xml loading error

[raselcse10]

I am facing "DOMDocument::loadXML(): Empty string supplied" error in my development. In my server i can't see any error but when i run this same script from my development server i'm getting this error and can't proceed my development.

To review my code please go https://pastebin.com/6W8e3FZY and let me know why i'm getting below error.

Warning: DOMDocument::loadXML(): Empty string supplied as input in /var/www/html/dev.travel.com/success.php on line 89

Warning: simplexml_load_file(): I/O warning : failed to load external entity " " in /var/www/html/dev.travel.com/success.php on line 103

Fatal error: Encoding Error! in /var/www/html/dev.travel.com/success.php on line 108

Waiting for your quick response because of my beta version release date knocking my door.

[vivekjyotipramanik]

Hi raselcse10,

Could you please confirm you are sending proper password in the code. In the code it is written as 'my password'. Thanks.

[raselcse10]

Hello vivekjyotipramanik,

Yes i am sending proper target branch no and password. Due to this public place i set this information to mypassword.

[raselcse10]

Hello vivekjyotipramanik,

Check your email.

[vivekjyotipramanik]

Hi raselcse10,

I have not received the mail yet. Thanks.

[raselcse10]

check now

[raselcse10]

check now

[vivekjyotipramanik]

Hi raselcse10,

I have received it. We will check this and will provide an update. Thanks.

[raselcse10]

ok i will wait for your response.

[vivekjyotipramanik]

Hi raselcse10,

The taregtBranch in the first line of the xml request should be assigned as $TARGETBRANCH. I have changed that and now the code is working fine and sending back response. Please find below the updated code. Please let us know how it goes. Thanks.

<?php

error_reporting(E_ALL);
ini_set('display_errors', 1);

$TARGETBRANCH = "targetBranch";
$CREDENTIALS = "Universal API/uAPI1711256462-9d2cbace:password";
$Provider = "1G";

$message = <<<EOM

<soapenv:Envelope xmlns:soapenv="http://schemas.xmlsoap.org/soap/envelope/">
<soapenv:Header/>
  <soapenv:Body>
<LowFareSearchReq xmlns="http://www.travelport.com/schema/air_v42_0" TraceId="trace" TargetBranch="$TARGETBRANCH" ReturnUpsellFare="true">
  <BillingPointOfSaleInfo xmlns="http://www.travelport.com/schema/common_v42_0" OriginApplication="uAPI" />
  <SearchAirLeg>
    <SearchOrigin>
      <CityOrAirport xmlns="http://www.travelport.com/schema/common_v42_0" Code="DAC" PreferCity="true" />
    </SearchOrigin>
    <SearchDestination>
      <CityOrAirport xmlns="http://www.travelport.com/schema/common_v42_0" Code="HKG" PreferCity="true" />
    </SearchDestination>
    <SearchDepTime PreferredTime="2017-10-09" />
  </SearchAirLeg>
  <SearchAirLeg>
    <SearchOrigin>
      <CityOrAirport xmlns="http://www.travelport.com/schema/common_v42_0" Code="HKG" PreferCity="true" />
    </SearchOrigin>
    <SearchDestination>
      <CityOrAirport xmlns="http://www.travelport.com/schema/common_v42_0" Code="DAC" PreferCity="true" />
    </SearchDestination>
    <SearchDepTime PreferredTime="2017-10-29" />
  </SearchAirLeg>
  <AirSearchModifiers>
    <PreferredProviders>
      <Provider xmlns="http://www.travelport.com/schema/common_v42_0" Code="1G" />
    </PreferredProviders>
  </AirSearchModifiers>
  <SearchPassenger xmlns="http://www.travelport.com/schema/common_v42_0" Code="ADT" />
  <SearchPassenger xmlns="http://www.travelport.com/schema/common_v42_0" Code="CNN" Age="8" DOB="2009-09-18" />
  <SearchPassenger xmlns="http://www.travelport.com/schema/common_v42_0" Code="INF" Age="0" DOB="2017-09-18" />
  <AirPricingModifiers>
    <AccountCodes>
      <AccountCode xmlns="http://www.travelport.com/schema/common_v42_0" Code="-" />
    </AccountCodes>
  </AirPricingModifiers>
</LowFareSearchReq>
  </soapenv:Body>
</soapenv:Envelope>

EOM;

$file = "001-".$Provider."_AirAvailabilityReq.xml"; // file name to save the request xml for test only(if you want to save the request/response)
prettyPrint($message,$file);//call function to pretty print xml

