From:             toma at smartsemantics dot com
Operating system: Linux RedHat Enterprise 3
PHP version:      5.0.3
PHP Bug Type:     MySQLi related
Bug description:  mysqli_insert_id with mysqli_multi_query returns wrong value

Description:
------------
I am executing a loop of 4 statements: 2 INSERTS returning insert IDs and
2 SELECTS.  The last 2 SELECTS both show insert IDs equal to the value of
the last successful INSERT.  I believe the appropriate behavior should be
that mysqli_insert_id return a value of zero or null for the SELECTs.

Reproduce code:
---------------
<?php
$server='localhost';
$user='parkdomains';
$pass='[EMAIL PROTECTED]@ce$';
$database='ParkDomains';

###CONNECT TO DATABASE
$dbconn=mysqli_init();
mysqli_options($dbconn,MYSQLI_OPT_CONNECT_TIMEOUT,8);
//mysqli_real_connect($dbconn,$server,$user,$pass,$database,null,null,MYSQLI_CLIENT_FOUND_ROWS);
mysqli_real_connect($dbconn,$server,$user,$pass,$database,null,null,MYSQLI_CLIENT_FOUND_ROWS);
if(mysqli_connect_errno()){
        printf("Can't connect to the MySQL Server (".$server."): %s\n",
mysqli_connect_error()); 
}
@mysqli_select_db($dbconn,$database);
if(mysqli_error($dbconn)) $ReportError(sprintf("Can't select the MYSQL
database (".$database."): %s\n", mysqli_error($dbconn)),1);


###OUR SQL STATEMENTS###
$sql_statements_statements=array();
$sql_statements[]="INSERT INTO test () VALUES('','test')";
$sql_statements[]="INSERT INTO test () VALUES('','test')";
$sql_statements[]="SELECT * FROM test LIMIT 3";
$sql_statements[]="SELECT * FROM test LIMIT 2";

###COMBINE THEM INTO ONE###
$query=implode(';',$sql_statements);
echo $query."<BR>\n";

$ret=array();
reset($sql_statements);
if(mysqli_multi_query($dbconn,$query)){
        do{
                $obj=new stdClass();
                list(,$obj->sql)=each($sql_statements);
                $res=mysqli_store_result($dbconn);
                $obj->affected_rows=mysqli_affected_rows($dbconn);
                $obj->last_insert_id=mysqli_insert_id($dbconn);
                if($res){
                        if(mysqli_num_rows($res)>0){
                                while ($row=mysqli_fetch_row($res)){
                                        $obj->result[]=$row;
                                };
                                mysqli_free_result($res);
                        }
                }
                $ret[]=$obj;
        }while(mysqli_next_result($dbconn));
}
echo "<pre>";
print_r($ret);
?>

Expected result:
----------------
INSERT INTO test () VALUES('','test');INSERT INTO test ()
VALUES('','test');SELECT * FROM test LIMIT 3;SELECT * FROM test LIMIT 2

Array
(
    [0] => stdClass Object
        (
            [sql] => INSERT INTO test () VALUES('','test')
            [affected_rows] => 1
            [last_insert_id] => 46
        )

    [1] => stdClass Object
        (
            [sql] => INSERT INTO test () VALUES('','test')
            [affected_rows] => 1
            [last_insert_id] => 47
        )

    [2] => stdClass Object
        (
            [sql] => SELECT * FROM test LIMIT 3
            [affected_rows] => 3
            [last_insert_id] => 47
            [result] => Array
                (
                    [0] => Array
                        (
                            [0] => 30
                            [1] => 0
                        )

                    [1] => Array
                        (
                            [0] => 31
                            [1] => 0
                        )

                    [2] => Array
                        (
                            [0] => 32
                            [1] => 0
                        )

                )

        )

    [3] => stdClass Object
        (
            [sql] => SELECT * FROM test LIMIT 2
            [affected_rows] => 2
            [last_insert_id] => 47
            [result] => Array
                (
                    [0] => Array
                        (
                            [0] => 30
                            [1] => 0
                        )

                    [1] => Array
                        (
                            [0] => 31
                            [1] => 0
                        )

                )

        )

)



Actual result:
--------------
INSERT INTO test () VALUES('','test');INSERT INTO test ()
VALUES('','test');SELECT * FROM test LIMIT 3;SELECT * FROM test LIMIT 2

Array
(
    [0] => stdClass Object
        (
            [sql] => INSERT INTO test () VALUES('','test')
            [affected_rows] => 1
            [last_insert_id] => 46
        )

    [1] => stdClass Object
        (
            [sql] => INSERT INTO test () VALUES('','test')
            [affected_rows] => 1
            [last_insert_id] => 47
        )

    [2] => stdClass Object
        (
            [sql] => SELECT * FROM test LIMIT 3
            [affected_rows] => 3
            [last_insert_id] => 0
            [result] => Array
                (
                    [0] => Array
                        (
                            [0] => 30
                            [1] => 0
                        )

                    [1] => Array
                        (
                            [0] => 31
                            [1] => 0
                        )

                    [2] => Array
                        (
                            [0] => 32
                            [1] => 0
                        )

                )

        )

    [3] => stdClass Object
        (
            [sql] => SELECT * FROM test LIMIT 2
            [affected_rows] => 2
            [last_insert_id] => 0
            [result] => Array
                (
                    [0] => Array
                        (
                            [0] => 30
                            [1] => 0
                        )

                    [1] => Array
                        (
                            [0] => 31
                            [1] => 0
                        )

                )

        )

)



-- 
Edit bug report at http://bugs.php.net/?id=32195&edit=1
-- 
Try a CVS snapshot (php4):   http://bugs.php.net/fix.php?id=32195&r=trysnapshot4
Try a CVS snapshot (php5.0): 
http://bugs.php.net/fix.php?id=32195&r=trysnapshot50
Try a CVS snapshot (php5.1): 
http://bugs.php.net/fix.php?id=32195&r=trysnapshot51
Fixed in CVS:                http://bugs.php.net/fix.php?id=32195&r=fixedcvs
Fixed in release:            http://bugs.php.net/fix.php?id=32195&r=alreadyfixed
Need backtrace:              http://bugs.php.net/fix.php?id=32195&r=needtrace
Need Reproduce Script:       http://bugs.php.net/fix.php?id=32195&r=needscript
Try newer version:           http://bugs.php.net/fix.php?id=32195&r=oldversion
Not developer issue:         http://bugs.php.net/fix.php?id=32195&r=support
Expected behavior:           http://bugs.php.net/fix.php?id=32195&r=notwrong
Not enough info:             
http://bugs.php.net/fix.php?id=32195&r=notenoughinfo
Submitted twice:             
http://bugs.php.net/fix.php?id=32195&r=submittedtwice
register_globals:            http://bugs.php.net/fix.php?id=32195&r=globals
PHP 3 support discontinued:  http://bugs.php.net/fix.php?id=32195&r=php3
Daylight Savings:            http://bugs.php.net/fix.php?id=32195&r=dst
IIS Stability:               http://bugs.php.net/fix.php?id=32195&r=isapi
Install GNU Sed:             http://bugs.php.net/fix.php?id=32195&r=gnused
Floating point limitations:  http://bugs.php.net/fix.php?id=32195&r=float
No Zend Extensions:          http://bugs.php.net/fix.php?id=32195&r=nozend
MySQL Configuration Error:   http://bugs.php.net/fix.php?id=32195&r=mysqlcfg

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