Update to string array arguments - added format with SQLSRV_PHPTYPE_STRING.

git-svn-id: http://xe-core.googlecode.com/svn/branches/1.5.0-DB@8635 201d5d3c-b55e-5fd7-737f-ddc643e51545

classes/xml/xmlquery/argument/Argument.class.php

@@ -35,7 +35,7 @@
 		}
 
 		function getValue(){
-			$value = $this->escapeValue($this->value);
+			$value = $this->getEscapedValue();
 			return $this->toString($value);
 		}
 
@@ -43,6 +43,10 @@
                     return $this->column_operation;
                 }
 
+                function getEscapedValue(){
+                    return $this->escapeValue($this->value);
+                }
+
 		function getUnescapedValue(){
                         return $this->value;
 		}