Getting XML file from another domain to Mysql database - php

Question

I'm trying to get xml information from an url to be imported into mysql trough a php script, but I'm having some trouble and my experience dosen't cover this area.
The XML is formed as this example:
<?xml version="1.0" encoding="utf-8" ?>
<rss version="2.0" xmlns:g="http://base.google.se/ns/1.0">
<channel>
<title></title>
<description></description>
<link></link>
<item>
<g:id></g:id>
<title></title>
<g:product></g:product>
</item>
<item>
<g:id></g:id>
<title></title>
<g:product></g:product>
</item>
and so on...
with the php script:
<?php
include '../connection-to-db.php';
$str_xml = file_get_contents('http://www.example.com/xmls/xmlfile.xml');
$library = new SimpleXMLElement($str_xml);
$arr = json_decode( json_encode($library) , true);
var_dump ($arr);
echo "Array got " .sizeof($arr['item']) . " items.<br> <br>";
if (sizeof($arr['item']) > 155555500) {
mysql_query("TRUNCATE TABLE google_stat");
$count = 0;
foreach ($arr['item'] as $shelf)
{
$gId = mysql_real_escape_string($shelf['g:id']);
$Title = mysql_real_escape_string($shelf['title']);
$gProductType = mysql_real_escape_string($shelf['g:product']);
mysql_query("INSERT INTO google_stat (gid, title, gcategory)
VALUES ('$gID', '$Title', '$gCategory')")
or die(mysql_error());
$count ++;
}
echo " Counted: " . $count . "inserts";
} else {
echo "Non counted, no insert done";
}
?>
Problem is when SimpleXMLElement it seems all items with g: in there names disappears when I look at the output, it dosen't even fint any items.
I've even tried with a localfile with same XML tree and can't even make that work.
I'm thankful for any help given, since I realize more and more I'm on deep water with this.
UPDATE:
<?php
include '../connection-to-db.php';
$str_xml = file_get_contents('http://www.example.com/xmls/xmlfile.xml');
$library = new SimpleXMLElement($str_xml);
$arr = json_decode( json_encode($library) , true);
echo "Array got " .sizeof($library->channel->item) . " items.<br> <br>";
if (sizeof($library->channel->item) > 100) {
mysql_query("TRUNCATE TABLE google_stat");
$count = 0;
foreach ($library->channel->item as $shelf)
{
$gId = (string) $shelf->children('g', TRUE)->id;
$Title = (string) $shelf->title;
$gProductType = $shelf->children('g', TRUE)->product;
echo $gId."<br />";
echo $Title."<br />";
echo $gProductType."<br />";
$count ++;
}
echo " Counted: " . $count . "inserts";
} else {
echo "Non counted, no insert done";
}
?>
Now I get the number of items in array, but $gId, $Title etc, dosen't echo any values.
Edit2: had to high array check, it works.

Answer 1

It has to do with the namespace prefix you want. You can access the g: items like so:
<?php
$str_xml = file_get_contents('test.xml');
$library = new SimpleXMLElement($str_xml);
$count = 0;
foreach ($library->channel->item as $shelf)
{
$gId = (string) $shelf->title;
$Title = (string) $shelf->children('g', TRUE)->id;
$gProductType = (string) $shelf->children('g', TRUE)->product;
echo $gId."<br />";
echo $Title."<br />";
echo $gProductType."<br />";
$count ++;
}
echo " Counted: " . $count . " inserts";
?>
See https://www.sitepoint.com/simplexml-and-namespaces/ for further reference.
xml.test
<?xml version="1.0" encoding="utf-8" ?>
<rss version="2.0" xmlns:g="http://base.google.se/ns/1.0">
<channel>
<title>product</title>
<description>lots of products</description>
<link>www.example.com</link>
<item>
<g:id>ID 1</g:id>
<title>Title 1</title>
<g:product>Product 1</g:product>
</item>
<item>
<g:id>ID 2</g:id>
<title>Title 2</title>
<g:product>Product 2</g:product>
</item>
</channel>
</rss>
Output:
Title 1
ID 1
Product 1
Title 2
ID 2
Product 2
Counted: 2 inserts