ID: 31960
User updated by: danielc at analysisandsolutions dot com
-Summary: msql_fetch_row() and msql_fetch_array() dropping
columns with NULL values
Reported By: danielc at analysisandsolutions dot com
Status: Open
Bug Type: mSQL related
Operating System: NetBSD 2.0
PHP Version: 5CVS-2005-02-13 (dev)
New Comment:
I looked at the MySQL extension to see how they handled NULL values and
copied that into the mSQL extension. Here's the patch against head:
http://www.analysisandsolutions.com/php/php_msql.c.bug31960.diff
Works fine on my installation of 5.0.4-dev.
Previous Comments:
------------------------------------------------------------------------
[2005-02-13 21:02:44] danielc at analysisandsolutions dot com
Description:
------------
msql_fetch_row() and msql_fetch_array() silently drop columns that
contain NULL values. It's important to retrieve all data from a row,
even if it's NULL. oci8 does this just fine.
While there's a comment in the msql_fetch_array() documentation to
watch out for items that have NULL/0/'' values, it doesn't exactly say
what the problem is and it only talks about results that have only one
column.
Reproduce code:
---------------
$con = msql_connect();
$db = msql_select_db('ptdb', $con);
msql_query('CREATE TABLE blah (i INT, c CHAR(5))', $con);
msql_query("INSERT INTO blah VALUES (1, 'a')", $con);
msql_query("INSERT INTO blah VALUES (2, NULL)", $con);
msql_query("INSERT INTO blah VALUES (NULL, 'c')", $con);
$result = msql_query('SELECT * FROM blah', $con);
while ($arr = msql_fetch_array($result, MSQL_ASSOC)) {
var_dump($arr);
echo "\n";
}
msql_query('DROP TABLE blah', $con);
Expected result:
----------------
array(2) {
["i"]=>
string(1) "1"
["c"]=>
string(1) "a"
}
array(2) {
["i"]=>
string(1) "2"
["c"]=>
NULL
}
array(2) {
["a"]=>
NULL
["c"]=>
string(1) "c"
}
Actual result:
--------------
array(2) {
["i"]=>
string(1) "1"
["c"]=>
string(1) "a"
}
array(1) {
["i"]=>
string(1) "2"
}
array(1) {
["c"]=>
string(1) "c"
}
------------------------------------------------------------------------
--
Edit this bug report at http://bugs.php.net/?id=31960&edit=1
