * tags named with $tagname

If ($tag- > hasAttributes ()) {

/ / get data attribute

$attribute = $tag- >

GetAttribute ("data")

Return $attribute

} else {

Return false

}

}

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