Error on QSH call that I can't figure out

Folks: In the following code (PHP), we are attempting to pull in a spool file into the variable $result so we can format it and put it up on a web page. If we run the command via the PHP code we get a null in $result. If we run the command ( signed on as the same user ) from the command line it works.

QSH CMD('catsplf -j 026555/KATTANASIO/H512D QPJOBLOG 2')

I checked to see if the user profile had *SPLCTL and it does.

Any Idea what might be going on?


function i5_spool_get_data($spoolName, $jobName, $userName, $jobNumber, $spoolNumber, $fileName = '', $connection = null)
{
if (!$connection = verifyConnection($connection)) {
return false;
}

if (!is_numeric($spoolNumber)) {
// could be *NEXT or other misguided parameter. Use a '1' for compatibility.
$connection->logThis("Spool file number value '$spoolNumber' is unsupported. Please supply a number. The value '1' will be used.");
$spoolNumber = 1;
}

$cmdString = "catsplf -j {$jobNumber}/{$userName}/{$jobName} {$spoolName} {$spoolNumber}";
**********************
call making the trouble below!
************************
//full command will look like "QSH CMD('catsplf -j {$jobNumber}/{$userName}/{$jobName} {$spoolName} {$spoolNumber}')";
$result = $connection->qshellCommand($cmdString);

// if no error, we expect an array.
if (is_array($result)) {
// consolidate into a string with 0D0A separators
$resultString = trim(implode("\r\n", $result));

// if fileName provided, try to write data to the IFS file (return true if successful or false).
// otherwise simply return the string.
if ($fileName) {

$bytesWritten = file_put_contents($fileName, $resultString);
if ($bytesWritten) {
// good! Wrote OK
return true;
} else {
// bad! Could not write file. Old toolkit used CPF9898 so let's also use it.
i5CpfError('CPF9898', "Could not write to file '$fileName'.");
return false;
} //(if bytesWritten)


} else {
// no IFS filename provided. Return string to caller.
return $resultString;
} //(if $fileName)

} else {
// not an array. Probably a "false."
// Report the error.
$errMsg = $connection->getErrorMsg();
if (empty($errMsg)) {
$errMsg = 'Could not read spooled file. Check user permissions or see error code for details.';
}
i5CpfError($connection->getErrorCode(), $errMsg);
return false;
} //(if is_array)


} //(i5_spool_get_data)