bool db2_bind_param  ( 
   resource $stmt  , 
   int $parameter-number  , 
   string $variable-name  
   [, int $parameter-type  [, int $data-type =  0   [, int $precision = - 1   [, int $scale =  0   ]]]] )

$sql = "INSERT INTO NULLID.XML_INPUT (FROM_FILE,XML_DATA)
   			VALUES ( '$fname',XMLPARSE(
   					 document cast(? as Clob) preserve whitespace
                   			  )
   		  		    )";
$stmt = db2_prepare($conn, $sql);
$XMLDataString = $xml_source;
if(db2_bind_param($stmt,  1 , "XMLDataString", DB2_PARAM_IN) === false) {		    
    print_r (db2_stmt_errormsg());

[IBM][CLI Driver] CLI0131E Недопустимая длина строки или буфера. SQLSTATE=HY090 SQLCODE=- 99999 

$filename = "C:\\work\\xml_data\\tmp$fname";
$file1 = fopen($filename,'w');
fwrite($file1,$XMLDataString);
fclose($file1);
//echo $filename;
if(db2_bind_param($stmt,  1 , "filename", DB2_PARAM_FILE) === false) {	

XML[IBM][CLI Driver][DB2/NT] SQL0302N 
Значение переменной хоста, заданной в операторе EXECUTE или OPEN, 
вне диапазона для предполагаемого использования. SQLSTATE= 22001  SQLCODE=- 302 

PHP_FUNCTION(db2_bind_param)
{
	char *varname = NULL;
	int argc = ZEND_NUM_ARGS();
	int stmt_id = - 1 ;
	int varname_len;
	long param_type; /* set default here */
	/* LONG types used for data being passed in */
	long param_no =  0 ;
	long data_type =  0 ;
	long precision = - 1 ;
	long scale =  0 ;

        ...
		switch (argc) {
			/* if argc == 3, then the default value for param_type will be used */
			case  3 :
				param_type = DB2_PARAM_IN;
				/* Fall through */

			/* Otherwise, param_type will contain the value passed in */
			case  4 :
			case  5 :
			case  6 :
				/* No param data specified */
                                ....
				if((sql_data_type == SQL_XML) && ((param_type == DB2_PARAM_OUT) || (param_type == DB2_PARAM_INOUT)))
				{
					if(precision <  0 )
					{
						sql_precision =  1048576 ;
					}
					else
					{
						sql_precision = (SQLUINTEGER)precision;
					}
				}

    $stmt = db2_prepare($dbconn, 'CALL test_xml2(?, ?, ?, ?, ?, ?)');
    $xmlResult1 = '';
    $xmlResult2 = '';
    $xmlResult3 = '';
    $xmlResult4 = '';
    $xmlResult5 = '';
    $xmlResult6 = '';

    db2_bind_param($stmt,  1 , "xmlResult1", DB2_PARAM_IN, DB2_XML,  2 );
    db2_bind_param($stmt,  2 , "xmlResult2", DB2_PARAM_IN, DB2_XML,  5 ,  3 );
    db2_bind_param($stmt,  3 , "xmlResult3", DB2_PARAM_OUT, DB2_XML,  5 );
    db2_bind_param($stmt,  4 , "xmlResult4", DB2_PARAM_OUT, DB2_XML, - 1 ,  10 );
    db2_bind_param($stmt,  5 , "xmlResult5", DB2_PARAM_INOUT, DB2_XML,  0 ,  4 );
    db2_bind_param($stmt,  6 , "xmlResult6", DB2_PARAM_INOUT, DB2_XML,  2 ,  4 );
    $res = db2_execute($stmt);
    if (!$res) {
        echo db2_stmt_errormsg();
    }

PHP_FUNCTION(db2_bind_param)
{
	long precision = - 1 ;
	long scale =  0 ;

        ...
		switch (argc) {

			case  6 :
				/* No param data specified */
                                ....
				if((sql_data_type == SQL_XML) && ((param_type == DB2_PARAM_OUT) || (param_type == DB2_PARAM_INOUT)))
				{
					if(precision <  0 )
					{
						sql_precision =  1048576 ;
					}
					else
					{
						sql_precision = (SQLUINTEGER)precision;
					}
				}

  	  $sql = "INSERT INTO DB2ADMIN.XML_FROM_FILES(FROM_FILE,XML_DATA) 
  	          VALUES('$fname',
  	                  XMLVALIDATE(CAST (? as XML) ACCORDING TO XMLSCHEMA ID DB2ADMIN.myShema)
  	                )";  		    
	  $stmt = db2_prepare($conn, $sql);
	  $XMLDataString = $xml_source;	  
	  if(db2_bind_param($stmt,  1 , "XMLDataString") === false) {