php get error

1ini_set('display_errors', '1');
2ini_set('display_startup_errors', '1');
3error_reporting(E_ALL);

1// how to display php errors on your browser : 
2// first step, create an error function : 
3
4$errors = array();
5
6// now you have just to insert the function like this : 
7
8if (........){
9  $errors['the_name_of_the_error']='the error message';
10}
11
12// example : 
13// we want to display an error when the user does not correctly fill, 
14// in the 'password' box when registering on your website : 
15
16if(empty($_POST['password']) ||
17   $_POST['password'] != $_POST['password_confirm']){
18	$errors['errors']= "You must enter a valid password";
19}

1error_reporting(-1);
2ini_set('display_errors', 'On');
3set_error_handler("var_dump");
4