PHPStan: Fix level 4 errors

adminer/include/auth.inc.php

@@ -61,6 +61,7 @@ function check_invalid_login() {
 			break;
 		}
 	}
+	/** @var array{int, int} */
 	$invalid = idx($invalids, $adminer->bruteForceKey(), array());
 	$next_attempt = ($invalid[1] > 29 ? $invalid[0] - time() : 0); // allow 30 invalid attempts
 	if ($next_attempt > 0) { //! do the same with permanent login

adminer/include/editing.inc.php

@@ -124,7 +124,7 @@ function referencable_primary($self) {
 
 /** Print SQL <textarea> tag
 * @param string
-* @param string or array in which case [0] of every element is used
+* @param string|list<array{string}>
 * @param int
 * @param int
 * @return void

adminer/include/functions.inc.php

@@ -174,7 +174,7 @@ function sid() {
 * @param string
 * @param string
 * @param string
-* @param string
+* @param ?string
 * @return void
 */
 function set_password($vendor, $server, $username, $password) {
@@ -185,7 +185,7 @@ function set_password($vendor, $server, $username, $password) {
 }
 
 /** Get password from session
-* @return string or null for missing password or false for expired password
+* @return string|false|null null for missing password, false for expired password
 */
 function get_password() {
 	$return = get_session("pwds");
@@ -549,7 +549,7 @@ class Queries {
 
 /** Execute and remember query
 * @param string end with ';' to use DELIMITER
-* @return Result
+* @return Result|bool
 */
 function queries($query) {
 	global $connection;
@@ -902,7 +902,7 @@ function rand_string() {
 }
 
 /** Format value to use in select
-* @param string
+* @param string|string[]
 * @param string
 * @param Field
 * @param int
@@ -945,7 +945,7 @@ function select_value($val, $link, $field, $text_length) {
 }
 
 /** Check whether the string is e-mail address
-* @param string
+* @param ?string
 * @return bool
 */
 function is_mail($email) {