<?PHP

$filename = "LTE DATA_UC_UT.xml";    
$fp = fopen($filename, "r");//open file in read mode   
$contents = fread($fp, filesize($filename));//read file
//$contents = '';
$cnt=1;
$cnt1=0;
$tdf_id_start =1;
while ($cnt ==1){
    $tdf_id_first = strpos($contents,'<Node OfferId="',$tdf_id_start);
    $tdf_id_second = strpos($contents,'"',$tdf_id_first+15);
     $cnt1++;
     //echo $tdf_id_first."\n";
     //echo $tdf_id_second."\n";
     //if($cnt1==2)
     //exit();     
    
    if($tdf_id_first>0){        
    $offer = substr($contents,$tdf_id_first+15,$tdf_id_second-($tdf_id_first+15));
    echo $offer;    

    $replac_str1= 'BooleanOperator<Operation>AND</Operation><Condition>ActiveOffer<ActiveOffer>'.$offer.'</ActiveOffer></Condition><Condition>FieldSelection<Field Context="ALL fields" condition="String" field="3GPP-SGSN-MCC-MNC"/><Text>63510</Text><Comparation>3</Comparation><MatchCase>false</MatchCase></Condition><Condition>';
    $replac_str2= 'FieldSelection<Field Context="ALL fields" condition="UsageCounter" field="UsageThreshold">';
    //$replac_str3= 'UT<Condition>BooleanOperator<Operation>AND</Operation><Condition>FieldSelection<Field Context="ALL fields" condition="UsageCounter" field="UsageThreshold">';
    }

    //first insert

    if($tdf_id_first>0 && $offer !=""){
        
        //echo $offer."\n";
        $tdf_id_third = strpos($contents,'FieldSelection<Field Context="ALL fields" condition="UsageCounter" field="UsageThreshold">',$tdf_id_second); 
        $contents =substr_replace($contents, $replac_str1, $tdf_id_third, 0);
           
     
    }
    $tdf_id_start= $tdf_id_third;
    $offer="";
    //$tdf_id_second=0;

    //echo $tdf_id_first."\n";
    //echo $tdf_id_second."\n";
    //echo $tdf_id_third."\n";
    //echo $tdf_id_fourth."\n";
    //$cnt= $tdf_id_start;
    if($tdf_id_first>0)
        $cnt=1;
    else
        $cnt=0;

    //echo $cnt1++;
   // echo "first".$tdf_id_first."offer".$offer;
   // if($cnt1 >0)
   //   $cnt=0;
}



$fp = fopen('LTE DATA_UC_UT.txt', 'a');
fwrite($fp,$contents);

echo "Done";
exit();

?>