Most of the time we need to convert the XML to array or JSON , but now I have to completed the requirement of converting XML to XPath which make our template easily geting the data from XML data source due to the Xpath mapping .Here is the function:
<?php
function sxiToXpath($sxi, $key = null, &$tmp = null)
{
$keys_arr = array();
for ($sxi->rewind(); $sxi->valid(); $sxi->next())
{
$sk = $sxi->key();
if (array_key_exists($sk, $keys_arr))
{
$keys_arr[$sk]+=1;
$keys_arr[$sk] = $keys_arr[$sk];
}
else
{
$keys_arr[$sk] = 1;
}
}
for ($sxi->rewind(); $sxi->valid(); $sxi->next())
{
$sk = $sxi->key();
if (!isset($$sk))
{
$$sk = 1;
}
if ($keys_arr[$sk] >= 1)
{
$spk = $sk . '[' . $$sk . ']';
$keys_arr[$sk] = $keys_arr[$sk] - 1;
$$sk++;
}
else
{
$spk = $sk;
}
$kp = $key ? $key . '/' . $spk : '/' . $sxi->getName() . '/' . $spk;
if ($sxi->hasChildren())
{
sxiToXpath($sxi->getChildren(), $kp, $tmp);
}
else
{
$tmp[$kp] = strval($sxi->current());
}
$at = $sxi->current()->attributes();
if ($at)
{
$tmp_kp = $kp;
foreach ($at as $k => $v)
{
$kp .= '/@' . $k;
$tmp[$kp] = $v;
$kp = $tmp_kp;
}
}
}
return $tmp;
}
function xmlToXpath($xml)
{
$sxi = new SimpleXmlIterator($xml);
return sxiToXpath($sxi);
}
$xml = <<<EOT
<?xml version="1.0" encoding="utf8" ?>
<data>
<item ID="30001">
<Company>Navarro Corp.</Company>
</item>
<item ID="30002" IDd="30002">
<Company>Performant Systems</Company>
</item>
<item ID="30003">
<Company id='id_test'><g id='id_g'>glove</g></Company>
</item>
<item>
</item>
</data>
EOT;
$rs = xmlToXpath($xml);
print_r($rs);
echo "Total:" . count($rs);
echo "<hr>";
$xml = new SimpleXMLElement($xml);
foreach ($rs as $k => $v)
{
echo "Xpath:" . $k . " |Value:" . $v . " ";
var_dump($xml->xpath($k));
echo "<br>";
}
