Notice: Array to string conversion in PDO - php

Question

I have this error which i can't seem to solve.
Here is the code
$this->stmt = $this->handle->prepare("SELECT * FROM tb_ph WHERE totalprofit = 0 AND status = '1' AND checks = ''");
$var = $this->stmt->fetchAll();
$var returns a multi dimensional array which i'd love to loop through so as to get their respective id and usernames.
Now the problem is that if i do
foreach($var as $key => $value){
$id = $value['id'];
$username = $value['username'];
$phone = $value['phone'];
}
i get the Notice: Array to string conversion error.
var_dump($var) gives
Array
(
[0] => Array
(
[id] => 3
[0] => 3
[username] => rose
[1] => rose
[phone] => [phone]
[2] => [phone]
)
[1] => Array
(
[id] => 4
[0] => 4
[username] => josh
[1] => rose
[phone] => +0182345578952
[2] => +0182345578952
)
)
How do i make the loop get just id, username and phone each time for the two results returned?

Answer 1

look at this bit very closely:
Array
(
[0] => Array
(
It shows you that what you have is an array of arrays so what get in your foreach is another array
foreach($var as $arr) {
/* here $arr is an array in calling print on it will produce the warning you have already seen but ...*/
print $arr[$id];
}
Because you are printing just one element of an array here. Similarly print $arr['username']