PHP - 从多维数组中获取数据

Question

Easy question ... but here it goes:

I have an array and I need to use the [0] index which represents the id of each user. But I can't seem to get it in a foreach statement.

$emails = $aTools->getUsers();

Below is a print_r of the above array '$emails'.

Array
(
[0] => Array
    (
        [0] => 72
        [1] => 
        [2] => [e-mail]
    )

[1] => Array
    (
        [0] => 62
        [1] => 
        [2] => [e-mail]
    )

[2] => Array
    (
        [0] => 64
        [1] => 
        [2] => [e-mail]
    )

[3] => Array
    (
        [0] => 66
        [1] => 
        [2] => [e-mail]
    )
)

This is not working

$i = 0;
foreach($emails as $email)
{
    echo $email[$i][0];
    echo "<br/>";
    $i++;
}

Answer 1

Each time u're looping u'll get in $email on the entry table :

Array
    (
        [0] => 72
        [1] => 
        [2] => [e-mail]
    )

Then

Array
(
    [0] => 62
    [1] => 
    [2] => [e-mail]
)

ETC..

So echo $email[$i][0] can't return the id u want.

$email[0] CAN.

SOLUTION :

 foreach($emails as $email)
        echo $email[0];