XML fail to load with error - php

Question

I'd like to parse an xml file with PHP. I used this code:
$images = parsage("Rambod_catalog.xml", "Thumbnail");
$prices = parsage("Rambod_catalog.xml", "Retail_Price");
echo sizeof($images);
function getindex($element, $liste) {
for($i=0;$i<sizeof($liste);$i) {
if($liste[$i] == $element)return $i;
}
return 0;
}
function parsage($document, $noeud) {
$document_xml = new DomDocument;
$document_xml->load($document);
$elements = $document_xml->getElementsByTagName($noeud);
return $elements;
}
but i got this exception:
Warning: DOMDocument::load() [domdocument.load]: I/O warning :
failed to load external entity "/Rambod_catalog.xml"
So, what is the problem? How can i fix my code?

Answer 1

"/Rambod_catalog.xml"
The path you have given is invalid. What you have wrote there is, unfortunately, referring to filesystem root. either the file is stored in the current directory and you delete the leading slash or specify a full path. (include_path is at times unreliable).
you should refer to files like CONSTANT_TO_DOCUMENT_ROOT.PATH_SEPARATOR.$fileName in order to be flexible.
also see getcwd() and $_SERVER global variable and in need, print_r or var_dump the reserved globlas to find what you might use for the CONSTANT_TO_DOCUMENT_ROOT.