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PHP array not outputting properly
$errors = array();

if (strlen($password) >= 6) {
    array_push($errors, "Your password is not long enough! Must be over 6 characters!");
}

if(count($errors) !== 0) {
...
} else {
    echo "There is errors<br/>";
    foreach($errors as $er){
        echo $er . "<br/>";
    }
}

if(count($errors) === 0) {
     // everything is okay
} else {
    echo "There are errors<br/>";
    foreach($errors as $er){
        echo $er . "<br/>";
    }
}

if (strlen($password) <= 6) {

if (strlen($password) < 6) {
  array_push($errors, ...);

define('MIN_PASSWORD_LENGTH', 6);

// ...

if (strlen($password) < MIN_PASSWORD_LENGTH) {
    array_push($errors, "Your password is not long enough!"
      . " Must be over ".MIN_PASSWORD_LENGTH." characters!");
}

if(count($errors) >0) {  //there are errors
    echo "There is errors<br/>";
    foreach($errors as $er){
        echo $er . "<br/>";
    }
}else{
    //there are no errors
}