foreach声明没有检查所有条件

Question

I'm new to PHP. I'm trying to check that no field is empty in a certain form, so I used a foreach statement but it only checks one by one instead of all at once.

Here is my code:

<?php

if (isset($_POST[submit])) {
    ValidateUser();
}

function ValidateUser() {
    $username = $_POST['username'];
    $password = $_POST['password'];
    $details = array($username, $password);

    foreach($details as $detail) {
        if (!empty($detail)) {
            echo "hurrayy";
        }
    }
}

?>

So instead of displaying "hurrayy" when BOTH username and password are not empty, it displays as long as one of them is not empty. Please help.

Answer 1

You don't need to assign them to an array and loop

function ValidateUser() {
    if(!empty($_POST['username']) AND !empty($_POST['password'])) {
    $username = $_POST['username'];
    $password = $_POST['password'];
    echo "Hurray!";
    }
}

8 lines down to 5, no loop and no array assignment.