$auth = base64_encode("$CREDENTIALS");
$soap_do = curl_init ("https://apac.universal-api.pp.travelport.com/B2BGateway/connect/uAPI/AirService");
$header = array(
    "Content-Type: text/xml;charset=UTF-8",
    "Accept: gzip,deflate",
    "Cache-Control: no-cache",
    "Pragma: no-cache",
    "SOAPAction: \"\"",
    "Authorization: Basic $auth",
    "Content-length: ".strlen($message),
);
curl_setopt($soap_do, CURLOPT_CONNECTTIMEOUT, 60);
curl_setopt($soap_do, CURLOPT_TIMEOUT, 60);
curl_setopt($soap_do, CURLOPT_SSL_VERIFYPEER, false);
curl_setopt($soap_do, CURLOPT_SSL_VERIFYHOST, false);
curl_setopt($soap_do, CURLOPT_POST, true );
curl_setopt($soap_do, CURLOPT_POSTFIELDS, $message);
curl_setopt($soap_do, CURLOPT_HTTPHEADER, $header);
curl_setopt($soap_do, CURLOPT_RETURNTRANSFER, true); // this will prevent the curl_exec to return result and will let us to capture output
$return = curl_exec($soap_do);

$file = "001-".$Provider."_AirAvailabilityRsp.xml"; // file name to save the response xml for test only(if you want to save the request/response)

$content = prettyPrint($return,$file);

parseOutput($content);

//Pretty print XML
function prettyPrint($result,$file){
    $dom = new DOMDocument;
    $dom->preserveWhiteSpace = false;
    $dom->loadXML($result);
    $dom->formatOutput = true;
    outputWriter($file,$dom->saveXML());
    return $dom->saveXML();
}

//function to write output in a file
function outputWriter($file,$content){
    file_put_contents($file, $content); // Write request/response and save them in the File
}

function parseOutput($content){ //parse the Search response to get values to use in detail request
    $AirAvailabilitySearchRsp = $content; //use this if response is not saved anywhere else use above variable
    $xml = simplexml_load_String("$AirAvailabilitySearchRsp", null, null, 'SOAP', true);
    // $xml = simplexml_load_file($AirAvailabilitySearchRsp);

    if($xml)
        echo "Processing! Please wait!";
    else{
        trigger_error("Encoding Error!", E_USER_ERROR);
    }

    $Results = $xml->children('SOAP',true);
    foreach($Results->children('SOAP',true) as $fault){
        if(strcmp($fault->getName(),'Fault') == 0){
            trigger_error("Error occurred request/response processing!", E_USER_ERROR);
        }
    }

    $count = 0;
    $fileName = "flights.txt";
    if(file_exists($fileName)){
        file_put_contents($fileName, "");
    }

    $searchResult = [];

    foreach($Results->children('air',true) as $nodes){
        foreach($nodes->children('air',true) as $hsr){
            if(strcmp($hsr->getName(),'AirSegmentList') == 0){
                foreach($hsr->children('air',true) as $hp){
                    if(strcmp($hp->getName(),'AirSegment') == 0){
                        $count = $count + 1;
                        file_put_contents($fileName,"\r\n"."Air Segment ".$count."\r\n"."\r\n", FILE_APPEND);
                        foreach($hp->attributes() as $a => $b   ){
                                $GLOBALS[$a] = "$b";
                                //echo "$a"." : "."$b";
                                $searchResult[$count][$a] = $b;
                                file_put_contents($fileName,$a." : ".$b."\r\n", FILE_APPEND);
                        }
                    }
                }
            }
            //break;
        }
    }
/*
    $Token = 'Token';
    $TokenKey = 'TokenKey';
    $fileName = "tokens.txt";
    if(file_exists($fileName)){
        file_put_contents($fileName, "");
    }

    foreach($Results->children('air',true) as $nodes){
        foreach($nodes->children('air',true) as $hsr){
            if(strcmp($hsr->getName(),'HostTokenList') == 0){
                foreach($hsr->children('common_v42_0', true) as $ht){
                    if(strcmp($ht->getName(), 'HostToken') == 0){
                        $GLOBALS[$Token] = $ht[0];
                        foreach($ht->attributes() as $a => $b){
                            if(strcmp($a, 'Key') == 0){
                                file_put_contents($fileName,$TokenKey.":".$b."\r\n", FILE_APPEND);
                            }
                        }
                        file_put_contents($fileName,$Token.":".$ht[0]."\r\n", FILE_APPEND);
                    }
                }
            }
        }
    }
    */

    echo "\r\n"."Processing Done. Please check results in files.";

    echo "<pre>";
    print_r($searchResult);
    die();

}

?>