diff --git a/test/functional/sqlsrv/test_max_length.phpt b/test/functional/sqlsrv/test_max_length.phpt
new file mode 100644
index 00000000..b52c2970
--- /dev/null
+++ b/test/functional/sqlsrv/test_max_length.phpt
@@ -0,0 +1,113 @@
+--TEST--
+Maximum length outputs from stored procs for string types (nvarchar, varchar, and varbinary)
+--SKIPIF--
+<?php require('skipif.inc'); ?>
+--FILE--
+<?php
+
+set_time_limit(0);
+
+$inValue1 = str_repeat( 'A', 3999 );
+
+$outValue1 = "TEST";
+
+sqlsrv_configure('WarningsReturnAsErrors', 0);
+sqlsrv_configure('LogSubsystems', 15);
+
+require( 'MsCommon.inc' );
+
+$conn = Connect();
+
+$field_type = 'NVARCHAR(4000)';
+
+$stmt = sqlsrv_query($conn, "DROP PROC [TestFullLenStringsOut]");
+$stmt = sqlsrv_query($conn, "CREATE PROC [TestFullLenStringsOut] (@p1 " . $field_type . ", @p2 " . $field_type . " OUTPUT)
+ AS
+ BEGIN
+   SELECT @p2 = CONVERT(" . $field_type . ", @p1 + N'A')
+ END");
+if( $stmt === false ) {
+    die( print_r( sqlsrv_errors(), true ));
+}
+
+// remember to increment buffer_len to 8001 to see what happens 
+$stmt = sqlsrv_query($conn, "{CALL [TestFullLenStringsOut] (?, ?)}", 
+      array(
+        array($inValue1, SQLSRV_PARAM_IN, SQLSRV_PHPTYPE_STRING('utf-8'), SQLSRV_SQLTYPE_NVARCHAR(4000)),
+        array(&$outValue1, SQLSRV_PARAM_INOUT, SQLSRV_PHPTYPE_STRING('utf-8'), SQLSRV_SQLTYPE_NVARCHAR(4000))));
+if( $stmt === false ) {
+    die( print_r( sqlsrv_errors(), true ));
+}
+while( sqlsrv_next_result( $stmt )) {}
+print_r( strlen( $outValue1 ));
+echo "\n";
+print_r( substr( $outValue1, -2, 2 ));
+
+$field_type = 'VARCHAR(8000)';
+$inValue1 = str_repeat( 'A', 7999 );
+
+$stmt = sqlsrv_query($conn, "DROP PROC [TestFullLenStringsOut]");
+if( $stmt === false ) {
+    die( print_r( sqlsrv_errors(), true ));
+}
+$stmt = sqlsrv_query( $conn, "CREATE PROC [TestFullLenStringsOut] (@p1 " . $field_type . ", @p2 " . $field_type . " OUTPUT)
+ AS
+ BEGIN
+   SELECT @p2 = CONVERT(" . $field_type . ", @p1 + 'A')
+ END" );
+if( $stmt === false ) {
+    die( print_r( sqlsrv_errors(), true ));
+}
+
+$stmt = sqlsrv_query($conn, "{CALL [TestFullLenStringsOut] (?, ?)}", 
+     array(
+       array($inValue1, SQLSRV_PARAM_IN, SQLSRV_PHPTYPE_STRING(SQLSRV_ENC_CHAR), SQLSRV_SQLTYPE_VARCHAR(8000)),
+       array(&$outValue1, SQLSRV_PARAM_INOUT, SQLSRV_PHPTYPE_STRING(SQLSRV_ENC_CHAR), SQLSRV_SQLTYPE_VARCHAR(8000))));
+if( $stmt === false ) {
+    die( print_r( sqlsrv_errors(), true ));
+}
+while( sqlsrv_next_result( $stmt )) {}
+echo "\n";
+print_r( strlen( $outValue1 ));
+echo "\n";
+print_r( substr( $outValue1, -2, 2 ));
+
+$field_type = 'VARBINARY(8000)';
+$inValue1 = str_repeat( 'A', 7999 );
+
+$stmt = sqlsrv_query($conn, "DROP PROC [TestFullLenStringsOut]");
+if( $stmt === false ) {
+    die( print_r( sqlsrv_errors(), true ));
+}
+$stmt = sqlsrv_query($conn, "CREATE PROC [TestFullLenStringsOut] (@p1 " . $field_type . ", @p2 " . $field_type . " OUTPUT)
+ AS
+ BEGIN
+   SELECT @p2 = CONVERT(" . $field_type . ", @p1 + 0x42)
+ END");
+if( $stmt === false ) {
+    die( print_r( sqlsrv_errors(), true ));
+}
+
+$stmt = sqlsrv_query($conn, "{CALL [TestFullLenStringsOut] (?, ?)}", 
+     array(
+       array($inValue1, SQLSRV_PARAM_IN, SQLSRV_PHPTYPE_STRING(SQLSRV_ENC_BINARY), SQLSRV_SQLTYPE_VARBINARY(8000)),
+       array(&$outValue1, SQLSRV_PARAM_INOUT, SQLSRV_PHPTYPE_STRING(SQLSRV_ENC_BINARY), SQLSRV_SQLTYPE_VARBINARY(8000))));
+if( $stmt === false ) {
+    die( print_r( sqlsrv_errors(), true ));
+}
+while( sqlsrv_next_result( $stmt )) {}
+echo "\n";
+print_r( strlen( $outValue1 ));
+echo "\n";
+print_r( substr( $outValue1, -2, 2 ));
+
+sqlsrv_close( $conn );
+
+?>
+--EXPECT--
+4000
+AA
+8000
+AA
+8000
+AB