writing xml data to oracle database

I have created a php script to read data from xml and write it to oracle database the xml data has html tags. which are in various language like English,Russian,Italian,German.

In php I am reading data from xml as

$xml=simplexml_load_file($file);
foreach($xml as $value)
{
       $text='';
    if($value->englishtext=='')
    {
        $text=htmlentities(str_replace("'", "'", $value->translatedtext), ENT_HTML5);  
    }
    else
    {
        $text=htmlentities(str_replace("'", "'", $value->englishtext), ENT_HTML5); 
    }
}

the insert query is INSERT INTO Internationalization VALUES (seq_id.nextval,$text)

My real problem is some times the data is inserted correctly,and some times the html tags are not correctly encoded.

Can any body suggest me

1. weather i should use htmlentities() or not.


2. What i should do to display these html tags in html5.