Doc-comments: Use array shapes in @return

This uses https://phpstan.org/writing-php-code/phpdoc-types#array-shapes
I'm not going to do this in @param, it would be better to use https://phpstan.org/writing-php-code/phpdoc-types#global-type-aliases

adminer/include/adminer.inc.php

@@ -15,14 +15,14 @@ class Adminer {
 	}
 
 	/** Connection parameters
-	* @return array [$server, $username, $password]
+	* @return array{string, string, string}
 	*/
 	function credentials() {
 		return array(SERVER, $_GET["username"], get_password());
 	}
 
 	/** Get SSL connection options
-	* @return array ["key" => filename, "cert" => filename, "ca" => filename] or null
+	* @return string[] or null
 	*/
 	function connectSsl() {
 	}
@@ -220,7 +220,7 @@ class Adminer {
 	/** Find backward keys for table
 	* @param string
 	* @param string
-	* @return array[] $return[$target_table]["keys"][$key_name][$target_column] = $source_column; $return[$target_table]["name"] = $this->tableName($target_table);
+	* @return array{keys:string[][], name:string}[]
 	*/
 	function backwardKeys($table, $tableName) {
 		return array();

adminer/include/editing.inc.php

@@ -218,7 +218,7 @@ function edit_type($key, $field, $collations, $foreign_keys = array(), $extra_ty
 
 /** Get partition info
 * @param string
-* @return array
+* @return array{partition_by:string, partition:string, partitions:string, partition_names:list<string>, partition_values:list<string>}
 */
 function get_partitions_info($table) {
 	global $connection;

adminer/include/functions.inc.php

@@ -701,7 +701,7 @@ function friendly_url($val) {
 /** Get status of a single table and fall back to name on error
 * @param string
 * @param bool
-* @return array[]
+* @return array[] same as table_status()
 */
 function table_status1($table, $fast = false) {
 	$return = table_status($table, $fast);
@@ -724,7 +724,7 @@ function column_foreign_keys($table) {
 }
 
 /** Compute fields() from $_POST edit data
-* @return array[]
+* @return array[] same as fields()
 */
 function fields_from_edit() {
 	global $driver;