Re: Strange foreach reference issue

I cut and pasted your code and got the same result. I flipped the two foreach blocks and got the expected results. I deleted the first block and copied the second, then updated the string. I got this. I can't explain. <?php

    $row_list = array(
        array(
            'Title' => 'Title #1',
        ),
        array(
            'Title' => 'Title #2',
        ),
        array(
            'Title' => 'Title #3',
        ) );

print " Rows are: " . print_r($row_list, true);

    foreach ($row_list as $idx => $row) {
        print "Title A $idx: {$row['Title']}\n";
    }

print " Rows are now: " . print_r($row_list, true);

    foreach ($row_list as $idx => $row) {
        print "Title B $idx: {$row['Title']}\n";
    }

Rows are: Array (

    [0] =>  Array
        (
            [Title] =>  Title #1
        )

    [1] =>  Array
        (
            [Title] =>  Title #2
        )

    [2] =>  Array
        (
            [Title] =>  Title #3
        )

) Title A 0: Title #1 Title A 1: Title #2 Title A 2: Title #3 Rows are now: Array (

    [0] =>  Array
        (
            [Title] =>  Title #1
        )

    [1] =>  Array
        (
            [Title] =>  Title #2
        )

    [2] =>  Array
        (
            [Title] =>  Title #3
        )

) Title B 0: Title #1 Title B 1: Title #2 Title B 2: Title #3 On 12-01-07 06:29 PM, Tim Behrendsen wrote:

Hello, This sure looks like a bug, but maybe there's some subtlety going on that I don't understand, so I would appreciate some insight. After much debugging, I tracked down a bug in my code to this test program. My PHP version is 5.3.3, running under Fedora Linux. <?php

    $row_list = array(
        array(
            'Title' => 'Title #1',
        ),
        array(
            'Title' => 'Title #2',
        ),
        array(
            'Title' => 'Title #3',
        ) );

    print "   Rows at start: " . print_r($row_list, true);
    foreach ($row_list as $idx => &$row) {
        print "Title A $idx: {$row['Title']}\n";
    }

    print "   Rows are now: " . print_r($row_list, true);
    foreach ($row_list as $idx => $row) {
        print "Title B $idx: {$row['Title']}\n";
    }

?> When you run the program, it gives the following output: ------------------------------------------ Rows at start: Array (

    [0] => Array
        (
            [Title] => Title #1
        )

    [1] => Array
        (
            [Title] => Title #2
        )

    [2] => Array
        (
            [Title] => Title #3
        )

) Title A 0: Title #1 Title A 1: Title #2 Title A 2: Title #3 Rows are now: Array (

    [0] => Array
        (
            [Title] => Title #1
        )

    [1] => Array
        (
            [Title] => Title #2
        )

    [2] => Array
        (
            [Title] => Title #3
        )

) Title B 0: Title #1 Title B 1: Title #2 Title B 2: Title #2 ------------------------------------------ Note that the second foreach repeats the second row, even though the index is correct and the print_r shows things as correct. Now, if you change the name of the reference variable from '$row' to '$rowx' (for example), things will work. So clearly there's some issue with $row being previously used as a reference that's "contaminating" the subsequent use of $row in the foreach. If there's some logic to this, it's escaping me. Any insight on this would be appreciated. Regards, Tim Behrendsen