来自密钥的数组调用无法正常工作

Question

I'm trying to call to a specific part of an array with the key # and it's not working. I can output the array and see it...

Array
(
    [6] => Array
        (
            [0] => [e-mail]
            [1] => [e-mail]
        )

    [7] => Array
        (
            [0] => [e-mail]
            [1] => [e-mail]
        )

    [8] => Array
        (
            [0] => [e-mail]
            [1] => [e-mail]
        )

)

This array is $emailDB. I can call to the array manually with $emailDB[7] and it works, but if my call is dynamic like this it won't work...

<?php
$value = 7;
print_r($emailDB[$value]);
?>

I've never had an issue like this with an array so it's very odd. What really sucks is I'm under deadline with a form not working on a client's site...joy.

We tried this with no luck...

<?php
$value = 7;
print_r($emailDB[intval($value)]);
?>

I thought intval() would assist but it did not.

Answer 1

You're post implies a bug in php itself, which I highly doubt. What's more likely is that what you posted doesn't properly represent the code you're running.

Why don't try this. Make a brand new empty php file. Hardcode the array keys and values and assign them to the $emailDB variable, and then try

$value = 7;
print_r($emailDB[$value]);

You will see you don't have the problem that you claim. You have now started the debugging process, and now you can look at the working, and non working code to compare the difference.