php xmlreader not returning complete data - php

Question

Hello I am trying to get all the data from XML File , so i have used xmltoassoc function. It is working for 5 mb file but not for more than 9mb file.
Here is my code:
I have modified this function to get json code,
function xml2assoc($xml, $name)
{
$tree = null;
while($xml->read())
{
if($xml->nodeType == XMLReader::END_ELEMENT)
{
return $tree;
}
else if($xml->nodeType == XMLReader::ELEMENT)
{
$node = array();
if($xml->hasAttributes)
{
$attributes = array();
while($xml->moveToNextAttribute())
{
$attributes[$xml->name] = $xml->value;
}
}
if(!$xml->isEmptyElement)
{
$childs = xml2assoc($xml, $node['tag']);
if(isset($childs['text']))
{
$tree = $childs;
} else {
$tree['text'] = $childs[0];
}
}
}
else if($xml->nodeType == XMLReader::TEXT)
{
if(isset($xmlArr['text']))
{
$tree = $xmlArr;
} else {
$tree['text'] = $xmlArr[0];
}
}
}
return $tree;
}
I have used this function to return JSON by passing URL.
function PARSE_XML_JSON($url)
{
$text = "";
$xml = new XMLReader();
$xml->open($url);
$assoc = xml2assoc($xml, "root");
$xml->close();
if(isset($assoc['text']))
{
$text = $assoc['text'];
}
//StoreInTxtFile($text);
return $text;
}
I have also tried to save data in files by doing this:
function StoreInTxtFile($data)
{
$myFile = 'jsonfile-'.time().'.txt';
$fh = fopen($myFile, 'w') or die("can't open file");
fwrite($fh, $data);
fclose($fh);
}
Please tell me what i'm missing.
Thanks

Answer 1

use LIBXML_PARSEHUGE
$xml = new XMLReader();
$xml->open($url, NULL, LIBXML_PARSEHUGE);