How to get single value from this multi-dimensional PHP array

Use array_shift function

$myarray = array_shift($myarray);

This will move array elements one level up and you can access any array element without using [0] key

echo $myarray['email'];

will show [email protected]

I think you want this:

foreach ($myarray as $key => $value) {
    echo "$key = $value\n";
}

You can also use array_column(). It's available from PHP 5.5: php.net/manual/en/function.array-column.php

It returns the values from a single column of the array, identified by the column_key. Optionally, you may provide an index_key to index the values in the returned array by the values from the index_key column in the input array.

print_r(array_column($myarray, 'email'));

Look at the keys and indentation in your print_r:

echo $myarray[0]['email'];

echo $myarray[0]['gender'];

...etc