How is this associative array foreach working?

Question

I'm perplexed as to how this is not erroring on my server with the highest error reporting to be shown? Any insight is gladly welcomed.

$myArray = ['first' => '1A', 'second' => '2A', 'first' => '2A', 'second' => '2B'];

foreach($myArray as $value) {
    echo $value['first'] . "<br />";
}

Outputted:

1A
2A

Answer 1

You have duplicated array Keys and this is not allowed on arrays Check Arrays

You have to reformat Your array to be like this

$myArray = [['first' => '1A', 'second' => '2A'], ['first' => '2A', 'second' => '2B']];
foreach($myArray as $key => $value) {
    echo $value['first']."<br / >";
}