Creating a File in Memory

Hello All, I am trying to zip data in a PHP program using the following code. The resulting file (ndfdViaPipe.kmz) is zip'ed but the data in the archive lacks a file name. So when a program like Google Earth tries to process the file, it fails. When I bring ndfdViaPipe.kmz into WinZip, the file has no name but can otherwise be extracted just fine. Once extracted, Google Earth can process the file. Does anyone know how I might add the "file name" information to the ndfdViaPipe.kmz? The reason I'm trying to use pipes is to avoid creating a file with the dynamically created data in $kml_string. The plan is to send $kmz_content out in a SOAP service message with the payload as base64 encoded file. If there is a better way to accomplish this I am certainly open to suggestions. In advance, thanks for any help you care to offer. John <?php $kml_string = "<?xml version=\"1.0\" encoding=\"UTF-8\"?>"; $kml_string = $kml_string . "<kml xmlns=\"http://earth.google.com/kml/2.1\">"; $kml_string = $kml_string . "<Document>"; $kml_string = $kml_string . " <name>National Digital Forecast Database Data</name>"; $kml_string = $kml_string . " <open>1</open>"; $kml_string = $kml_string . " <Schema parent=\"Placemark\" name=\"NdfdData\">";

$kml_string = $kml_string . "    <SimpleField type=\"wstring\" name=\"UOM\"></SimpleField>";
$kml_string = $kml_string . "    <SimpleField type=\"wstring\" name=\"ValidTime\"></SimpleField>";
$kml_string = $kml_string . "    <SimpleField type=\"int\" name=\"MaxTemp\"></SimpleField>";

$kml_string = $kml_string . " </Schema>"; $kml_string = $kml_string . " <NdfdData>";

$kml_string = $kml_string . "    <name>Maximum Temperature</name>";
$kml_string = $kml_string . "    <description>90F valid at 2007-06-26T00:00:00-04:00</description>";
$kml_string = $kml_string . "    <Point>";
$kml_string = $kml_string . "      <coordinates>-77.37,37.82</coordinates>";
$kml_string = $kml_string . "    </Point>";
$kml_string = $kml_string . "    <UOM>F</UOM>";
$kml_string = $kml_string . "    <ValidTime>2007-06-26T00:00:00-04:00</ValidTime>";
$kml_string = $kml_string . "    <MaxTemp>95</MaxTemp>";

$kml_string = $kml_string . " </NdfdData>"; $kml_string = $kml_string . " <NdfdData>";

$kml_string = $kml_string . "    <name>Maximum Temperature</name>";
$kml_string = $kml_string . "    <description>89F valid at 2007-06-26T00:00:00-04:00</description>";
$kml_string = $kml_string . "    <Point>";
$kml_string = $kml_string . "      <coordinates>-77.5,38.00</coordinates>";
$kml_string = $kml_string . "    </Point>";
$kml_string = $kml_string . "    <UOM>F</UOM>";
$kml_string = $kml_string . "    <ValidTime>2007-06-26T00:00:00-04:00</ValidTime>";
$kml_string = $kml_string . "    <MaxTemp>89</MaxTemp>";

$kml_string = $kml_string . " </NdfdData>"; $kml_string = $kml_string . "</Document>"; $kml_string = $kml_string . "</kml>"; $descriptorAssignments = array( 0 => array("pipe", "r"), // stdin is a pipe that the child will read from 1 => array("pipe", "w"), // stdout is a pipe that the child will write to 2 => array("file", "/tmp/error-output.txt", "a") // stderr is a file to write to ); $kmz_process = proc_open('zip',$descriptorAssignments,$pipes); if (is_resource($kmz_process)) { fwrite($pipes[0],$kml_string); fclose($pipes[0]); $kmz_content = stream_get_contents($pipes[1]); fclose($pipes[1]); $return_value = proc_close($kmz_process); // Only outputting data to ensure it is a properly formatted zip file // Normally, a SOAP service will sent the data as a base64 encoded payload $output_file = fopen('ndfdViaPipe.kmz','w'); fwrite($output_file,$kmz_content); fclose($output_file); } ?>