为什么这个PHP代码只是回显“数组”？

Question

Here is my code:

if(isset($_POST['check']) AND $_POST['check'] == 'First') {
  $errormessage = array();

  if(empty($_POST['full_name']) || strlen($_POST['full_name']) < 4) { 
     $errormessage[] = "FEL - Vänligen ange fullständiga namn. Please enter atleast 3 or more characters for your name";
  }
  if(!isEmail($_POST['usr_email'])) {
     $errormessage[] = "FEL - Invalid email address.";
  }
  if(empty($errormessage)) {
     echo 1;
  } else { 
     echo $errormessage; // <--
  }
}

When echo $errormessage runs it outputs Array. What am I doing wrong?

Answer 1

You are calling echo on an actual array, which does not have an implicit string representation.

In order to output an array's contents you can use the print_r, var_dump or var_export functions or for custom output, you can use array_map or even a foreach loop:

print_r($errormessage);
var_dump($errormessage);
var_export($errormessage);

foreach($errormessage as $error) 
   echo $error . '<br/>';

array_map('echo', $errormessage);